{"source_checked_on":"2026-10-19","schema_version":1,"key":"enterprise/T1534","id":"T1534","name":"Internal Spearphishing","domain":"enterprise","reviewed_on":"2026-09-28","source_url":"https://attack.mitre.org/techniques/T1534","source_file":{"file":"enterprise.json","url":"https://raw.githubusercontent.com/mitre-attack/attack-stix-data/20664a889568dce884a1dac0ec7b12ae3a199f51/enterprise-attack/enterprise-attack-20.0.json","sha256":"81113ba98afa2928f3dcff62022539f7ce30c315c32e14422f11ff95ce534352","bytes":55271014},"source_object_sha256":"28b57a12d982bb517e8ef5d814b2ecf36ef0c81ce9f82ef3b3de04172d39adcf","description":"After they already have access to accounts or systems within the environment, adversaries may use internal spearphishing to gain access to additional information or compromise other users within the same organization. Internal spearphishing is multi-staged campaign where a legitimate account is initially compromised either by controlling the user's device or by compromising the account credentials of the user. Adversaries may then attempt to take advantage of the trusted internal account to increase the likelihood of tricking more victims into falling for phish attempts, often incorporating [Impersonation](https://attack.mitre.org/techniques/T1684/001).(Citation: Trend Micro - Int SP)\n\nFor example, adversaries may leverage [Spearphishing Attachment](https://attack.mitre.org/techniques/T1566/001) or [Spearphishing Link](https://attack.mitre.org/techniques/T1566/002) as part of internal spearphishing to deliver a payload or redirect to an external site to capture credentials through [Input Capture](https://attack.mitre.org/techniques/T1056) on sites that mimic login interfaces.\n\nAdversaries may also leverage internal chat apps, such as Microsoft Teams, to spread malicious content or engage users in attempts to capture sensitive information and/or credentials.(Citation: Int SP - chat apps)","references":[{"source_name":"mitre-attack","url":"https://attack.mitre.org/techniques/T1534","external_id":"T1534"},{"source_name":"Int SP - chat apps","description":"Microsoft Threat Intelligence. (2023, August 2). Midnight Blizzard conducts targeted social engineering over Microsoft Teams. Retrieved February 16, 2024.","url":"https://www.microsoft.com/en-us/security/blog/2023/08/02/midnight-blizzard-conducts-targeted-social-engineering-over-microsoft-teams/"},{"source_name":"Trend Micro - Int SP","description":"Trend Micro. (n.d.). Retrieved February 16, 2024.","url":"https://www.trendmicro.com/en_us/research.html"}],"platforms":["Linux","macOS","Office Suite","SaaS","Windows"],"environments":["cloud","cloud-hosted-endpoint","onprem","saas"],"visibility":"source_mapped","visibility_note":null,"parent":null,"children":[],"telemetry":[{"id":"DC0038","name":"Application Log Content","page":"telemetry/DC0038/","kind":"attack_component","category":"Application and service audit","description":"Application-emitted audit or operational event content.","collection_focus":"Select the application event family required by the detection and document its native schema before normalization.","providers":[{"name":"Application audit logs","scope":"First-party service events and request/result fields; schema is application-specific.","source_id":"otel"},{"name":"OpenTelemetry-compatible log pipelines","scope":"Transport and normalization of emitted records; do not create missing audit instrumentation.","source_id":"otel"}],"configuration":["Enable the application audit category or instrument the owned lab application at the authorization/action boundary.","Define a schema with timestamp, service, actor, object, action, result and correlation ID. Export structured records through an authenticated collector.","Redact secrets and personal content, separate audit from debug logs, set retention and verify delivery during rotation/restart."],"configuration_example":null,"required_fields":["service","action","actor","record_count","result"],"example":{"schema":"1200km.telemetry.example.v1","synthetic":true,"timestamp":"2026-09-27T12:00:00Z","telemetry_id":"DC0038","collector":"illustrative-lab-collector","observation":{"service":"lab-portal","action":"export_requested","actor":"lab-reader","record_count":3,"result":"authorized"}},"example_note":"Project-normalized synthetic JSON, not a native provider log, captured event, attack verdict or validated detection. A parser/adapter is required for a real SIEM. Example names, IPs and values are fictional.","limitations":"Debug output is not necessarily a durable audit trail. Application developers must emit the relevant event; installing a log pipeline does not make an absent event exist.","sources":[{"id":"otel","title":"OpenTelemetry log data model","url":"https://opentelemetry.io/docs/specs/otel/logs/data-model/"}],"association":"attack_component","anomaly_design":"Per application, client and route: request rate, rare actions, failure ratios and unusual state transitions. Version changes, retries, health probes and seasonal load need separate baselines."},{"id":"DC0064","name":"Command Execution","page":"telemetry/DC0064/","kind":"attack_component","category":"Script and command execution","description":"Execution of a command and its interpreter or parent context.","collection_focus":"Collect process command lines and relevant shell/interpreter audit; shell history alone is neither complete nor tamper-resistant.","providers":[{"name":"PowerShell Script Block Logging","scope":"Script content via event 4104 when configured; channel depends on PowerShell edition.","source_id":"powershell"},{"name":"Sysmon process events","scope":"Interpreter launch and parent context, not full script content.","source_id":"sysmon"},{"name":"Linux Audit","scope":"execve-family execution context; shell built-ins need additional instrumentation.","source_id":"linux"}],"configuration":["Enable Script Block Logging through the policy/configuration for the installed edition. Forward Microsoft-Windows-PowerShell/Operational for Windows PowerShell, or PowerShellCore/Operational for PowerShell 7.","Retain script-block ID and fragment ordering alongside process creation. Protect access to collected script text; secrets may be included.","On Linux, use narrowly scoped Audit execution rules for the lab account and supported architectures, and retain joined SYSCALL/EXECVE/PATH records."],"configuration_example":null,"required_fields":["interpreter","command_line","actor_uid","session_id"],"example":{"schema":"1200km.telemetry.example.v1","synthetic":true,"timestamp":"2026-09-27T12:00:00Z","telemetry_id":"DC0064","collector":"illustrative-lab-collector","observation":{"interpreter":"/bin/sh","command_line":"printf LAB_TELEMETRY_CHECK","actor_uid":1000,"session_id":"lab-session-1"}},"example_note":"Project-normalized synthetic JSON, not a native provider log, captured event, attack verdict or validated detection. A parser/adapter is required for a real SIEM. Example names, IPs and values are fictional.","limitations":"Script content and process command lines are different signals. Logging may be partial, fragmented, filtered or disabled; never assume a command line reveals everything executed.","sources":[{"id":"powershell","title":"Microsoft PowerShell logging on Windows","url":"https://learn.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_logging_windows?view=powershell-7.5"},{"id":"sysmon","title":"Microsoft Sysmon events and configuration","url":"https://learn.microsoft.com/en-us/sysinternals/downloads/sysmon"},{"id":"linux","title":"Linux Audit rule configuration","url":"https://www.man7.org/linux/man-pages/man8/auditctl.8.html"}],"association":"attack_component","anomaly_design":"Per host role and principal: rare interpreters, command argument patterns and parent-child sequences. Normalize scripts carefully; obfuscation, administrative automation and missing command lines change visibility."},{"id":"DC0067","name":"Logon Session Creation","page":"telemetry/DC0067/","kind":"attack_component","category":"Windows and directory audit","description":"Creation of a logon session with account and logon-type context.","collection_focus":"Enable Audit Logon and collect successful session creation on the receiving host; join session/logon IDs rather than only account names.","providers":[{"name":"Windows Security auditing","scope":"Policy-dependent account, object, task and logon records on the host that performs the operation.","source_id":"audit"}],"configuration":["Use a lab-only GPO under Computer Configuration → Windows Settings → Security Settings → Advanced Audit Policy Configuration. Enable the specific subcategory named below.","For object-level auditing, configure a narrow system access control list (SACL) on the test object in addition to policy. Do not audit an entire production directory by default.","Forward Security events from the responsible host or controller; retain subject and target identities, object identifiers, result and original XML. Confirm effective policy with auditpol /get /category:*."],"configuration_example":null,"required_fields":["account","logon_id","logon_type","source_ip"],"example":{"schema":"1200km.telemetry.example.v1","synthetic":true,"timestamp":"2026-09-27T12:00:00Z","telemetry_id":"DC0067","collector":"illustrative-lab-collector","observation":{"account":"LAB\\analyst","logon_id":"0x12345","logon_type":3,"source_ip":"192.0.2.10"}},"example_note":"Project-normalized synthetic JSON, not a native provider log, captured event, attack verdict or validated detection. A parser/adapter is required for a real SIEM. Example names, IPs and values are fictional.","limitations":"A policy checkbox alone does not guarantee an event. Host role, SACL, success/failure selection and audit policy precedence matter. Directory changes may arrive as multiple records.","sources":[{"id":"audit","title":"Microsoft advanced security audit policy","url":"https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-10/security/threat-protection/auditing/advanced-security-audit-policy-settings"},{"id":"ad","title":"Microsoft Audit Directory Service Changes","url":"https://learn.microsoft.com/windows/security/threat-protection/auditing/audit-directory-service-changes"},{"id":"task","title":"Microsoft scheduled-task creation event 4698","url":"https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-10/security/threat-protection/auditing/event-4698"}],"association":"attack_component","anomaly_design":"Per principal, host and object: unusual access/request rates, new principal-object relationships, and changes outside approved administration windows. Control for service accounts and scheduled directory maintenance."},{"id":"DC0088","name":"Logon Session Metadata","page":"telemetry/DC0088/","kind":"attack_component","category":"Host state and inventory","description":"Attributes of existing logon sessions and their association with accounts or hosts.","collection_focus":"Collect supported session inventory and correlate session IDs with authentication, logon and logoff events.","providers":[{"name":"osquery","scope":"Scheduled host-state queries; supported tables and privileges vary by OS. Select a table that actually exposes the required object.","source_id":"osquery"},{"name":"Linux Audit plus inventory snapshots","scope":"Events explain changes; snapshots describe state at collection time.","source_id":"linux"}],"configuration":["Define the inventory query, allowed host set, interval and least-privileged reader. Store a stable asset ID, observation time and collector version.","Keep successive snapshots and calculate additions, removals and changed attributes. Pair state changes with audit events when available.","Export collector health and missed-poll counts so a missing snapshot is not misclassified as a missing asset."],"configuration_example":null,"required_fields":["session_id","account","host","session_type"],"example":{"schema":"1200km.telemetry.example.v1","synthetic":true,"timestamp":"2026-09-27T12:00:00Z","telemetry_id":"DC0088","collector":"illustrative-lab-collector","observation":{"session_id":"lab-session-1","account":"LAB\\analyst","host":"lab-host-1","session_type":"interactive"}},"example_note":"Project-normalized synthetic JSON, not a native provider log, captured event, attack verdict or validated detection. A parser/adapter is required for a real SIEM. Example names, IPs and values are fictional.","limitations":"Snapshots miss short-lived objects and do not identify who caused a change. A generic inventory agent is not guaranteed to expose firmware or kernel-level details.","sources":[{"id":"osquery","title":"osquery scheduled configuration","url":"https://github.com/osquery/osquery/blob/master/docs/wiki/deployment/configuration.md"},{"id":"linux","title":"Linux Audit rule configuration","url":"https://www.man7.org/linux/man-pages/man8/auditctl.8.html"}],"association":"attack_component","anomaly_design":"Compare authorized state snapshots: first-seen drivers/services/modules, unexpected configuration drift and integrity changes. Record collection cadence; absence in a sample is not evidence of deletion."},{"id":"DC0085","name":"Network Traffic Content","page":"telemetry/DC0085/","kind":"attack_component","category":"Network and protocol telemetry","description":"Packet or decoded application-protocol content visible at a network sensor.","collection_focus":"Scope approved packet capture/protocol content collection to the lab flow; retain capture provenance and truncation indicators.","providers":[{"name":"Zeek","scope":"Connection and protocol metadata from traffic visible to the sensor.","source_id":"zeek"},{"name":"Suricata EVE","scope":"Configured flow, alert, DNS, HTTP, TLS and protocol records.","source_id":"suricata"}],"configuration":["Use an authorized lab TAP/SPAN, virtual mirror or gateway interface. Define which traffic crosses it; avoid assuming visibility into every segment.","Enable the required Zeek analyzers or Suricata EVE event types. Export logs with sensor identity, clock synchronization and flow correlation identifiers.","Monitor capture loss, truncation and exporter sampling. Capture payload only with approval and restrictive retention; encryption normally prevents plaintext inspection."],"configuration_example":null,"required_fields":["flow_id","protocol","method","path","payload_excerpt"],"example":{"schema":"1200km.telemetry.example.v1","synthetic":true,"timestamp":"2026-09-27T12:00:00Z","telemetry_id":"DC0085","collector":"illustrative-lab-collector","observation":{"flow_id":"lab-flow-1","protocol":"http","method":"GET","path":"/lab-check","payload_excerpt":"LAB_TELEMETRY_CHECK"}},"example_note":"Project-normalized synthetic JSON, not a native provider log, captured event, attack verdict or validated detection. A parser/adapter is required for a real SIEM. Example names, IPs and values are fictional.","limitations":"Flows are not packet payloads. NAT, asymmetric routes, encryption, missing mirrors and sampling can hide attribution or content. A destination connection alone does not prove malicious intent.","sources":[{"id":"zeek","title":"Zeek protocol and connection logs","url":"https://docs.zeek.org/en/current/reference/logs/index.html"},{"id":"zeek_start","title":"Zeek capture setup","url":"https://docs.zeek.org/en/current/quickstart.html"},{"id":"suricata","title":"Suricata EVE JSON output","url":"https://docs.suricata.io/en/latest/output/eve/eve-json-output.html"}],"association":"attack_component","anomaly_design":"Per source and observation point: connection rate, destination-host/port fan-out, response/failure ratio and previously unseen destinations. Compare equivalent time windows; separate authorized scanners, NAT and sampling effects."},{"id":"DC0032","name":"Process Creation","page":"telemetry/DC0032/","kind":"attack_component","category":"Endpoint activity","description":"Creation of a process with executable, command line, parent and security context.","collection_focus":"Collect Sysmon ProcessCreate (1); preserve ProcessGuid and parent identifiers. Security 4688 is an alternative with separate audit/command-line settings.","providers":[{"name":"Microsoft Sysmon","scope":"Windows event-based collection; enable the event types needed below.","source_id":"sysmon"},{"name":"Linux Audit","scope":"Linux alternative for supported system-call and file events; different semantics and fields.","source_id":"linux"},{"name":"Apple Endpoint Security clients","scope":"macOS alternative where the subscribed event exists; requires an entitled, approved client, not an iOS collector.","source_id":"apple"}],"configuration":["On a disposable Windows host, review the installed Sysmon schema and current configuration; merge scoped event filters into the existing policy rather than replacing it.","Forward Microsoft-Windows-Sysmon/Operational to the lab collector. Preserve event ID, timestamp, computer, process identifiers and the original event.","For Linux or macOS, select the equivalent sensor separately and test its emitted fields; a Windows event ID does not transfer across platforms."],"configuration_example":{"label":"Sysmon filter fragment · merge into the reviewed lab configuration","language":"xml","source_id":"sysmon_config","content":"<EventFiltering>\n  <ProcessCreate onmatch=\"include\">\n    <Image condition=\"is\">C:\\Windows\\System32\\whoami.exe</Image>\n  </ProcessCreate>\n</EventFiltering>","note":"This fragment only selects the named process. It is not a complete production policy. Inspect the installed schema with sysmon64 -s; preserve existing rules, then apply the reviewed complete configuration with sysmon64 -c <configuration-file>."},"required_fields":["process_guid","image","parent_image","command_line","user"],"example":{"schema":"1200km.telemetry.example.v1","synthetic":true,"timestamp":"2026-09-27T12:00:00Z","telemetry_id":"DC0032","collector":"illustrative-lab-collector","observation":{"process_guid":"lab-process-001","image":"C:\\Windows\\System32\\whoami.exe","parent_image":"C:\\Windows\\System32\\cmd.exe","command_line":"whoami","user":"LAB\\analyst"}},"example_note":"Project-normalized synthetic JSON, not a native provider log, captured event, attack verdict or validated detection. A parser/adapter is required for a real SIEM. Example names, IPs and values are fictional.","limitations":"Event filtering and sensor versions change coverage. High-volume image-load and process-access collection needs tuning; endpoint events alone do not establish intent.","sources":[{"id":"sysmon","title":"Microsoft Sysmon events and configuration","url":"https://learn.microsoft.com/en-us/sysinternals/downloads/sysmon"},{"id":"sysmon_config","title":"Microsoft Sysmon configuration files","url":"https://learn.microsoft.com/en-us/windows/security/operating-system-security/sysmon/sysmon-configuration-files"},{"id":"linux","title":"Linux Audit rule configuration","url":"https://www.man7.org/linux/man-pages/man8/auditctl.8.html"},{"id":"apple","title":"Apple Endpoint Security framework for macOS","url":"https://developer.apple.com/documentation/endpointsecurity"},{"id":"process_audit","title":"Microsoft process creation event 4688","url":"https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-10/security/threat-protection/auditing/event-4688"}],"association":"attack_component","anomaly_design":"Per host role and user: rare process/object combinations, bursts of object access or modification, and ordered parent/action sequences. Compare maintenance windows and signed software rollout activity."},{"id":"DC0002","name":"User Account Authentication","page":"telemetry/DC0002/","kind":"attack_component","category":"Identity and SaaS","description":"Authentication attempts and outcomes for a user or workload account.","collection_focus":"Collect successful and failed sign-ins, authentication method, application and conditional-access context; distinguish account validation from session creation.","providers":[{"name":"Microsoft Entra sign-in logs","scope":"Interactive, non-interactive and workload sign-in contexts, subject to tenant features and access.","source_id":"entra"},{"name":"Cloud identity service audit","scope":"Issuer-side credential and administrative events where the service supports them.","source_id":"cloudtrail"},{"name":"Application audit instrumentation","scope":"Application-side use of identities and sessions; design fields without raw tokens.","source_id":"otel"}],"configuration":["Enable/export the required identity sign-in and audit categories from the lab tenant to a protected destination. Document license, role and retention requirements.","Correlate issuance or administrative changes with later sign-ins using non-secret credential IDs, application IDs, user IDs and correlation IDs.","Exclude passwords, bearer tokens, cookies and private keys. Record success, failure, authentication context and application result separately."],"configuration_example":null,"required_fields":["account","application","result","reason","source_ip"],"example":{"schema":"1200km.telemetry.example.v1","synthetic":true,"timestamp":"2026-09-27T12:00:00Z","telemetry_id":"DC0002","collector":"illustrative-lab-collector","observation":{"account":"analyst@example.test","application":"lab-portal","result":"failure","reason":"invalid_credential","source_ip":"192.0.2.10"}},"example_note":"Project-normalized synthetic JSON, not a native provider log, captured event, attack verdict or validated detection. A parser/adapter is required for a real SIEM. Example names, IPs and values are fictional.","limitations":"A token creation record is not evidence of token use; a sign-in is not a complete record of every resource access. Some provider-side data is unavailable to the customer.","sources":[{"id":"entra","title":"Microsoft Entra sign-in logs","url":"https://learn.microsoft.com/en-us/entra/identity/monitoring-health/concept-sign-ins"},{"id":"cloudtrail","title":"AWS CloudTrail event categories","url":"https://docs.aws.amazon.com/awscloudtrail/latest/userguide/cloudtrail-events.html"},{"id":"otel","title":"OpenTelemetry log data model","url":"https://opentelemetry.io/docs/specs/otel/logs/data-model/"}],"association":"attack_component","anomaly_design":"Per identity and application: first-seen clients/resources, changes in authentication failures and session patterns, and unusual permission changes. Separate automation, travel, shared egress and identity-provider policy changes."}],"detection":{"key":"enterprise/T1534","id":"T1534","name":"Internal Spearphishing","domain":"enterprise","platforms":["Linux","macOS","Office Suite","SaaS","Windows"],"environments":["cloud","cloud-hosted-endpoint","onprem","saas"],"source_url":"https://attack.mitre.org/techniques/T1534","technique_page":"techniques/enterprise/T1534/","page":"detections/enterprise/T1534/","status":"guidance_only","counts":{"sigma":0,"atlas_basic":0,"atlas_anomaly":0,"strategies":1,"analytics":5,"live_validated":0},"sigma_rules":[],"atlas_basic":[],"atlas_anomaly":[],"anomaly_types":[],"strategies":[{"id":"DET0054","name":"Internal Spearphishing via Trusted Accounts","url":"https://attack.mitre.org/detectionstrategies/DET0054","stix_id":"x-mitre-detection-strategy--acc27d20-8aad-42ce-b928-6cda3c22e51b","relationship_id":"relationship--6e565457-f873-40b8-aa6a-b1b59f31a47a","description":"","analytics":[{"id":"AN0147","name":"Analytic 0147","guidance":"Sequence of internal email sent from a recently compromised user account (preceded by abnormal logon or device activity), with attachments or links leading to execution or credential harvesting. Defender observes: internal mail delivery to peers with high entropy attachments, followed by click events, process initiation, or credential prompts.","url":"https://attack.mitre.org/detectionstrategies/DET0054#AN0147","platforms":["Windows"],"tuning":[{"field":"TimeWindow","description":"Expected time between internal email and link execution or file dropper"},{"field":"UserContext","description":"Baseline logon locations and device usage for sender accounts"},{"field":"AttachmentEntropyThreshold","description":"Entropy value over which attachment is considered suspicious"}],"log_sources":[{"component_id":"DC0067","component":"Logon Session Creation","name":"WinEventLog:Security","channel":"EventCode=4624, 4648","platforms":["Windows"],"analytic_id":"AN0147","source_url":"https://attack.mitre.org/detectionstrategies/DET0054#AN0147","validation":"upstream_definition_not_locally_validated","component_page":"telemetry/DC0067/"},{"component_id":"DC0002","component":"User Account Authentication","name":"WinEventLog:Security","channel":"EventCode=4625","platforms":["Windows"],"analytic_id":"AN0147","source_url":"https://attack.mitre.org/detectionstrategies/DET0054#AN0147","validation":"upstream_definition_not_locally_validated","component_page":"telemetry/DC0002/"},{"component_id":"DC0088","component":"Logon Session Metadata","name":"WinEventLog:Security","channel":"EventCode=4672","platforms":["Windows"],"analytic_id":"AN0147","source_url":"https://attack.mitre.org/detectionstrategies/DET0054#AN0147","validation":"upstream_definition_not_locally_validated","component_page":"telemetry/DC0088/"},{"component_id":"DC0038","component":"Application Log Content","name":"m365:unified","channel":"SendOnBehalf, MessageSend, ClickThrough, MailItemsAccessed","platforms":["Windows"],"analytic_id":"AN0147","source_url":"https://attack.mitre.org/detectionstrategies/DET0054#AN0147","validation":"upstream_definition_not_locally_validated","component_page":"telemetry/DC0038/"},{"component_id":"DC0032","component":"Process Creation","name":"WinEventLog:Sysmon","channel":"EventCode=1","platforms":["Windows"],"analytic_id":"AN0147","source_url":"https://attack.mitre.org/detectionstrategies/DET0054#AN0147","validation":"upstream_definition_not_locally_validated","component_page":"telemetry/DC0032/"}]},{"id":"AN0148","name":"Analytic 0148","guidance":"Delivery of suspicious internal communication (e.g., Thunderbird, Evolution) using compromised internal accounts. Sequence of: unexpected user activity + mail transfer logs + download or execution of attachments.","url":"https://attack.mitre.org/detectionstrategies/DET0054#AN0148","platforms":["Linux"],"tuning":[{"field":"SubjectLineAnomaly","description":"Deviation from typical internal email subjects"},{"field":"AttachmentType","description":"Executable types allowed or flagged by mail relay"}],"log_sources":[{"component_id":"DC0032","component":"Process Creation","name":"auditd:SYSCALL","channel":"execve","platforms":["Linux"],"analytic_id":"AN0148","source_url":"https://attack.mitre.org/detectionstrategies/DET0054#AN0148","validation":"upstream_definition_not_locally_validated","component_page":"telemetry/DC0032/"},{"component_id":"DC0038","component":"Application Log Content","name":"Application:Mail","channel":"smtpd$.*$: .*from=[.*@internaldomain.com](mailto:.*@internaldomain.com) to=[.*@internaldomain.com](mailto:.*@internaldomain.com)","platforms":["Linux"],"analytic_id":"AN0148","source_url":"https://attack.mitre.org/detectionstrategies/DET0054#AN0148","validation":"upstream_definition_not_locally_validated","component_page":"telemetry/DC0038/"},{"component_id":"DC0085","component":"Network Traffic Content","name":"linux:syslog","channel":"curl|wget|python .*http","platforms":["Linux"],"analytic_id":"AN0148","source_url":"https://attack.mitre.org/detectionstrategies/DET0054#AN0148","validation":"upstream_definition_not_locally_validated","component_page":"telemetry/DC0085/"}]},{"id":"AN0149","name":"Analytic 0149","guidance":"Abnormal Apple Mail use, including internal email relays followed by file execution or script events (e.g., attachments launched via Preview, terminal triggered from Mail.app)","url":"https://attack.mitre.org/detectionstrategies/DET0054#AN0149","platforms":["macOS"],"tuning":[{"field":"ExecutionChainDepth","description":"Number of child processes stemming from Mail.app"},{"field":"MailScriptFlag","description":"Toggle on scripting detection within mail context"}],"log_sources":[{"component_id":"DC0032","component":"Process Creation","name":"macos:unifiedlog","channel":"com.apple.mail.* exec.*","platforms":["macOS"],"analytic_id":"AN0149","source_url":"https://attack.mitre.org/detectionstrategies/DET0054#AN0149","validation":"upstream_definition_not_locally_validated","component_page":"telemetry/DC0032/"},{"component_id":"DC0085","component":"Network Traffic Content","name":"macos:unifiedlog","channel":"curl|osascript.*open location","platforms":["macOS"],"analytic_id":"AN0149","source_url":"https://attack.mitre.org/detectionstrategies/DET0054#AN0149","validation":"upstream_definition_not_locally_validated","component_page":"telemetry/DC0085/"}]},{"id":"AN0150","name":"Analytic 0150","guidance":"Internal spearphishing via SaaS applications (e.g., Slack, Teams, Gmail): message sent from compromised user with attachment or URL, followed by click and credential access behavior.","url":"https://attack.mitre.org/detectionstrategies/DET0054#AN0150","platforms":["SaaS"],"tuning":[{"field":"UserAnomalyThreshold","description":"Volume or timing of messages sent after compromise"},{"field":"FileRiskScoring","description":"Whether SaaS DLP assigns risk scores to attachments"}],"log_sources":[{"component_id":"DC0038","component":"Application Log Content","name":"saas:slack","channel":"file_upload, message_send, message_click","platforms":["SaaS"],"analytic_id":"AN0150","source_url":"https://attack.mitre.org/detectionstrategies/DET0054#AN0150","validation":"upstream_definition_not_locally_validated","component_page":"telemetry/DC0038/"}]},{"id":"AN0151","name":"Analytic 0151","guidance":"Outlook or Word used to forward suspicious internal attachments with macro content. Defender observes attachment forwarding, auto-opening behaviors, or macro prompt interactions.","url":"https://attack.mitre.org/detectionstrategies/DET0054#AN0151","platforms":["Office Suite"],"tuning":[{"field":"MacroExecutionWindow","description":"Timing between mail open and macro invocation"},{"field":"AttachmentNameHeuristics","description":"Patterns of known internal spearphishing lures (e.g., invoice, HR_policy)"}],"log_sources":[{"component_id":"DC0038","component":"Application Log Content","name":"m365:unified","channel":"SendOnBehalf, MessageSend, AttachmentPreviewed","platforms":["Office Suite"],"analytic_id":"AN0151","source_url":"https://attack.mitre.org/detectionstrategies/DET0054#AN0151","validation":"upstream_definition_not_locally_validated","component_page":"telemetry/DC0038/"},{"component_id":"DC0064","component":"Command Execution","name":"WinEventLog:Security","channel":"EventCode=4103, 4104, 4105, 4106","platforms":["Office Suite"],"analytic_id":"AN0151","source_url":"https://attack.mitre.org/detectionstrategies/DET0054#AN0151","validation":"upstream_definition_not_locally_validated","component_page":"telemetry/DC0064/"}]}]}],"telemetry_references":[{"id":"DC0038","name":"Application Log Content","tag":"Application Log Content","page":"telemetry/DC0038/","kind":"attack_component"},{"id":"DC0064","name":"Command Execution","tag":"Command Execution","page":"telemetry/DC0064/","kind":"attack_component"},{"id":"DC0067","name":"Logon Session Creation","tag":"Logon Session Creation","page":"telemetry/DC0067/","kind":"attack_component"},{"id":"DC0088","name":"Logon Session Metadata","tag":"Logon Session Metadata","page":"telemetry/DC0088/","kind":"attack_component"},{"id":"DC0085","name":"Network Traffic Content","tag":"Network Traffic Content","page":"telemetry/DC0085/","kind":"attack_component"},{"id":"DC0032","name":"Process Creation","tag":"Process Creation","page":"telemetry/DC0032/","kind":"attack_component"},{"id":"DC0002","name":"User Account Authentication","tag":"User Account Authentication","page":"telemetry/DC0002/","kind":"attack_component"}],"visibility":"source_mapped","visibility_note":null,"tool_references":[],"related_parent":null,"article_url":"https://1200km.com/articles/read/2026/2026-04-20-malicious-activity-as-a-statistical-signal-a-detection-engineering-analysis-of-anomaly-bas-90df8b6dea12/","validation":{"source_join":"exact_ids","sigma_yaml":"parsed","backend_compilation":"not_run","live_telemetry":"not_run","detection_execution":"not_run"}},"tools":[],"software":[{"id":"S9030","name":"SameCoin","url":"https://attack.mitre.org/software/S9030","kind":"malware","description":"[SameCoin](https://attack.mitre.org/software/S9030) can send its Setup.exe file as an attachment to other addresses in the same compromised organization.(Citation: Check Point Wirte NOV 2024)","relationship_id":"relationship--454f19f9-c9bf-427b-9ba1-f1c57ce48768","references":[{"source_name":"Check Point Wirte NOV 2024","description":"Check Point. (2024, November 12). Hamas-affiliated Threat Actor WIRTE Continues its Middle East Operations and Moves to Disruptive Activity. Retrieved April 20, 2026.","url":"https://research.checkpoint.com/2024/hamas-affiliated-threat-actor-expands-to-disruptive-activity/"}]}],"actors":[{"id":"G0047","name":"Gamaredon Group","url":"https://attack.mitre.org/groups/G0047","kind":"intrusion-set","description":"[Gamaredon Group](https://attack.mitre.org/groups/G0047) has used an Outlook VBA module on infected systems to send phishing emails with malicious attachments to other employees within the organization.(Citation: ESET Gamaredon June 2020)","relationship_id":"relationship--109bbda3-f97a-4067-81d6-ed635f251282","references":[{"source_name":"ESET Gamaredon June 2020","description":"Boutin, J. (2020, June 11). Gamaredon group grows its game. Retrieved June 16, 2020.","url":"https://www.welivesecurity.com/2020/06/11/gamaredon-group-grows-its-game/"}]},{"id":"G0065","name":"Leviathan","url":"https://attack.mitre.org/groups/G0065","kind":"intrusion-set","description":"[Leviathan](https://attack.mitre.org/groups/G0065) has conducted internal spearphishing within the victim's environment for lateral movement.(Citation: CISA AA21-200A APT40 July 2021)","relationship_id":"relationship--c00b008a-5f2c-4837-811b-21193b70b4ae","references":[{"source_name":"CISA AA21-200A APT40 July 2021","description":"CISA. (2021, July 19). (AA21-200A) Joint Cybersecurity Advisory – Tactics, Techniques, and Procedures of Indicted APT40 Actors Associated with China’s MSS Hainan State Security Department. Retrieved August 12, 2021.","url":"https://us-cert.cisa.gov/ncas/alerts/aa21-200a"}]},{"id":"G0069","name":"MuddyWater","url":"https://attack.mitre.org/groups/G0069","kind":"intrusion-set","description":"[MuddyWater](https://attack.mitre.org/groups/G0069) has used compromised mailboxes within target organizations to send spearphishing emails.(Citation: FalconFeeds_Iran_Mar2026)   ","relationship_id":"relationship--1d4ecf70-a573-4a8d-889d-c0f296399977","references":[{"source_name":"FalconFeeds_Iran_Mar2026","description":"FalconFeeds.io. (2026, March 5). The Digital Redoubt: Iran’s National Information Network and the Asymmetry of Modern Cyber Conflict. Retrieved March 9, 2026.","url":"https://falconfeeds.io/blogs/the-digital-redoubt-irans-national-information-network-cyber-conflict"}]},{"id":"G0094","name":"Kimsuky","url":"https://attack.mitre.org/groups/G0094","kind":"intrusion-set","description":"[Kimsuky](https://attack.mitre.org/groups/G0094) has sent internal spearphishing emails for lateral movement after stealing victim information.(Citation: KISA Operation Muzabi)","relationship_id":"relationship--31f9cd5d-bfb6-4764-a724-8e8f131099d1","references":[{"source_name":"KISA Operation Muzabi","description":"KISA. (2021). Phishing Target Reconnaissance and Attack Resource Analysis Operation Muzabi. Retrieved March 8, 2024.","url":"https://web.archive.org/web/20220328121326/https://boho.or.kr/filedownload.do?attach_file_seq=2695&attach_file_id=EpF2695.pdf"}]},{"id":"G0099","name":"APT-C-36","url":"https://attack.mitre.org/groups/G0099","kind":"intrusion-set","description":"[APT-C-36](https://attack.mitre.org/groups/G0099) has used a compromised account to send a phishing email to an address likely used and monitored by the IT team within the same targeted organization.(Citation: Zscaler BlindEagle DEC 2025)","relationship_id":"relationship--96ebe8fc-85be-4652-b6dd-24f318b83129","references":[{"source_name":"Zscaler BlindEagle DEC 2025","description":"Pellegrino, G. (2025, December 16). BlindEagle Targets Colombian Government Agency with Caminho and DCRAT. Retrieved April 16, 2026.","url":"https://www.zscaler.com/blogs/security-research/blindeagle-targets-colombian-government-agency-caminho-and-dcrat"}]},{"id":"G1001","name":"HEXANE","url":"https://attack.mitre.org/groups/G1001","kind":"intrusion-set","description":"[HEXANE](https://attack.mitre.org/groups/G1001) has conducted internal spearphishing attacks against executives, HR, and IT personnel to gain information and access.(Citation: SecureWorks August 2019)","relationship_id":"relationship--f6a8aba6-d711-45bd-a99e-7a12b8c72ae0","references":[{"source_name":"SecureWorks August 2019","description":"SecureWorks 2019, August 27 LYCEUM Takes Center Stage in Middle East Campaign Retrieved. 2019/11/19 ","url":"https://www.secureworks.com/blog/lyceum-takes-center-stage-in-middle-east-campaign"}]},{"id":"G1059","name":"NIMBUS MANTICORE","url":"https://attack.mitre.org/groups/G1059","kind":"intrusion-set","description":"[NIMBUS MANTICORE](https://attack.mitre.org/groups/G1059) has conducted internal spearphishing attacks against IT staff and administrators.(Citation: Mandiant_UNC1549TTPsTools_Nov2025)   ","relationship_id":"relationship--6ef76744-096e-495e-b96a-1fdb5d6e9108","references":[{"source_name":"Mandiant_UNC1549TTPsTools_Nov2025","description":"El-Banna, M., et al. (2025, November 17). Frontline Intelligence: Analysis of UNC1549 TTPs, Custom Tools, and Malware Targeting the Aerospace and Defense Ecosystem. Retrieved September 28, 2026.","url":"https://cloud.google.com/blog/topics/threat-intelligence/analysis-of-unc1549-ttps-targeting-aerospace-defense"}]}],"mitigations":[],"candidates":[],"simulation":{"atomic_status":"no_atomic_candidate","lab_execution":"not_run","browser_attack_runner":false,"prerequisites":"Use disposable lab hosts and test accounts, explicit target allowlists, a clean snapshot, bounded egress and a restore plan. Review every candidate and dependency before any execution.","scenario":null},"validation":{"source_identity":"checked_against_pinned_source","relationship_join":"exact_ids_no_inheritance","page_contract":"automated_checks_required","sensor_capture":"not_run","detection_backend":"not_run","adversary_simulation":"not_run","independent_incident_fact_check":"not_performed"},"technique_links":{"T1684.001":"/ttp-simulation/techniques/enterprise/T1684.001/","T1566.001":"/ttp-simulation/techniques/enterprise/T1566.001/","T1566.002":"/ttp-simulation/techniques/enterprise/T1566.002/","T1056":"/ttp-simulation/techniques/enterprise/T1056/","T1534":"/ttp-simulation/techniques/enterprise/T1534/"},"synthetic":{"schema":"1200km.ttp.collection-fixture.v1","synthetic":true,"technique_key":"enterprise/T1534","purpose":"Collection/parser contract exercise, NOT a positive example or detection of this TTP.","events":[{"schema":"1200km.telemetry.example.v1","synthetic":true,"timestamp":"2026-09-27T12:00:00Z","telemetry_id":"DC0038","collector":"illustrative-lab-collector","observation":{"service":"lab-portal","action":"export_requested","actor":"lab-reader","record_count":3,"result":"authorized"}},{"schema":"1200km.telemetry.example.v1","synthetic":true,"timestamp":"2026-09-27T12:00:00Z","telemetry_id":"DC0064","collector":"illustrative-lab-collector","observation":{"interpreter":"/bin/sh","command_line":"printf LAB_TELEMETRY_CHECK","actor_uid":1000,"session_id":"lab-session-1"}},{"schema":"1200km.telemetry.example.v1","synthetic":true,"timestamp":"2026-09-27T12:00:00Z","telemetry_id":"DC0067","collector":"illustrative-lab-collector","observation":{"account":"LAB\\analyst","logon_id":"0x12345","logon_type":3,"source_ip":"192.0.2.10"}},{"schema":"1200km.telemetry.example.v1","synthetic":true,"timestamp":"2026-09-27T12:00:00Z","telemetry_id":"DC0088","collector":"illustrative-lab-collector","observation":{"session_id":"lab-session-1","account":"LAB\\analyst","host":"lab-host-1","session_type":"interactive"}},{"schema":"1200km.telemetry.example.v1","synthetic":true,"timestamp":"2026-09-27T12:00:00Z","telemetry_id":"DC0085","collector":"illustrative-lab-collector","observation":{"flow_id":"lab-flow-1","protocol":"http","method":"GET","path":"/lab-check","payload_excerpt":"LAB_TELEMETRY_CHECK"}},{"schema":"1200km.telemetry.example.v1","synthetic":true,"timestamp":"2026-09-27T12:00:00Z","telemetry_id":"DC0032","collector":"illustrative-lab-collector","observation":{"process_guid":"lab-process-001","image":"C:\\Windows\\System32\\whoami.exe","parent_image":"C:\\Windows\\System32\\cmd.exe","command_line":"whoami","user":"LAB\\analyst"}},{"schema":"1200km.telemetry.example.v1","synthetic":true,"timestamp":"2026-09-27T12:00:00Z","telemetry_id":"DC0002","collector":"illustrative-lab-collector","observation":{"account":"analyst@example.test","application":"lab-portal","result":"failure","reason":"invalid_credential","source_ip":"192.0.2.10"}}]}}