HackTool - LittleCorporal Generated Maldoc Injection — Sigma Rule

Rule metadata and linked tags

Author: Christian Burkard (Nextron Systems). Source status: test; severity: high. Source dates: 2021-08-09 / 2023-11-28.

{
  "category": "process_access",
  "product": "windows"
}

Pinned original Sigma rule · Detection Rule License 1.1

Source SHA-256: cc0428babe13f74ce65bb41d88d8fc04796a7799ef1626daf78fa60e22e5e3cf

Detection logic

Original source YAML. Source-tag agreement is not proof of complete semantic coverage. This rule has not been compiled for a SIEM backend or validated against live telemetry here.

title: HackTool - LittleCorporal Generated Maldoc Injection
id: 7bdde3bf-2a42-4c39-aa31-a92b3e17afac
status: test
description: Detects the process injection of a LittleCorporal generated Maldoc.
references:
    - https://github.com/connormcgarr/LittleCorporal
author: Christian Burkard (Nextron Systems)
date: 2021-08-09
modified: 2023-11-28
tags:
    - attack.execution
    - attack.privilege-escalation
    - attack.stealth
    - attack.t1204.002
    - attack.t1055.003
logsource:
    category: process_access
    product: windows
detection:
    selection:
        SourceImage|endswith: '\winword.exe'
        CallTrace|contains|all:
            - ':\Windows\Microsoft.NET\Framework64\v2.'
            - 'UNKNOWN'
    condition: selection
falsepositives:
    - Unknown
level: high

Original YAML and metadata in JSON

False positives

• Unknown

Source references

• https://github.com/connormcgarr/LittleCorporal