initial_access_execution_via_microsoft_office_process.yml

name: Execution via Microsoft Office process
id: a10ebe66-1b55-4005-a374-840f1e2933a3
version: 1.0.1
description:
  Identifies the execution of the file dropped by Microsoft Office process.
labels:
  tactic.id: TA0001
  tactic.name: Initial Access
  tactic.ref: https://attack.mitre.org/tactics/TA0001/
  technique.id: T1566
  technique.name: Phishing
  technique.ref: https://attack.mitre.org/techniques/T1566/
  subtechnique.id: T1566.001
  subtechnique.name: Spearphishing Attachment
  subtechnique.ref: https://attack.mitre.org/techniques/T1566/001/

condition: >
  sequence
  maxspan 1h
    |create_file and (file.extension iin executable_extensions or file.is_exec) and ps.name iin msoffice_binaries| by file.path
    |spawn_process and ps.name iin msoffice_binaries| by ps.child.exe

min-engine-version: 2.4.0