Analytics BIOC Low

Microsoft Office process spawns a commonly abused process

Microsoft Office process spawns a commonly abused process with an uncommon command.

Module:
Platform Analytics
Data source:
XDR Agent
ATT&CK tactics: Execution (TA0002) Initial Access (TA0001)
ATT&CK techniques: User Execution (T1204) Phishing: Spearphishing Attachment (T1566.001)
Attacker's goals:

An attacker attempts to gain code execution via a phishing document.

Investigative actions:

Check the source of the document (received by mail or loaded locally). Investigate the child processes for malicious activity and network connections to an external host.

Test period:
N/A (single event)
Deduplication:
1 Day