Analytics BIOC Low
✕

Microsoft Office injects code into a process

An attacker may inject payloads into processes via Microsoft Office. While legitimate in certain cases, code injection can also be used in malicious ways.

Module:
Platform Analytics
Data source:
XDR Agent
ATT&CK tactics: Initial Access (TA0001) Defense Evasion (TA0005)
ATT&CK techniques: Phishing: Spearphishing Attachment (T1566.001) Process Injection (T1055)
Detector tags: Injection Analytics
Attacker's goals:

An attacker attempts to gain code execution via a phishing document. Attackers may inject code into processes to evade process-based defenses, as well as possibly elevate privileges.

Investigative actions:

Check the source of the document (received by mail or loaded locally). Check whether the injecting process is benign and if this was a desired behavior as part of its normal execution flow.

Test period:
N/A (single event)
Deduplication:
1 Day
5 variations:
  • Unsigned Microsoft Office injects code into a process High (parent: Low) Adds Masquerading: Match Legitimate Resource Name or Location (T1036.005)
  • Microsoft Office injects code into a process to a non-standard PE section High (parent: Low)
  • Microsoft Office injects code into a process to an undeclared memory page Medium (parent: Low)
  • Microsoft Office injects code into a process from an unsigned process Medium (parent: Low)
  • Microsoft Office macro-enabled spreadsheet (XLSM) injects code into a process Medium (parent: Low)