Certutil pfx parsing

Synopsis

Field	Value
Activation Period	14 Days
Training Period	30 Days
Test Period	N/A (single event)
Deduplication Period	1 Day
Required Data	XDR Agent
Detector Tags	Active Directory Certificate Services Analytics
ATT&CK Tactic	Collection (TA0009)
ATT&CK Technique	Data from Local System (T1005)
Severity	Low

Description

Certutil was used to parse a pfx certificate file.

Attacker's Goals

Attackers want to check pfx details. If details suffice, the correct certificate can be used for authentication, persistence or NTLM extraction.

Investigative actions

• Check if the pfx parsing is legitimate for the user (Testing, IT, etc.).
• Follow further actions done by the user (ex. authentication using certificates).