Analytics BIOC Medium

A suspicious executable with multiple file extensions was created

An executable file with multiple extensions was created. This technique is frequently used to disguise malware as user content.

Module:
Platform Analytics
Data source:
XDR Agent with eXtended Threat Hunting (XTH)
ATT&CK tactics: Execution (TA0002) Defense Evasion (TA0005)
ATT&CK techniques: User Execution: Malicious File (T1204.002) Masquerading: Double File Extension (T1036.007)
Attacker's goals:

Bypassing defenses and/or tricking the user into executing a file that seems like a trustworthy file.

Investigative actions:

Investigate the actor process and the file created to determine if it was used for legitimate purposes or malicious activity.

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