Stormous Ransomware

Description Summary

~185 victims; pro-Russian; STMX_GhostLocker RaaS with GhostSec.

Threat Actor

Pro-Russian; member of 'The Five Families' collective.

Technical Indicators

Encryption Extension
.stormous / .F5 / .ghost
Encryption Algorithm
AES-256 + RSA (Go); StormCry (Python) + GhostLocker 2.0 (Golang)
Ransom Note Name
Not publicly reported
Targeted Industries
Technology, Business services
First Seen
2021 (STMX_GhostLocker RaaS with GhostSec, March 2024)
Last Seen
Active (~185 victims)
Geographical Location
US, Spain, UAE, France, Brazil

MITRE ATT&CK Matrix

Tactic TTP Technique Name
Impact x 2 T1486 Data Encrypted for Impact
T1490 Inhibit System Recovery
Exfiltration x 1 T1567 Exfiltration Over Web Service (leak site)
Initial Access x 2 T1190 Exploit Public-Facing Application
T1078 Valid Accounts