General
- Target https://store.steampowered.com/
- Sample260604-1hwflagv7j
Malware Config
Targets
-
- Target https://store.steampowered.com/
Score9/10Renames multiple (6132) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
Badlisted process makes network request
Network request originating from process or tool commonly abused by malware.
Downloads MZ/PE file
Uses browser remote debugging
Can be used control the browser and steal sensitive information such as credentials and session cookies.
Executes dropped EXE
Loads dropped DLL
Adds Run key to start application
Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
Contacts third-party web service commonly abused for C2
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
Drops file in System32 directory
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Modify Authentication Process
1Privilege Escalation
Access Token Manipulation
1Create Process with Token
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Access Token Manipulation
1Create Process with Token
1Modify Authentication Process
1Modify Registry
2Subvert Trust Controls
3Install Root Certificate
2SIP and Trust Provider Hijacking
1