General
- Target Chernobyl.exe
- Size 338KB
- Sample240302-yefvmagf21
- SHA256 30acb23863a1043c7210c8fb75236fce5111bef305c6574e518e9d0e50d740cf
Score
10/10
Malware Config
Targets
-
- Target Chernobyl.exe
- Size 338KB
- SHA256 30acb23863a1043c7210c8fb75236fce5111bef305c6574e518e9d0e50d740cf
Score10/10Modifies WinLogon for persistence
Suspicious use of NtCreateProcessExOtherParentProcess
UAC bypass
Disables RegEdit via registry modification
Disables Task Manager via registry modification
Checks computer location settings
Looks up country code configured in the registry, likely geofence.
Modifies file permissions
Checks whether UAC is enabled
Modifies WinLogon
Drops file in System32 directory
MITRE ATT&CK Enterprise v15
Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
2Winlogon Helper DLL
2Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1File and Directory Permissions Modification
1Impair Defenses
1Disable or Modify Tools
1Modify Registry
4