General
- Target START.exe
- Size 43.7MB
- Sample261108-rkdtwsys7r
- SHA256 08aa4060631117560cf52573bf8dd0c6aa2840a1ffbc281c1c7c39d381021a17
Malware Config
Targets
-
- Target START.exe
- Size 43.7MB
- SHA256 08aa4060631117560cf52573bf8dd0c6aa2840a1ffbc281c1c7c39d381021a17
Score10/10DCRat payload
Detects payload of DCRat, commonly dropped by NSIS installers.
Family: DcRat
DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
Modifies WinLogon for persistence
Process spawned unexpected child process
This typically indicates the parent process was compromised via an exploit or macro.
UAC bypass
Command and Scripting Interpreter: PowerShell
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
Disables Task Manager via registry modification
Downloads MZ/PE file
Checks computer location settings
Looks up country code configured in the registry, likely geofence.
Executes dropped EXE
Checks whether UAC is enabled
Executes a VBScript file via the Windows Script Host.
SmartAssembly .NET packer
Detects SmartAssembly .NET packer.
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
3PowerShell
1Visual Basic
1Windows Command Shell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
1Winlogon Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
1Winlogon Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Impair Defenses
1Disable or Modify Tools
1Modify Registry
4