General
- Target 3d79293d371d3393d83f0d6205c35263baa3618a6f3ccba4fcefbee999d4a714.exe
- Size 16.0MB
- Sample250114-e1k7payngl
- SHA256 3d79293d371d3393d83f0d6205c35263baa3618a6f3ccba4fcefbee999d4a714
Score
10/10
Malware Config
Targets
-
- Target 3d79293d371d3393d83f0d6205c35263baa3618a6f3ccba4fcefbee999d4a714.exe
- Size 16.0MB
- SHA256 3d79293d371d3393d83f0d6205c35263baa3618a6f3ccba4fcefbee999d4a714
Score10/10DcRat
DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
Dcrat family
Modifies WinLogon for persistence
Process spawned unexpected child process
This typically indicates the parent process was compromised via an exploit or macro.
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
Checks computer location settings
Looks up country code configured in the registry, likely geofence.
Executes dropped EXE
Loads dropped DLL
Adds Run key to start application
Drops file in System32 directory
MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Scheduled Task/Job
1Scheduled Task
1