General
- Target 00db2c26608e0e750b9262587d68d19dfd37e45b185a22b9438fb309ceb15cd9.exe
- Size 2.7MB
- Sample240629-bcs1vazerm
- SHA256 00db2c26608e0e750b9262587d68d19dfd37e45b185a22b9438fb309ceb15cd9
Malware Config
Targets
-
- Target 00db2c26608e0e750b9262587d68d19dfd37e45b185a22b9438fb309ceb15cd9.exe
- Size 2.7MB
- SHA256 00db2c26608e0e750b9262587d68d19dfd37e45b185a22b9438fb309ceb15cd9
Score10/10DcRat
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
DCRat payload
Detects payload of DCRat, commonly dropped by NSIS installers.
Command and Scripting Interpreter: PowerShell
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
Checks computer location settings
Looks up country code configured in the registry, likely geofence.
Executes dropped EXE
Adds Run key to start application
Checks whether UAC is enabled
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Scheduled Task/Job
1Scheduled Task
1