General
- Target 587e1d2473fea9284918bfbcf9897de2.bin
- Size 2.1MB
- Sample240702-bvdnwaveqj
- SHA256 60924d921adaad6a21dc5ec1d2138a13d868b4fab7338341f6b80b2b12441bd1
Malware Config
Targets
-
- Target c729d915ac96ff25722e76303e87e67c8ed51f776992724fa89fedbb77fc8a28.exe
- Size 2.5MB
- SHA256 c729d915ac96ff25722e76303e87e67c8ed51f776992724fa89fedbb77fc8a28
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
Reads user/profile data of web browsers
Infostealers often target stored browser data, which can include saved credentials etc.
Adds Run key to start application
Checks whether UAC is enabled
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