General
- Target fd669e1388907d25b8039b5ae22804a6b77a96d139c8f8bbff50c15c9968bfa2.zip
- Size 2.7MB
- Sample260828-byjpasel8z
- SHA256 986a18d9c95f23cd9893c57ffb59620742f122783f54bcd78af03f66a3c6ad08
- MD5 2ac99a499022021745ebd1ef21d10e2c
- SHA1 364e2a889c50cc1c62b77de32686acd2693b055a
- SHA512 42b80cb7f2d88b67ae26f11afe689b2f25a1cb619a7c740ee2d68cb126556931855b2ff6be13a67625a3a74b4e032a218509a5e7521a420d4c548985ebd4aea4
- SSDEEP 49152:50pVEbmt1haAp5SaqYQH9YO+OFDnHPJVoY11I718k3yl45hBfYU:apVEqXMAl6HptvJVoY1188wNPFD
- TLSH T1B2D5334B9B2F2B6CE1A70270D65C69B73C2B6E60B3906F0FD52844EF575189E11AB01F
- MD5 SHA1 SHA512 SSDEEP TLSH
Behavioral task
behavioral1
Sample
fd669e1388907d25b8039b5ae22804a6b77a96d139c8f8bbff50c15c9968bfa2.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
fd669e1388907d25b8039b5ae22804a6b77a96d139c8f8bbff50c15c9968bfa2.exe
Resource
win11ltsc2024-20260709-en
Malware Config
Targets
-
- Target fd669e1388907d25b8039b5ae22804a6b77a96d139c8f8bbff50c15c9968bfa2.exe
- Size 3.3MB
- SHA256 fd669e1388907d25b8039b5ae22804a6b77a96d139c8f8bbff50c15c9968bfa2
- MD5 1bd88bbb0c82349303aa60c470c8b51e
- SHA1 55888979b9436e79d41aeb0b763de01ed99b85db
- SHA512 b78c333246b63419bec60237782b7a32a0b1dfd1fa5ee8f27d83f11dceb14685cef39309e2496e4408e488b30df73f02be8bdc2a21c9f45a48b7bd1ef3584807
- SSDEEP 98304:Ubrsyw9Am+MZm8Ib2v8kViYY/jq9uvScoCJVQ2:U/sd9F+qVIyv8kV/bujDQ2
- TLSH T1CFF5EF027E44CA12F0191233C2FF494447B9AC112AA6E72B7DB9336D55223D3BE5DADB
- MD5 SHA1 SHA512 SSDEEP TLSH
-
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.
-
Checks computer location settings
Looks up country code configured in the registry, likely geofence.
-
Executes dropped EXE
-
Adds Run key to start application
-
Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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Executes a VBScript file via the Windows Script Host.
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SmartAssembly .NET packer
Detects SmartAssembly .NET packer.
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
2Visual Basic
1Windows Command Shell
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
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1