General

  • Target
    x24e41cdfba11f86d4093bdeee52ebded1b3d8ae38497ed9938d2d247edad6702.exe
  • Size 1.7MB
  • Sample260528-bc2yraev2y
  • SHA256 24e41cdfba11f86d4093bdeee52ebded1b3d8ae38497ed9938d2d247edad6702
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      x24e41cdfba11f86d4093bdeee52ebded1b3d8ae38497ed9938d2d247edad6702.exe
    • Size 1.7MB
    • SHA256 24e41cdfba11f86d4093bdeee52ebded1b3d8ae38497ed9938d2d247edad6702
    • 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.

    • 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

    • SmartAssembly .NET packer

      Detects SmartAssembly .NET packer.

MITRE ATT&CK Enterprise v16

Tasks