General

  • Target

    3ef4fd34810ecaa7bd99bcafe337b84410e7d8b24e86e16d75de2dddbd6edd7f

  • Size

    2.7MB

  • Sample

    240511-zpxrkagg3v

  • MD5

    41ce39b06345d0e333702bde3eeafd15

  • SHA1

    946d0563c69d50892c9ea0af97d1b463f5f1369b

  • SHA256

    3ef4fd34810ecaa7bd99bcafe337b84410e7d8b24e86e16d75de2dddbd6edd7f

  • SHA512

    506ff8b5aed91f0d7aed4325f557aa9becc41f4c9221bbe495a474f01d52c69071a52c3962649fa8a591018c29e8f33c513682a816b86282158469b3b7322d21

  • SSDEEP

    49152:qH64y2XDuLlIY14o9/yDzr1xJ8XbRrC9mWvR08Yv7yP3GcY:qHfE5Ad8Xd295UmGc

Malware Config

Targets

    • Target

      3ef4fd34810ecaa7bd99bcafe337b84410e7d8b24e86e16d75de2dddbd6edd7f

    • Size

      2.7MB

    • MD5

      41ce39b06345d0e333702bde3eeafd15

    • SHA1

      946d0563c69d50892c9ea0af97d1b463f5f1369b

    • SHA256

      3ef4fd34810ecaa7bd99bcafe337b84410e7d8b24e86e16d75de2dddbd6edd7f

    • SHA512

      506ff8b5aed91f0d7aed4325f557aa9becc41f4c9221bbe495a474f01d52c69071a52c3962649fa8a591018c29e8f33c513682a816b86282158469b3b7322d21

    • SSDEEP

      49152:qH64y2XDuLlIY14o9/yDzr1xJ8XbRrC9mWvR08Yv7yP3GcY:qHfE5Ad8Xd295UmGc

    • 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.

    • UAC bypass

    • DCRat payload

      Detects payload of DCRat, commonly dropped by NSIS installers.

    • Detects executables packed with SmartAssembly

    • 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

MITRE ATT&CK Enterprise v15

Tasks