General

  • Target

    d2196c5c358f43597a318e032bfd158b9c0ef318be6a2323acd2508bd6d23dc5.exe

  • Size

    1.0MB

  • Sample

    241201-p29xjs1ras

  • MD5

    aea3d4caf079e299eea0b385a4dbbedd

  • SHA1

    74b93127a847e2e2f2af6baa6b4ad6431c02ac63

  • SHA256

    d2196c5c358f43597a318e032bfd158b9c0ef318be6a2323acd2508bd6d23dc5

  • SHA512

    8df72070ac43ee5b3e0ba8e958b0b5132229be9c6b1ed07bc0d26cbaeb27199fda53ca0cbe80c39f6af878db84d06206f59cb9bf97b64dc61b7f47237e1edbd9

  • SSDEEP

    12288:sP2N7DeTXX5qeIeLsdxv/xedn6IwyMbfhC6hQs3uUbG6ddD7HFPMmXgAff+75LMF:sP28z7IeYxvJeKHdZH3OacV3d9CE4

Malware Config

Targets

    • Target

      d2196c5c358f43597a318e032bfd158b9c0ef318be6a2323acd2508bd6d23dc5.exe

    • Size

      1.0MB

    • MD5

      aea3d4caf079e299eea0b385a4dbbedd

    • SHA1

      74b93127a847e2e2f2af6baa6b4ad6431c02ac63

    • SHA256

      d2196c5c358f43597a318e032bfd158b9c0ef318be6a2323acd2508bd6d23dc5

    • SHA512

      8df72070ac43ee5b3e0ba8e958b0b5132229be9c6b1ed07bc0d26cbaeb27199fda53ca0cbe80c39f6af878db84d06206f59cb9bf97b64dc61b7f47237e1edbd9

    • SSDEEP

      12288:sP2N7DeTXX5qeIeLsdxv/xedn6IwyMbfhC6hQs3uUbG6ddD7HFPMmXgAff+75LMF:sP28z7IeYxvJeKHdZH3OacV3d9CE4

    • DcRat

      DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

    • Dcrat family

    • 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

MITRE ATT&CK Enterprise v15

Tasks