General

  • Target

    4abd3fdc568bb1f27720659825994c87f22381b8611c94761472145196dd369aN.exe

  • Size

    1.7MB

  • Sample

    250119-w9yb2s1lcj

  • MD5

    251bc53b2e5b51a8605bbc3cc214d220

  • SHA1

    ea2c82feaebf9a3ee294094be2c8ce4190e6592b

  • SHA256

    4abd3fdc568bb1f27720659825994c87f22381b8611c94761472145196dd369a

  • SHA512

    0209113fa0a0418213da29ecf564cfb9a9ea27c17cb6582affdcab72be58635753f1d2b895395815672e432b330e974a0ac2cf77b01afcd368d2c8451c37a97e

  • SSDEEP

    24576:t3QwuLyEbVoCtPreIjNLoN/VNGeSQDx1m17zezKOkCzeJGFUJ:tgwuuEpdDLNwVMeXDL0fdSzAG

Malware Config

Targets

    • Target

      4abd3fdc568bb1f27720659825994c87f22381b8611c94761472145196dd369aN.exe

    • Size

      1.7MB

    • MD5

      251bc53b2e5b51a8605bbc3cc214d220

    • SHA1

      ea2c82feaebf9a3ee294094be2c8ce4190e6592b

    • SHA256

      4abd3fdc568bb1f27720659825994c87f22381b8611c94761472145196dd369a

    • SHA512

      0209113fa0a0418213da29ecf564cfb9a9ea27c17cb6582affdcab72be58635753f1d2b895395815672e432b330e974a0ac2cf77b01afcd368d2c8451c37a97e

    • SSDEEP

      24576:t3QwuLyEbVoCtPreIjNLoN/VNGeSQDx1m17zezKOkCzeJGFUJ:tgwuuEpdDLNwVMeXDL0fdSzAG

    • DcRat

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

    • Dcrat family

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • 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.

    • Drops file in Drivers directory

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

MITRE ATT&CK Enterprise v15

Tasks