General

  • Target

    4ddb7797555a3ef167e8f92a38af954448bb303a319335146a97038292a663afN.exe

  • Size

    1.7MB

  • Sample

    241129-bj8d4ssrhk

  • MD5

    2da02537301e59b652c96c905ec3e250

  • SHA1

    4c870b03f24d82b4e84ce6fd9a13ed53aac35373

  • SHA256

    4ddb7797555a3ef167e8f92a38af954448bb303a319335146a97038292a663af

  • SHA512

    57e0c44dc636c775c01ac2416689277bd597d1a225e4dc00c6c34b1069aa275cb9f2f35771894f0d76d749a581013f028a948bde6829c91afe6f1957083b8199

  • SSDEEP

    24576:t3QwuLyEbVoCtPreIjNLoN/VNGeSQDx1m17zezKOkCzeJGFUJ:tgwuuEpdDLNwVMeXDL0fdSzAG

Malware Config

Targets

    • Target

      4ddb7797555a3ef167e8f92a38af954448bb303a319335146a97038292a663afN.exe

    • Size

      1.7MB

    • MD5

      2da02537301e59b652c96c905ec3e250

    • SHA1

      4c870b03f24d82b4e84ce6fd9a13ed53aac35373

    • SHA256

      4ddb7797555a3ef167e8f92a38af954448bb303a319335146a97038292a663af

    • SHA512

      57e0c44dc636c775c01ac2416689277bd597d1a225e4dc00c6c34b1069aa275cb9f2f35771894f0d76d749a581013f028a948bde6829c91afe6f1957083b8199

    • 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