General

  • Target

    25fac6b0d6075d63bbb1727f93a99bf3fc6ce9a298fde4a5e58944e21b4bc0a7.exe

  • Size

    3.2MB

  • Sample

    241219-chpfaaskcz

  • MD5

    8c1a813f52ed5c9f746cc2baea9b421c

  • SHA1

    923f06dd79705fe0957b6efa9b47f8a726e80b08

  • SHA256

    25fac6b0d6075d63bbb1727f93a99bf3fc6ce9a298fde4a5e58944e21b4bc0a7

  • SHA512

    b524b7766912011f5ff17bf8b7b4b96abed8a77b113a27eb4ef9ba2fa840946b5443e68204e1e2e45ed9a78c2c681ad12c5a1324bcafee63d297f8dfe8cddb57

  • SSDEEP

    49152:oD+WhPI+P05YhHbpHP1qcdhymFKN/1cCLKtrp8qotx/8jwwpO5:k+WhPIq0iHPEA1W/19LGrBoP9wpO5

Malware Config

Targets

    • Target

      25fac6b0d6075d63bbb1727f93a99bf3fc6ce9a298fde4a5e58944e21b4bc0a7.exe

    • Size

      3.2MB

    • MD5

      8c1a813f52ed5c9f746cc2baea9b421c

    • SHA1

      923f06dd79705fe0957b6efa9b47f8a726e80b08

    • SHA256

      25fac6b0d6075d63bbb1727f93a99bf3fc6ce9a298fde4a5e58944e21b4bc0a7

    • SHA512

      b524b7766912011f5ff17bf8b7b4b96abed8a77b113a27eb4ef9ba2fa840946b5443e68204e1e2e45ed9a78c2c681ad12c5a1324bcafee63d297f8dfe8cddb57

    • SSDEEP

      49152:oD+WhPI+P05YhHbpHP1qcdhymFKN/1cCLKtrp8qotx/8jwwpO5:k+WhPIq0iHPEA1W/19LGrBoP9wpO5

    • 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.

    • 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.

    • Drops file in Drivers directory

    • Checks computer location settings

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

    • Executes dropped EXE

    • Checks whether UAC is enabled

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks