General

  • Target

    c355f38ee63673e3fa88f735bb3665cce31d960484b62d4fb592a692091d7e63

  • Size

    1.3MB

  • Sample

    241221-vvlh9stqat

  • MD5

    c404461ae893f2b2204ffa1172f71fb3

  • SHA1

    356dd751dfe6c80ddd5da67b3edce71add99ccff

  • SHA256

    c355f38ee63673e3fa88f735bb3665cce31d960484b62d4fb592a692091d7e63

  • SHA512

    272380f5630526cf41be8eb24a565575a7612b2f78a54e64913325e29cda71131b6940d9653c864929199ffe23c85c5d75326d90b933368dcfee96ba5594b6f6

  • SSDEEP

    24576:U2G/nvxW3Ww0t6TnzGmVBDh4+aknuRRZJND0gFJ4rD/IjC:UbA30GnzV/q+DnsXg

Malware Config

Targets

    • Target

      c355f38ee63673e3fa88f735bb3665cce31d960484b62d4fb592a692091d7e63

    • Size

      1.3MB

    • MD5

      c404461ae893f2b2204ffa1172f71fb3

    • SHA1

      356dd751dfe6c80ddd5da67b3edce71add99ccff

    • SHA256

      c355f38ee63673e3fa88f735bb3665cce31d960484b62d4fb592a692091d7e63

    • SHA512

      272380f5630526cf41be8eb24a565575a7612b2f78a54e64913325e29cda71131b6940d9653c864929199ffe23c85c5d75326d90b933368dcfee96ba5594b6f6

    • SSDEEP

      24576:U2G/nvxW3Ww0t6TnzGmVBDh4+aknuRRZJND0gFJ4rD/IjC:UbA30GnzV/q+DnsXg

    • 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.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Legitimate hosting services abused for malware hosting/C2

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks