General

  • Target

    959800fa97270fcdfc8dd6795a1040a0972a8be32820950ff79551b7a1800915.exe

  • Size

    3.0MB

  • Sample

    240601-k2gtjsha76

  • MD5

    b0a2f53baa478b541ddab184cb0b3820

  • SHA1

    4a7c64dad7d8e9b468f81af6112d2c7fec3d79e7

  • SHA256

    959800fa97270fcdfc8dd6795a1040a0972a8be32820950ff79551b7a1800915

  • SHA512

    8b31cacd4eddbf829da987bb65a64a9cef4de31a5762031ed5b542f18bf91e43f1883a90f2fb82fb5c669c332a9facb28b9f2609aca7dc4af3b35036ac5d1a5d

  • SSDEEP

    49152:AZ2fRPDpkR3/hESpjo4uLDI3KoSPq3cXtFvOUcx3twYvr0G56/FBwzpTZoKh:07ZJ89LDSKrq3iGnnw+1YXw9OK

Malware Config

Targets

    • Target

      959800fa97270fcdfc8dd6795a1040a0972a8be32820950ff79551b7a1800915.exe

    • Size

      3.0MB

    • MD5

      b0a2f53baa478b541ddab184cb0b3820

    • SHA1

      4a7c64dad7d8e9b468f81af6112d2c7fec3d79e7

    • SHA256

      959800fa97270fcdfc8dd6795a1040a0972a8be32820950ff79551b7a1800915

    • SHA512

      8b31cacd4eddbf829da987bb65a64a9cef4de31a5762031ed5b542f18bf91e43f1883a90f2fb82fb5c669c332a9facb28b9f2609aca7dc4af3b35036ac5d1a5d

    • SSDEEP

      49152:AZ2fRPDpkR3/hESpjo4uLDI3KoSPq3cXtFvOUcx3twYvr0G56/FBwzpTZoKh:07ZJ89LDSKrq3iGnnw+1YXw9OK

    • DcRat

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

    • 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

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks