General

  • Target

    277b0b668d401e4fcabdc18fbdde331b0db64f9b62bfa4b76b83b6179f3a57d2

  • Size

    1.9MB

  • Sample

    241104-zhgrrsxdlr

  • MD5

    967181542acac77f5b13f46542e84812

  • SHA1

    09fbf9cfb636459cc4d54308b5b1c91d32a29f22

  • SHA256

    277b0b668d401e4fcabdc18fbdde331b0db64f9b62bfa4b76b83b6179f3a57d2

  • SHA512

    323023582fcc14c30aca827db68bb91204a5e6dc894bb1228370a3c925bb28559778f09a0b3d4581d462921630cede3ac1cd4c864357ee5b4928698e5bbdf082

  • SSDEEP

    49152:LcC3djqo2xuELnaWpofrYR0nhJLVxIkpAUfKcwucQW1:LcC3djqo2PLaWyPrYkpsc6QW1

Malware Config

Targets

    • Target

      277b0b668d401e4fcabdc18fbdde331b0db64f9b62bfa4b76b83b6179f3a57d2

    • Size

      1.9MB

    • MD5

      967181542acac77f5b13f46542e84812

    • SHA1

      09fbf9cfb636459cc4d54308b5b1c91d32a29f22

    • SHA256

      277b0b668d401e4fcabdc18fbdde331b0db64f9b62bfa4b76b83b6179f3a57d2

    • SHA512

      323023582fcc14c30aca827db68bb91204a5e6dc894bb1228370a3c925bb28559778f09a0b3d4581d462921630cede3ac1cd4c864357ee5b4928698e5bbdf082

    • SSDEEP

      49152:LcC3djqo2xuELnaWpofrYR0nhJLVxIkpAUfKcwucQW1:LcC3djqo2PLaWyPrYkpsc6QW1

    • DcRat

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

    • Dcrat family

    • Modifies WinLogon for persistence

    • Process spawned unexpected child process

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

    • 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

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Adds Run key to start application

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks