General

  • Target

    NursultanCrack.exe

  • Size

    1.9MB

  • Sample

    240721-17m6hszdmk

  • MD5

    9c49f8ab036331a19ab63f9aff82db38

  • SHA1

    a27f11d48f1428b8efb5384f779f355271cc8877

  • SHA256

    c50ff535a4d6f888019f7865b319658fc35fd9c3ce5734308821641407d91df9

  • SHA512

    2a61a2bf0bfff8c84f2ba5065b87563edd36b4a8ab34e2354f01e46a9ab7d19677cda9b686f95598921de7c2480da53a5e76965f01733e875033208adf9bfecd

  • SSDEEP

    24576:h2G/nvxW3WHj0PhetvJ2pv6zvifbzgs4dGnO1F4R8rDX6ZrnHkBseAa+s:hbA3ZUo6buPaARUDInHkBHR

Malware Config

Targets

    • Target

      NursultanCrack.exe

    • Size

      1.9MB

    • MD5

      9c49f8ab036331a19ab63f9aff82db38

    • SHA1

      a27f11d48f1428b8efb5384f779f355271cc8877

    • SHA256

      c50ff535a4d6f888019f7865b319658fc35fd9c3ce5734308821641407d91df9

    • SHA512

      2a61a2bf0bfff8c84f2ba5065b87563edd36b4a8ab34e2354f01e46a9ab7d19677cda9b686f95598921de7c2480da53a5e76965f01733e875033208adf9bfecd

    • SSDEEP

      24576:h2G/nvxW3WHj0PhetvJ2pv6zvifbzgs4dGnO1F4R8rDX6ZrnHkBseAa+s:hbA3ZUo6buPaARUDInHkBHR

    • DcRat

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

    • Modifies WinLogon for persistence

    • 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.

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks