General

  • Target

    NursultanCrack.exe

  • Size

    1.7MB

  • Sample

    241130-qbdbbsynfl

  • MD5

    062e3b4cd1878667da10f08bdd209dd6

  • SHA1

    c6d785f9df07b202f2db280016c5773092dd111a

  • SHA256

    2ebcbc7ecacf1e3398613aa73dc2bff59b0bc0cf2724b68a20fe071a054c2d80

  • SHA512

    6e598e330cb1c9db77edca1ea51d8aaa1939278a3ba480e2eb922a8b0f17b28a768150dbdcf660ae51468967dd447580bc68bf428148ea1ccecec85c67719fd6

  • SSDEEP

    49152:3BIjEaf0EC0bEvDC3B6Bo2UPjAgAecjJl/ud:xQEwvAC3oUPjuRlmd

Malware Config

Targets

    • Target

      NursultanCrack.exe

    • Size

      1.7MB

    • MD5

      062e3b4cd1878667da10f08bdd209dd6

    • SHA1

      c6d785f9df07b202f2db280016c5773092dd111a

    • SHA256

      2ebcbc7ecacf1e3398613aa73dc2bff59b0bc0cf2724b68a20fe071a054c2d80

    • SHA512

      6e598e330cb1c9db77edca1ea51d8aaa1939278a3ba480e2eb922a8b0f17b28a768150dbdcf660ae51468967dd447580bc68bf428148ea1ccecec85c67719fd6

    • SSDEEP

      49152:3BIjEaf0EC0bEvDC3B6Bo2UPjAgAecjJl/ud:xQEwvAC3oUPjuRlmd

    • 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