General

  • Target

    1554ae8f1316eadf351b3e6f5e7fc9e6.exe

  • Size

    3.2MB

  • Sample

    241030-2r72esshpj

  • MD5

    1554ae8f1316eadf351b3e6f5e7fc9e6

  • SHA1

    1fe722cd6f6e6739a2566c920931bc2f057ac55c

  • SHA256

    5bdd5d335f1dce7bff7ad597aa12c5c36d2831b58d4a1a37650fab7b070c6e23

  • SHA512

    56bf054fa85f534a5b5896a21b4b511c564ffbb0a8b1685054c521d09a9122c848c5818d6518092d33da4c02b79dea6622ef7fd48ab22271522a9d7878a2883d

  • SSDEEP

    49152:UbA30LfTBVuy0VtNUBslYt04P0GliFkO6Uo67iX0bCLuI9+E8Dt:Ub/7nL0jCB6q0goyUonuI998Dt

Malware Config

Targets

    • Target

      1554ae8f1316eadf351b3e6f5e7fc9e6.exe

    • Size

      3.2MB

    • MD5

      1554ae8f1316eadf351b3e6f5e7fc9e6

    • SHA1

      1fe722cd6f6e6739a2566c920931bc2f057ac55c

    • SHA256

      5bdd5d335f1dce7bff7ad597aa12c5c36d2831b58d4a1a37650fab7b070c6e23

    • SHA512

      56bf054fa85f534a5b5896a21b4b511c564ffbb0a8b1685054c521d09a9122c848c5818d6518092d33da4c02b79dea6622ef7fd48ab22271522a9d7878a2883d

    • SSDEEP

      49152:UbA30LfTBVuy0VtNUBslYt04P0GliFkO6Uo67iX0bCLuI9+E8Dt:Ub/7nL0jCB6q0goyUonuI998Dt

    • 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.

    • UAC bypass

    • 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

    • Checks whether UAC is enabled

MITRE ATT&CK Enterprise v15

Tasks