General

  • Target

    c73993ff9d747b12a905e1d6eed572d1500bb3c8bda0f707f94abb6ef35ffbff.exe

  • Size

    1.7MB

  • Sample

    250125-s497wa1kam

  • MD5

    15f0518755f69a45d4bbee4601eca73e

  • SHA1

    880798aa715fdf93d1554ec4e8859ea25cb79d48

  • SHA256

    c73993ff9d747b12a905e1d6eed572d1500bb3c8bda0f707f94abb6ef35ffbff

  • SHA512

    ee28371ff0e4b4c55e66e1c2797b78ba0c6e349c7f74cd4f35aba3c4ec694cbdd8e2490285dfe5067209ac23a986948a453304e623ca32f0b37777c96774207f

  • SSDEEP

    49152:z+gYXZTD1VXUqzX7VwjvMoh1IFyuyigWnMzm6sDBKvK:eTHUxUoh1IF9gl2d

Malware Config

Targets

    • Target

      c73993ff9d747b12a905e1d6eed572d1500bb3c8bda0f707f94abb6ef35ffbff.exe

    • Size

      1.7MB

    • MD5

      15f0518755f69a45d4bbee4601eca73e

    • SHA1

      880798aa715fdf93d1554ec4e8859ea25cb79d48

    • SHA256

      c73993ff9d747b12a905e1d6eed572d1500bb3c8bda0f707f94abb6ef35ffbff

    • SHA512

      ee28371ff0e4b4c55e66e1c2797b78ba0c6e349c7f74cd4f35aba3c4ec694cbdd8e2490285dfe5067209ac23a986948a453304e623ca32f0b37777c96774207f

    • SSDEEP

      49152:z+gYXZTD1VXUqzX7VwjvMoh1IFyuyigWnMzm6sDBKvK:eTHUxUoh1IF9gl2d

    • 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.

    • 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.

    • Drops file in Drivers directory

    • Checks computer location settings

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

    • Executes dropped EXE

MITRE ATT&CK Enterprise v15

Tasks