General

  • Target
    ad7507c90821598ae3ed6e8b6c3fdb36.exe
  • Size 1.3MB
  • Sample220120-qjy8rsabdk
  • SHA256 785ebbdf0f15d1bb1fd3bbe1fb5a3486dead09dae463c91368653510c3814aee
  • MD5 SHA1 SHA512

Malware Config

Targets

    • Target
      ad7507c90821598ae3ed6e8b6c3fdb36.exe
    • Size 1.3MB
    • SHA256 785ebbdf0f15d1bb1fd3bbe1fb5a3486dead09dae463c91368653510c3814aee
    • MD5 SHA1 SHA512
    • DcRat

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

    • Process spawned unexpected child process

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

    • suricata: ET MALWARE DCRAT Activity (GET)

      suricata: ET MALWARE DCRAT Activity (GET)

    • Executes dropped EXE

    • Sets service image path in registry

    • Checks computer location settings

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

    • Loads dropped DLL

    • 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 v6

Tasks