General

  • Target
    2ecf13b2ffdec170c8c741b8bc4a20c5.exe
  • Size 3.5MB
  • Sample250218-3llrnstm17
  • SHA256 70c558209d7201e690991be17a01c6ef7f5b14775f2cfb288f0abafa43187fe2
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Targets

    • Target
      2ecf13b2ffdec170c8c741b8bc4a20c5.exe
    • Size 3.5MB
    • SHA256 70c558209d7201e690991be17a01c6ef7f5b14775f2cfb288f0abafa43187fe2
    • MD5 SHA1 SHA512 SSDEEP
    • 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.

    • Disables Task Manager via registry modification

    • 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

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks