General

  • Target

    Desktop.exe

  • Size

    2.9MB

  • Sample

    240619-t5m96stdqg

  • MD5

    11862c23ae0f425237282c0847b02d3e

  • SHA1

    f7f675722e98ce688a51b19ead781ebb1e8263e2

  • SHA256

    d9312c235d45c023d09e60464da291fe362ce2618b4205e19edc52625652fae9

  • SHA512

    eb4134e0d59de34c8dd637a6e20036d59ce43b3fbb01b9f2370727af26595297c00cf168b88310c76c8ebc08cee72692d962bcd6cafed4461854fe3405a0100b

  • SSDEEP

    49152:lOtT55Y+fUPSCH697MdC72xfml5OKYjjZI5ZyEwMTN7Sd5VGyzGfSK12n232gnL/:lOtTtWIzlQjja21MlSTVGGqr13mgnT

Malware Config

Targets

    • Target

      Desktop.exe

    • Size

      2.9MB

    • MD5

      11862c23ae0f425237282c0847b02d3e

    • SHA1

      f7f675722e98ce688a51b19ead781ebb1e8263e2

    • SHA256

      d9312c235d45c023d09e60464da291fe362ce2618b4205e19edc52625652fae9

    • SHA512

      eb4134e0d59de34c8dd637a6e20036d59ce43b3fbb01b9f2370727af26595297c00cf168b88310c76c8ebc08cee72692d962bcd6cafed4461854fe3405a0100b

    • SSDEEP

      49152:lOtT55Y+fUPSCH697MdC72xfml5OKYjjZI5ZyEwMTN7Sd5VGyzGfSK12n232gnL/:lOtTtWIzlQjja21MlSTVGGqr13mgnT

    • DcRat

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

    • Modifies WinLogon for persistence

    • 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.

    • Checks computer location settings

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

    • Executes dropped EXE

    • 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

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks