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General

  • Target

    1954887cb3505d283c86d6e3379bb120.exe

  • Size

    1.2MB

  • Sample

    241002-y145cavbmj

  • MD5

    1954887cb3505d283c86d6e3379bb120

  • SHA1

    ed20edd050b68986325e059240c6165736865db1

  • SHA256

    18851c5ea81a956ba94aa1df173349b05bb45865fe09bec6bf7e069ce6100f2e

  • SHA512

    753a025ef237078c3e64c2795002038d5cfdba8ac9d74d368131031249a645ff99b0c992fff059315ed036068c56650ffab293424ac02c33366d422e8ea2752e

  • SSDEEP

    24576:N8iAvkij/9iCaMtOT41VtCP3J0QbFUoKbScbIf4v7CUet7GKf3VL/iab:NJaYCRX1VcPujXWqKJ

Malware Config

Targets

    • Target

      1954887cb3505d283c86d6e3379bb120.exe

    • Size

      1.2MB

    • MD5

      1954887cb3505d283c86d6e3379bb120

    • SHA1

      ed20edd050b68986325e059240c6165736865db1

    • SHA256

      18851c5ea81a956ba94aa1df173349b05bb45865fe09bec6bf7e069ce6100f2e

    • SHA512

      753a025ef237078c3e64c2795002038d5cfdba8ac9d74d368131031249a645ff99b0c992fff059315ed036068c56650ffab293424ac02c33366d422e8ea2752e

    • SSDEEP

      24576:N8iAvkij/9iCaMtOT41VtCP3J0QbFUoKbScbIf4v7CUet7GKf3VL/iab:NJaYCRX1VcPujXWqKJ

    • 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.

    • 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

    • 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

MITRE ATT&CK Enterprise v15

Tasks