Resubmissions

11-11-2024 09:35

241111-lkh6qaxdmp 1

11-11-2024 09:18

241111-k9wyfawnfs 10

General

  • Target

    sapphire_vegas_pro_159753.rar

  • Size

    381.0MB

  • Sample

    241111-k9wyfawnfs

  • MD5

    4bca4a8701135905f8e74291c7a01048

  • SHA1

    fa428d2827cc17d488ea94f65b1bb314d1b2cc0e

  • SHA256

    0ef3b7e7f6dc377f3f8dedb00b6263a194af8d316c391d18d3393611a9bcef9e

  • SHA512

    04918900ca146afb02047d9354c77ace50a50452ca66bfa5d4a50afced4e9305e38c0d3b884677d30a1c60825c8a9dca158465b7c277f9dc9021df5c055756a4

  • SSDEEP

    6291456:0wRUo9Bh8WwCdJFdxjQnOGiSGZLNcVasKTIJRplqsUHOd46g8eIp85uDtJEe+/lp:X9BbwC3FonDANcVasKKRplbUH86TW8MW

Malware Config

Targets

    • Target

      sapphire_vegas_pro_159753.rar

    • Size

      381.0MB

    • MD5

      4bca4a8701135905f8e74291c7a01048

    • SHA1

      fa428d2827cc17d488ea94f65b1bb314d1b2cc0e

    • SHA256

      0ef3b7e7f6dc377f3f8dedb00b6263a194af8d316c391d18d3393611a9bcef9e

    • SHA512

      04918900ca146afb02047d9354c77ace50a50452ca66bfa5d4a50afced4e9305e38c0d3b884677d30a1c60825c8a9dca158465b7c277f9dc9021df5c055756a4

    • SSDEEP

      6291456:0wRUo9Bh8WwCdJFdxjQnOGiSGZLNcVasKTIJRplqsUHOd46g8eIp85uDtJEe+/lp:X9BbwC3FonDANcVasKKRplbUH86TW8MW

    • DcRat

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

    • Dcrat family

    • Modifies WinLogon for persistence

    • Process spawned unexpected child process

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

    • DCRat payload

    • 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

    • 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

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Legitimate hosting services abused for malware hosting/C2

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks