Analysis

  • max time kernel
    443s
  • max time network
    1166s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/02/2024, 14:32

General

  • Target
    wwwroot/_content/Saturn.Backend/css/bootstrap/bootstrap.min.css
  • Size 158KB
  • Sample240225-rwk3caef5y
  • SHA256 4a221530681185d5e32924c875d5fb9a1f486ce5d573041673bfe9e274ba0ffd
  • MD5 SHA1 SHA512 SSDEEP
Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Modifies registry class 1 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\wwwroot\_content\Saturn.Backend\css\bootstrap\bootstrap.min.css
    1⤵
    • Checks computer location settings
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:3932
    • C:\Windows\system32\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\wwwroot\_content\Saturn.Backend\css\bootstrap\bootstrap.min.css
      2⤵
      • Opens file in notepad (likely ransom note)
      PID:2204

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads