Analysis

  • max time kernel
    149s
  • max time network
    141s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    23/03/2026, 16:19

General

  • Target
    MV ZENKEN MARU.exe
  • Size 989KB
  • Sample260323-tsk92sfz9z
  • SHA256 2804023cb811e89cd1fc6bec5614a689929a3c23f68939142176c7b2fbdd4b9f
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • vipkeylogger

Credentials

Signatures

  • VIPKeylogger

    VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.

  • Vipkeylogger family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Drops startup file 1 IoCs
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • SmartAssembly .NET packer 1 IoCs

    Detects SmartAssembly .NET packer.

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\MV ZENKEN MARU.exe
    "C:\Users\Admin\AppData\Local\Temp\MV ZENKEN MARU.exe"
    1⤵
    • Drops startup file
    • Accesses Microsoft Outlook profiles
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • outlook_office_path
    • outlook_win_path
    PID:2720
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\MV ZENKEN MARU.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5484
  • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:6024

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        __PSScriptPolicyTest_xnkz5imf.u3h.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_xnkz5imf.u3h.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512 TLSH

        memory/2720-1-0x00000000056F0000-0x0000000005C96000-memory.dmp

        memory/2720-2-0x0000000005140000-0x00000000051D2000-memory.dmp

        memory/2720-3-0x00000000052D0000-0x00000000052E0000-memory.dmp

        memory/2720-4-0x00000000051E0000-0x00000000051EA000-memory.dmp

        memory/2720-5-0x0000000005470000-0x000000000550C000-memory.dmp

        memory/2720-6-0x0000000005440000-0x0000000005454000-memory.dmp

        memory/2720-7-0x00000000052D0000-0x00000000052E0000-memory.dmp

        memory/2720-8-0x0000000008310000-0x00000000083EA000-memory.dmp

        memory/2720-13-0x00000000064C0000-0x0000000006508000-memory.dmp

        memory/2720-81-0x0000000001040000-0x0000000001090000-memory.dmp

        memory/2720-80-0x000000000B440000-0x000000000B602000-memory.dmp

        memory/2720-63-0x000000000AC60000-0x000000000ACE2000-memory.dmp

        memory/2720-0-0x0000000000580000-0x000000000067E000-memory.dmp

        memory/5484-54-0x00000000075C0000-0x00000000075D5000-memory.dmp

        memory/5484-60-0x00000000026A0000-0x00000000026B9000-memory.dmp

        memory/5484-22-0x0000000005AB0000-0x0000000005B16000-memory.dmp

        memory/5484-18-0x0000000005260000-0x0000000005282000-memory.dmp

        memory/5484-27-0x0000000005C20000-0x0000000005F77000-memory.dmp

        memory/5484-14-0x0000000002900000-0x0000000002910000-memory.dmp

        memory/5484-35-0x0000000006020000-0x000000000603E000-memory.dmp

        memory/5484-36-0x00000000060D0000-0x000000000611C000-memory.dmp

        memory/5484-15-0x00000000026E0000-0x0000000002716000-memory.dmp

        memory/5484-38-0x0000000006FE0000-0x0000000007014000-memory.dmp

        memory/5484-39-0x000000006F160000-0x000000006F1AC000-memory.dmp

        memory/5484-46-0x0000000007220000-0x000000000723E000-memory.dmp

        memory/5484-47-0x0000000007240000-0x00000000072E4000-memory.dmp

        memory/5484-48-0x00000000079C0000-0x000000000803A000-memory.dmp

        memory/5484-49-0x0000000007370000-0x000000000738A000-memory.dmp

        memory/5484-50-0x00000000073F0000-0x00000000073FA000-memory.dmp

        memory/5484-51-0x0000000007600000-0x0000000007696000-memory.dmp

        memory/5484-52-0x0000000007580000-0x0000000007591000-memory.dmp

        memory/5484-53-0x00000000075B0000-0x00000000075BE000-memory.dmp

        memory/5484-17-0x0000000005310000-0x000000000593A000-memory.dmp

        memory/5484-55-0x00000000076C0000-0x00000000076DA000-memory.dmp

        memory/5484-56-0x00000000076B0000-0x00000000076B8000-memory.dmp

        memory/5484-19-0x0000000005940000-0x00000000059A6000-memory.dmp

        memory/5484-59-0x0000000000B60000-0x0000000000D0C000-memory.dmp

        memory/5484-61-0x0000000005000000-0x00000000050EA000-memory.dmp

        memory/5484-62-0x0000000005B20000-0x0000000005B38000-memory.dmp

        memory/5484-16-0x0000000002900000-0x0000000002910000-memory.dmp

        memory/6024-64-0x000002CB44230000-0x000002CB4423C000-memory.dmp

        memory/6024-65-0x000002CB442C0000-0x000002CB442D2000-memory.dmp

        memory/6024-37-0x000002CB445F0000-0x000002CB44636000-memory.dmp

        memory/6024-34-0x000002CB444F0000-0x000002CB44512000-memory.dmp