Overview

overview

8

Static

static

5

Vannia Zero.exe

windows10-2004-x64

3

Vannia Zero.exe

windows11-ltsc_2024-x64

8

Analysis

  • max time kernel
    150s
  • max time network
    137s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    02/07/2026, 19:43

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General

  • Target
    Vannia Zero.exe
  • Size 7.9MB
  • Sample260702-ye8weadv3y
  • SHA256 1da84eaafed62ac98de16e30c0e209d0ba6f9b5a7f6f73d4658eadef7613f1b8
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
8/10
adwarediscoverypersistenceransomwarespyware

Malware Config

Signatures

  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    persistence
  • Enumerates connected drives 3 TTPs 2 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

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

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

    discovery
  • Checks SCSI registry key(s) 3 TTPs 62 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
    adwarespyware
  • Modifies registry class 38 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 35 IoCs
  • Suspicious use of FindShellTrayWindow 54 IoCs
  • Suspicious use of SendNotifyMessage 46 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence
  • Uses Volume Shadow Copy WMI provider

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\Vannia Zero.exe
    "C:\Users\Admin\AppData\Local\Temp\Vannia Zero.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Enumerates system info in registry
    • Suspicious use of AdjustPrivilegeToken
    PID:5036
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:5772
    • C:\Windows\explorer.exe
      explorer.exe /LOADSAVEDWINDOWS
      2⤵
      • Boot or Logon Autostart Execution: Active Setup
      • Enumerates connected drives
      • Checks SCSI registry key(s)
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      PID:2604
  • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
    "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:1884
  • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
    "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:5164

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        prep_Activatable Class_Hermes_perf.cache
        • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\TempState\prep_Activatable Class_Hermes_perf.cache
        • Size 607B
        • SHA256 be6b74e52e5eef1f1c27c0976bf3bf1bfa99958c00bbef2898a602f691be6dae
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        memory/1884-39-0x000001C202E70000-0x000001C202F70000-memory.dmp
        Download

        memory/1884-38-0x000001C202A30000-0x000001C202A50000-memory.dmp
        Download

        memory/1884-41-0x000001C202C90000-0x000001C202CB0000-memory.dmp
        Download

        memory/1884-74-0x000001C214710000-0x000001C214730000-memory.dmp
        Download

        memory/1884-31-0x000001C2001E0000-0x000001C2002E0000-memory.dmp
        Download

        memory/2604-195-0x000000000E790000-0x000000000E8FC000-memory.dmp
        Download

        memory/5036-4-0x0000000009510000-0x00000000095A2000-memory.dmp
        Download

        memory/5036-8-0x0000000006E90000-0x0000000006EA2000-memory.dmp
        Download

        memory/5036-9-0x0000000074892000-0x0000000074893000-memory.dmp
        Download

        memory/5036-10-0x0000000074880000-0x000000007503C000-memory.dmp
        Download

        memory/5036-7-0x0000000074880000-0x000000007503C000-memory.dmp
        Download

        memory/5036-6-0x000000000A870000-0x000000000AA82000-memory.dmp
        Download

        memory/5036-5-0x0000000005790000-0x000000000579A000-memory.dmp
        Download

        memory/5036-0-0x0000000074892000-0x0000000074893000-memory.dmp
        Download

        memory/5036-3-0x0000000074880000-0x000000007503C000-memory.dmp
        Download

        memory/5036-2-0x00000000098B0000-0x0000000009E6A000-memory.dmp
        Download

        memory/5036-1-0x0000000000A30000-0x0000000001226000-memory.dmp
        Download

        memory/5036-197-0x0000000074880000-0x000000007503C000-memory.dmp
        Download