Overview

overview

8

Static

static

3

AppVIsvSub...64.dll

windows10-2004-x64

8

AppVIsvSub...64.dll

windows11-ltsc_2024-x64

8

Full_Unbox...df.exe

windows10-2004-x64

7

Full_Unbox...df.exe

windows11-ltsc_2024-x64

7

Analysis

  • max time kernel
    148s
  • max time network
    157s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260706-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260706-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    09/07/2026, 08:41

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General

  • Target
    AppVIsvSubsystems64.dll
  • Size 101.2MB
  • Sample260709-klvepsft9j
  • SHA256 85a5a329104262896fa9305876b5a2c5f87fd27bc5ea585e46314718989063fc
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
8/10
adwarepersistenceransomwarespywarestealer

Malware Config

Signatures

  • Badlisted process makes network request 1 IoCs

    Network request originating from process or tool commonly abused by malware.

  • 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
  • Drops startup file 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

    spywarestealer
  • Enumerates connected drives 3 TTPs 2 IoCs

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

  • Suspicious use of NtCreateThreadExHideFromDebugger 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

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

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

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
    adwarespyware
  • Modifies registry class 38 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 41 IoCs
  • Suspicious use of FindShellTrayWindow 54 IoCs
  • Suspicious use of SendNotifyMessage 42 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:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\AppVIsvSubsystems64.dll,#1
    1⤵
    • Badlisted process makes network request
    • Drops startup file
    • Suspicious use of NtCreateThreadExHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:1556
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:1848
    • 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:6052
  • 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:3376
  • 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:2644

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        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 599B
        • SHA256 b536a3dae9ea5c69081f0491eed829e3b57e32401fdf49a63031bcd6b20e6fdb
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        Tmp33F7.tmp
        • Path C:\Users\Admin\AppData\Local\Temp\Tmp33F7.tmp
        • Size 2KB
        • SHA256 39855ad817a4c0a0b6ee542e3ab573f4f1933636ab664062dff91faacf4343d3
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        memory/1556-247-0x00007FF8C1230000-0x00007FF8C1BD4000-memory.dmp
        Download

        memory/1556-260-0x00007FF8C1230000-0x00007FF8C1BD4000-memory.dmp
        Download

        memory/1556-2-0x00007FF8E1960000-0x00007FF8E1D01000-memory.dmp
        Download

        memory/1556-235-0x00007FF8C13BF000-0x00007FF8C13C0000-memory.dmp
        Download

        memory/1556-236-0x00007FF8C1230000-0x00007FF8C1BD4000-memory.dmp
        Download

        memory/1556-237-0x00007FF8C1230000-0x00007FF8C1BD4000-memory.dmp
        Download

        memory/1556-239-0x000001F4E3F50000-0x000001F4E3FA4000-memory.dmp
        Download

        memory/1556-238-0x00007FF8D45B0000-0x00007FF8D45CD000-memory.dmp
        Download

        memory/1556-240-0x000001F4E3DD0000-0x000001F4E3DE8000-memory.dmp
        Download

        memory/1556-241-0x000001F4E4010000-0x000001F4E405C000-memory.dmp
        Download

        memory/1556-242-0x00007FF8C1230000-0x00007FF8C1BD4000-memory.dmp
        Download

        memory/1556-3-0x000001F4E3BB0000-0x000001F4E3C21000-memory.dmp
        Download

        memory/1556-229-0x000001F4E23E0000-0x000001F4E23FE000-memory.dmp
        Download

        memory/1556-245-0x00007FF8C1230000-0x00007FF8C1BD4000-memory.dmp
        Download

        memory/1556-243-0x00007FF8C1230000-0x00007FF8C1BD4000-memory.dmp
        Download

        memory/1556-256-0x00007FF8C1230000-0x00007FF8C1BD4000-memory.dmp
        Download

        memory/1556-257-0x00007FF8C1230000-0x00007FF8C1BD4000-memory.dmp
        Download

        memory/1556-258-0x000001F4E20C0000-0x000001F4E20C1000-memory.dmp
        Download

        memory/1556-259-0x00007FF8C1230000-0x00007FF8C1BD4000-memory.dmp
        Download

        memory/1556-0-0x000001F4E20C0000-0x000001F4E20C1000-memory.dmp
        Download

        memory/1556-1-0x00007FF8E4060000-0x00007FF8E42C3000-memory.dmp
        Download

        memory/3376-282-0x00000286001E0000-0x00000286002E0000-memory.dmp
        Download

        memory/3376-328-0x0000028614290000-0x00000286142B0000-memory.dmp
        Download

        memory/3376-314-0x0000028603E10000-0x0000028603E30000-memory.dmp
        Download

        memory/3376-294-0x0000028603A50000-0x0000028603A70000-memory.dmp
        Download

        memory/3376-295-0x0000028613E70000-0x0000028613F70000-memory.dmp
        Download

        memory/6052-448-0x000000000F6A0000-0x000000000F720000-memory.dmp
        Download