Overview

overview

8

Static

static

5

ApiClient.dll

windows10-2004-x64

1

ApiClient.dll

windows11-ltsc_2024-x64

6

ApiClient_arm64.dll

windows10-2004-x64

1

ApiClient_arm64.dll

windows11-ltsc_2024-x64

8

AppVCatalog.dll

windows10-2004-x64

1

AppVCatalog.dll

windows11-ltsc_2024-x64

1

AppVFileSy...ta.dll

windows10-2004-x64

1

AppVFileSy...ta.dll

windows11-ltsc_2024-x64

1

AppVIntegration.dll

windows10-2004-x64

1

AppVIntegration.dll

windows11-ltsc_2024-x64

6

AppVIsvApi.dll

windows10-2004-x64

1

AppVIsvApi.dll

windows11-ltsc_2024-x64

1

AppVIsvStr...er.dll

windows10-2004-x64

1

AppVIsvStr...er.dll

windows11-ltsc_2024-x64

1

AppVIsvSub...er.dll

windows10-2004-x64

1

AppVIsvSub...er.dll

windows11-ltsc_2024-x64

6

AppVIsvVir...on.dll

windows10-2004-x64

1

AppVIsvVir...on.dll

windows11-ltsc_2024-x64

6

AppVManifest.dll

windows10-2004-x64

1

AppVManifest.dll

windows11-ltsc_2024-x64

1

AppVOrchestration.dll

windows10-2004-x64

1

AppVOrchestration.dll

windows11-ltsc_2024-x64

1

AppVPolicy.dll

windows10-2004-x64

1

AppVPolicy.dll

windows11-ltsc_2024-x64

6

AppVScripting.dll

windows10-2004-x64

1

AppVScripting.dll

windows11-ltsc_2024-x64

1

AppVShNotify.exe

windows10-2004-x64

1

AppVShNotify.exe

windows11-ltsc_2024-x64

1

AppvIsvSub...32.dll

windows10-2004-x64

3

AppvIsvSub...32.dll

windows11-ltsc_2024-x64

6

AppvIsvSub...64.dll

windows10-2004-x64

1

AppvIsvSub...64.dll

windows11-ltsc_2024-x64

1

Analysis

  • max time kernel
    125s
  • max time network
    149s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    01/07/2026, 00:24

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General

  • Target
    AppvIsvSubsystems32.dll
  • Size 1.0MB
  • Sample260701-aqdmmsbs8p
  • SHA256 10fe48686fdb3d5d144bae3bfe8e2a39508812e116b2802d3afa6af0709b7ed0
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
6/10
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.

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
    adwarespyware
  • Modifies registry class 38 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 32 IoCs
  • Suspicious use of FindShellTrayWindow 53 IoCs
  • Suspicious use of SendNotifyMessage 39 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 2 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\AppvIsvSubsystems32.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:964
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\AppvIsvSubsystems32.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4436
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:4772
    • 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:3196
  • 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:5648
  • 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:2172

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

        memory/2172-180-0x000001F0E7220000-0x000001F0E7654000-memory.dmp
        Download

        memory/5648-50-0x0000019403C90000-0x0000019403CB0000-memory.dmp
        Download

        memory/5648-32-0x0000019403A50000-0x0000019403A70000-memory.dmp
        Download

        memory/5648-34-0x0000019413E90000-0x0000019413F90000-memory.dmp
        Download

        memory/5648-6-0x00000194001E0000-0x00000194002E0000-memory.dmp
        Download

        memory/5648-8-0x00000194001E0000-0x00000194002E0000-memory.dmp
        Download

        memory/5648-7-0x00000194001E0000-0x00000194002E0000-memory.dmp
        Download

        memory/5648-64-0x0000019414710000-0x0000019414730000-memory.dmp
        Download