Overview

overview

8

Static

static

3

WMOSetup_4...32.exe

windows10-2004-x64

7

WMOSetup_4...32.exe

windows11-ltsc_2024-x64

8

Analysis

  • max time kernel
    899s
  • max time network
    436s
  • 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, 17:03

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General

  • Target
    WMOSetup_4.2.4.132.exe
  • Size 5.4MB
  • Sample260701-vk4xvsay5p
  • SHA256 406675bcd0af379f0a9ca4c09170f71a189f53a545405ed8019e15734cc9df2a
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
8/10
adwarediscoveryinstallerpersistenceransomwarespyware

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
  • Executes dropped EXE 1 IoCs
  • 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 2 IoCs

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

    discovery
  • Inno Setup is an open-source installation builder for Windows applications. 2 IoCs

    Inno Setup installer

    installer
  • 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 44 IoCs
  • Suspicious use of FindShellTrayWindow 54 IoCs
  • Suspicious use of SendNotifyMessage 43 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:\Users\Admin\AppData\Local\Temp\WMOSetup_4.2.4.132.exe
    "C:\Users\Admin\AppData\Local\Temp\WMOSetup_4.2.4.132.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1016
    • C:\Users\Admin\AppData\Local\Temp\is-ARL7S.tmp\WMOSetup_4.2.4.132.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-ARL7S.tmp\WMOSetup_4.2.4.132.tmp" /SL5="$D006E,5117224,186880,C:\Users\Admin\AppData\Local\Temp\WMOSetup_4.2.4.132.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:1304
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:2788
    • 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:1820
  • 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:2100
  • 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:5528
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k GPSvcGroup
    1⤵
      PID:5776
    • C:\Windows\System32\SecurityHealthHost.exe
      \\?\C:\Windows\System32\SecurityHealthHost.exe {08728914-3F57-4D52-9E31-49DAECA5A80A} -Embedding
      1⤵
        PID:3352

      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

            WMOSetup_4.2.4.132.tmp
            • Path C:\Users\Admin\AppData\Local\Temp\is-ARL7S.tmp\WMOSetup_4.2.4.132.tmp
            • Size 1.2MB
            • SHA256 2760fc3c0f187353b1e0d3c27fd18704ac745e8ed5c0bcd9de5b7069994934f3
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            memory/1016-0-0x0000000000400000-0x0000000000438000-memory.dmp
            Download

            memory/1016-8-0x0000000000400000-0x0000000000438000-memory.dmp
            Download

            memory/1304-9-0x0000000000400000-0x000000000053D000-memory.dmp
            Download

            memory/1304-193-0x0000000000400000-0x000000000053D000-memory.dmp
            Download

            memory/1304-12-0x0000000000400000-0x000000000053D000-memory.dmp
            Download

            memory/1304-14-0x0000000000400000-0x000000000053D000-memory.dmp
            Download

            memory/1304-16-0x0000000000400000-0x000000000053D000-memory.dmp
            Download

            memory/1304-18-0x0000000000400000-0x000000000053D000-memory.dmp
            Download

            memory/1304-6-0x0000000000870000-0x0000000000871000-memory.dmp
            Download

            memory/1304-10-0x0000000000870000-0x0000000000871000-memory.dmp
            Download

            memory/1820-194-0x0000000005DC0000-0x0000000005F8A000-memory.dmp
            Download

            memory/2100-37-0x0000019500060000-0x0000019500160000-memory.dmp
            Download

            memory/2100-47-0x00000195038B0000-0x00000195038D0000-memory.dmp
            Download

            memory/2100-48-0x0000019503D10000-0x0000019503E10000-memory.dmp
            Download

            memory/2100-54-0x0000019503B10000-0x0000019503B30000-memory.dmp
            Download

            memory/2100-83-0x0000019504590000-0x00000195045B0000-memory.dmp
            Download

            memory/5528-195-0x000001C380700000-0x000001C3809BC000-memory.dmp
            Download

            memory/5528-225-0x000001C380700000-0x000001C3809BC000-memory.dmp
            Download