Overview

overview

8

Static

static

7

TeamViewerQS_es.exe

windows10-2004-x64

4

TeamViewerQS_es.exe

windows11-ltsc_2024-x64

6

$PLUGINSDI...em.dll

windows10-2004-x64

3

$PLUGINSDI...em.dll

windows11-ltsc_2024-x64

3

$PLUGINSDI...on.dll

windows10-2004-x64

3

$PLUGINSDI...on.dll

windows11-ltsc_2024-x64

8

$_4_/TeamViewer_.exe

windows10-2004-x64

7

$_4_/TeamViewer_.exe

windows11-ltsc_2024-x64

8

$PLUGINSDI...64.dll

windows10-2004-x64

3

$PLUGINSDI...64.dll

windows11-ltsc_2024-x64

3

$PLUGINSDI...LL.dll

windows10-2004-x64

3

$PLUGINSDI...LL.dll

windows11-ltsc_2024-x64

3

$PLUGINSDI...ns.dll

windows10-2004-x64

3

$PLUGINSDI...ns.dll

windows11-ltsc_2024-x64

3

$PLUGINSDI...rb.dll

windows10-2004-x64

3

$PLUGINSDI...rb.dll

windows11-ltsc_2024-x64

8

$PLUGINSDI...LL.dll

windows10-2004-x64

3

$PLUGINSDI...LL.dll

windows11-ltsc_2024-x64

3

$PLUGINSDI...LL.dll

windows10-2004-x64

3

$PLUGINSDI...LL.dll

windows11-ltsc_2024-x64

3

$PLUGINSDI...nu.dll

windows10-2004-x64

3

$PLUGINSDI...nu.dll

windows11-ltsc_2024-x64

3

$PLUGINSDI...em.dll

windows10-2004-x64

3

$PLUGINSDI...em.dll

windows11-ltsc_2024-x64

3

$PLUGINSDI...on.dll

windows10-2004-x64

3

$PLUGINSDI...on.dll

windows11-ltsc_2024-x64

3

$PLUGINSDIR/UAC.dll

windows10-2004-x64

3

$PLUGINSDIR/UAC.dll

windows11-ltsc_2024-x64

3

$PLUGINSDI...fo.dll

windows10-2004-x64

3

$PLUGINSDI...fo.dll

windows11-ltsc_2024-x64

3

$PLUGINSDI...Ex.dll

windows10-2004-x64

3

$PLUGINSDI...Ex.dll

windows11-ltsc_2024-x64

8

Analysis

  • max time kernel
    150s
  • max time network
    146s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260617-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260617-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    22/06/2026, 01:20

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General

  • Target
    TeamViewerQS_es.exe
  • Size 22.0MB
  • Sample260622-bqgjzahs21
  • SHA256 df26627cc29716b65a3ed72f78d59808244f9bc4ad2624657ddbee79d2baa422
  • 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.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 19 IoCs
  • 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.

    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 54 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\TeamViewerQS_es.exe
    "C:\Users\Admin\AppData\Local\Temp\TeamViewerQS_es.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1508
    • C:\Users\Admin\AppData\Local\Temp\TeamViewer\TeamViewer_.exe
      "C:\Users\Admin\AppData\Local\Temp\TeamViewer\TeamViewer_.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:1216
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:2880
    • 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:1048
  • 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:6140
  • 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:2140

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

        TeamViewer_.exe
        • Path C:\Users\Admin\AppData\Local\Temp\TeamViewer\TeamViewer_.exe
        • Size 21.3MB
        • SHA256 bce0baeca1bfd7b52d9c5c677c9e77208bf75cc3212cf306141dd9439097e462
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        tvinfo.ini
        • Path C:\Users\Admin\AppData\Local\Temp\TeamViewer\tvinfo.ini
        • Size 45B
        • SHA256 13783eb15308b472ccdda18f74b161a3761d848f74a37fc67c5355c98bfd9f72
        • MD5 SHA1 SHA512
        Submit Download

        InstallOptions.dll
        • Path C:\Users\Admin\AppData\Local\Temp\nsa4454.tmp\InstallOptions.dll
        • Size 15KB
        • SHA256 c91c1796338a265b49039c0b2c7a312d764b99e5174fb2dae455ca54f8f41ec7
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        System.dll
        • Path C:\Users\Admin\AppData\Local\Temp\nsa4454.tmp\System.dll
        • Size 11KB
        • SHA256 982c5fb7ada7d8c9bc3e419d1c35da6f05bc5dd845940c179af3a33d00a36a8b
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        TvGetVersion.dll
        • Path C:\Users\Admin\AppData\Local\Temp\nsa4454.tmp\TvGetVersion.dll
        • Size 210KB
        • SHA256 c67cbd5e35e1ce0c7ba17c55d8e2bc33afd5e0a68774554a1fe7216d330c709e
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        UserInfo.dll
        • Path C:\Users\Admin\AppData\Local\Temp\nsa4454.tmp\UserInfo.dll
        • Size 4KB
        • SHA256 925d80c31702a95d58ede91ee97fd842de78ca6dde69156a6c1a755fba93cd5c
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        advanced_unicode.ini
        • Path C:\Users\Admin\AppData\Local\Temp\nsa4454.tmp\advanced_unicode.ini
        • Size 1KB
        • SHA256 cd8149a2e89373075ee6db800b7f2496bacbfe21b23e4a06a3453632503b3965
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        linker.dll
        • Path C:\Users\Admin\AppData\Local\Temp\nsa4454.tmp\linker.dll
        • Size 45KB
        • SHA256 f223d6c72f86544b358a6301daf60ccdd86198f32e3447a1860acf3f59f2dae9
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        start_unicode.ini
        • Path C:\Users\Admin\AppData\Local\Temp\nsa4454.tmp\start_unicode.ini
        • Size 2KB
        • SHA256 0c37e9306623959ba260d6eca89b41647f518a6729a50e75448aa02d2763134a
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        start_unicode.ini
        • Path C:\Users\Admin\AppData\Local\Temp\nsa4454.tmp\start_unicode.ini
        • Size 2KB
        • SHA256 6567892beb2b5b63ca8fd1e36cac02e4f710ef9be47f54ef6d1a55c8a53e3698
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        start_unicode.ini
        • Path C:\Users\Admin\AppData\Local\Temp\nsa4454.tmp\start_unicode.ini
        • Size 2KB
        • SHA256 97ffe1ea54224ffefd7509d19e199bcd087c078d083649cbbc93a3d0135c9261
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        start_unicode.ini
        • Path C:\Users\Admin\AppData\Local\Temp\nsa4454.tmp\start_unicode.ini
        • Size 2KB
        • SHA256 dc06085538e31a4828f4abd8a998fc2296ae1987dcb1547c96eac6f78ba9ee2f
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        start_unicode.ini
        • Path C:\Users\Admin\AppData\Local\Temp\nsa4454.tmp\start_unicode.ini
        • Size 2KB
        • SHA256 94bde605292510f8ae6df19083130770ae8c754906007ea93150cab63962190b
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        TvGetVersion.dll
        • Path C:\Users\Admin\AppData\Local\Temp\nsv364A.tmp\TvGetVersion.dll
        • Size 193KB
        • SHA256 a4db659c6265ba7efbbd4906257ef6cdb8f9b1fefba78f01425390729ab3d1f2
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/1048-595-0x000000000DC10000-0x000000000DC8C000-memory.dmp
        Download

        memory/1216-254-0x0000000009980000-0x000000000998E000-memory.dmp
        Download

        memory/2140-596-0x000001BA32B60000-0x000001BA32E1C000-memory.dmp
        Download

        memory/2140-613-0x000001BA32B60000-0x000001BA32E1C000-memory.dmp
        Download

        memory/6140-427-0x00000244801E0000-0x00000244802E0000-memory.dmp
        Download

        memory/6140-428-0x00000244801E0000-0x00000244802E0000-memory.dmp
        Download

        memory/6140-473-0x0000024C8D840000-0x0000024C8D860000-memory.dmp
        Download

        memory/6140-444-0x0000024C8D430000-0x0000024C8D530000-memory.dmp
        Download

        memory/6140-453-0x0000024C8D330000-0x0000024C8D350000-memory.dmp
        Download

        memory/6140-443-0x0000024C8D230000-0x0000024C8D250000-memory.dmp
        Download