Analysis

  • max time kernel
    150s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    06/10/2026, 14:11

General

  • Target
    TeamViewerQS_x64.exe
  • Size 35.5MB
  • Sample261006-rhlrqafb96
  • SHA256 b2c7cb75e22be9c51472650c50557c81ef05c7e0e663e1c51d5806f8e45a8354
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 11 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • Reads user/profile data of web browsers 3 TTPs

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

  • 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.

  • Modifies data under HKEY_USERS 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\TeamViewerQS_x64.exe
    "C:\Users\Admin\AppData\Local\Temp\TeamViewerQS_x64.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1344
    • 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
      • Reads the TCP/IP host and domain name from the registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      PID:204
      • C:\Users\Admin\AppData\Local\Temp\TeamViewer\tv_w32.exe
        "C:\Users\Admin\AppData\Local\Temp\TeamViewer\tv_w32.exe" --log --action hooks
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Modifies data under HKEY_USERS
        PID:3508
      • C:\Users\Admin\AppData\Local\Temp\TeamViewer\tv_x64.exe
        "C:\Users\Admin\AppData\Local\Temp\TeamViewer\tv_x64.exe" --log --action hooks
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Modifies data under HKEY_USERS
        PID:2008

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        TV_w32.dll

        • Path C:\Users\Admin\AppData\Local\Temp\TeamViewer\TV_w32.dll
        • Size 159KB
        • SHA256 b887d3bcdcfe0ee364fea278898bf419aea297b25d05295e5bdce525159fabfd
        • MD5 SHA1 SHA512 SSDEEP TLSH

        TV_w32.exe

        • Path C:\Users\Admin\AppData\Local\Temp\TeamViewer\TV_w32.exe
        • Size 371KB
        • SHA256 a09c700a6dcc957b8a8e6bc9b8233f04adfe6e386ef75d7bd97397e41e2f440a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        TV_x64.dll

        • Path C:\Users\Admin\AppData\Local\Temp\TeamViewer\TV_x64.dll
        • Size 190KB
        • SHA256 0cc364950e63d7a960a37e05d7064bb9401f459d31c8f3f6d0ff834558f2945a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        TV_x64.exe

        • Path C:\Users\Admin\AppData\Local\Temp\TeamViewer\TV_x64.exe
        • Size 446KB
        • SHA256 e28f12bc63b929985813e7ac1de65142fe389e9ae733e1fd92f0633425ec8909
        • MD5 SHA1 SHA512 SSDEEP TLSH

        TeamViewer_Resource_de.dll

        • Path C:\Users\Admin\AppData\Local\Temp\TeamViewer\TeamViewer_Resource_de.dll
        • Size 431KB
        • SHA256 22c4cec1053d86f1ee08f6ff02a0dafa61e06c0b9856b7d1b93ce883b0ec184f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        TeamViewer_Resource_en.dll

        • Path C:\Users\Admin\AppData\Local\Temp\TeamViewer\TeamViewer_Resource_en.dll
        • Size 375KB
        • SHA256 1f50bffad6ef9863db5c7914a32cf0715f65adb66ed366ee598e0e569c34e546
        • MD5 SHA1 SHA512 SSDEEP TLSH

        TeamViewer_StaticRes.dll

        • Path C:\Users\Admin\AppData\Local\Temp\TeamViewer\TeamViewer_StaticRes.dll
        • Size 9.4MB
        • SHA256 ae8a6b44f0d351c259bc7df960161aafb6a7f14d37a33155730483aba40c1932
        • MD5 SHA1 SHA512 SSDEEP TLSH

        sciter.dll

        • Path C:\Users\Admin\AppData\Local\Temp\TeamViewer\sciter.dll
        • Size 17.0MB
        • SHA256 aeeaef03c0ce5cd6f00230486f42103b42246663572c5ed1031f31708c705fc2
        • MD5 SHA1 SHA512 SSDEEP TLSH

        tvinfo.ini

        • Path C:\Users\Admin\AppData\Local\Temp\TeamViewer\tvinfo.ini
        • Size 46B
        • SHA256 54a256126db2625dbb3a4183cc0102a4463c0471f97c42b7b3b2b52c5575d6ae
        • MD5 SHA1 SHA512

        System.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsu59F0.tmp\System.dll
        • Size 12KB
        • SHA256 8b4c47c4cf5e76ec57dd5a050d5acd832a0d532ee875d7b44f6cdaf68f90d37c
        • MD5 SHA1 SHA512 SSDEEP TLSH

        TvGetVersion.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsu59F0.tmp\TvGetVersion.dll
        • Size 858KB
        • SHA256 7d9d64547d8fcc76f4f0344713fc1d8228ccff8ca9b1da803508fecebf2fc953
        • MD5 SHA1 SHA512 SSDEEP TLSH

        nsis7z.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsu59F0.tmp\nsis7z.dll
        • Size 187KB
        • SHA256 5d71aaeefbc81732017e9040c8087e6686a16dd54e6d9bcd5ba7a47af68cc925
        • MD5 SHA1 SHA512 SSDEEP TLSH

        vz28xiE22KtMz45H

        • Path C:\Users\Admin\AppData\Local\Temp\vz28xiE22KtMz45H
        • Size 44B
        • SHA256 fdeb24bea37a58a4250020d76c857695e4be30e0d091c04af4096b4e58cc6322
        • MD5 SHA1 SHA512

        memory/204-162-0x000001B891FA0000-0x000001B8930EB000-memory.dmp

        memory/204-175-0x000001B891FA0000-0x000001B8930EB000-memory.dmp