Analysis

  • max time kernel
    150s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    05/07/2026, 18:11

General

  • Target
    TeamViewer.exe
  • Size 9.2MB
  • Sample260705-ws2cdaav7k
  • SHA256 5a72cd6f1d7a06a50867e2524b88066fd000b97d7001ac9346990adc635bdf14
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 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 3 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\TeamViewer.exe
    "C:\Users\Admin\AppData\Local\Temp\TeamViewer.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4352
    • C:\Users\Admin\AppData\Local\Temp\TeamViewer\TeamViewer.exe
      "C:\Users\Admin\AppData\Local\Temp\TeamViewer\TeamViewer.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Enumerates system info in registry
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:668
      • C:\Users\Admin\AppData\Local\Temp\TeamViewer\tv_w32.exe
        "C:\Users\Admin\AppData\Local\Temp\TeamViewer\tv_w32.exe" --action hooks --log C:\Users\Admin\AppData\Roaming\TeamViewer\TeamViewer12_Logfile.log
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2484
      • C:\Users\Admin\AppData\Local\Temp\TeamViewer\tv_x64.exe
        "C:\Users\Admin\AppData\Local\Temp\TeamViewer\tv_x64.exe" --action hooks --log C:\Users\Admin\AppData\Roaming\TeamViewer\TeamViewer12_Logfile.log
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:4304

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 244KB
        • SHA256 66f1a2040a1fe4e08e3354db8ca896d123d6ada86d8885ce75b2d3128e5aafab
        • MD5 SHA1 SHA512 SSDEEP TLSH

        TV_w32.exe

        • Path C:\Users\Admin\AppData\Local\Temp\TeamViewer\TV_w32.exe
        • Size 243KB
        • SHA256 40535e5d76eaec277089c24578925bdf8efd42e0be015285cce4897f41eedb05
        • MD5 SHA1 SHA512 SSDEEP TLSH

        TV_x64.dll

        • Path C:\Users\Admin\AppData\Local\Temp\TeamViewer\TV_x64.dll
        • Size 267KB
        • SHA256 8d6c45de7afc008ad2bac1a0ab364c21844f5aefd23ec7562f46c445243a3178
        • MD5 SHA1 SHA512 SSDEEP TLSH

        TV_x64.exe

        • Path C:\Users\Admin\AppData\Local\Temp\TeamViewer\TV_x64.exe
        • Size 280KB
        • SHA256 02348a9bcfd2ee3b07a4fcd4575b3774f777ec9c01cc674aeaae113a87d1e02f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        TeamViewer.exe

        • Path C:\Users\Admin\AppData\Local\Temp\TeamViewer\TeamViewer.exe
        • Size 26.7MB
        • SHA256 df128d2bed4b62e1b51fcde808cd0fb25561440684eb51bfe85729c6017a5b5d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        TeamViewer_Resource_pl.dll

        • Path C:\Users\Admin\AppData\Local\Temp\TeamViewer\TeamViewer_Resource_pl.dll
        • Size 650KB
        • SHA256 eeaff063bc5483bfe1dbc0d248ff6eded799be4b7556b2e59103d8179baa90f9
        • MD5 SHA1 SHA512 SSDEEP TLSH

        TeamViewer_StaticRes.dll

        • Path C:\Users\Admin\AppData\Local\Temp\TeamViewer\TeamViewer_StaticRes.dll
        • Size 1.3MB
        • SHA256 c917e01bfa61d9f98fb21a4fd416a27c0dd1e063cff711bed9b23339f6ae3556
        • MD5 SHA1 SHA512 SSDEEP TLSH

        tvinfo.ini

        • Path C:\Users\Admin\AppData\Local\Temp\TeamViewer\tvinfo.ini
        • Size 40B
        • SHA256 16b582087a939afb1af4c33340e03fedcfd495271633023f2f48c5d74aeaf4b9
        • MD5 SHA1 SHA512

        System.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsk125C.tmp\System.dll
        • Size 11KB
        • SHA256 982c5fb7ada7d8c9bc3e419d1c35da6f05bc5dd845940c179af3a33d00a36a8b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        TvGetVersion.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsk125C.tmp\TvGetVersion.dll
        • Size 154KB
        • SHA256 f89a02e858183d373d35dfffc21359acf3d45eb96f8206c3581ba05ce49d2023
        • MD5 SHA1 SHA512 SSDEEP TLSH

        nsis7z.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsk125C.tmp\nsis7z.dll
        • Size 175KB
        • SHA256 66b2f36274ddfeef35b1d6ae6e5755f834446e5d78a719063347543793987161
        • MD5 SHA1 SHA512 SSDEEP TLSH

        TeamViewer12_Logfile.log

        • Path C:\Users\Admin\AppData\Roaming\TeamViewer\TeamViewer12_Logfile.log
        • Size 6KB
        • SHA256 2301613dc0a19ad2146abb0d10ef20e760b410b85dcc8b01631e3e1fb6e0dc5c
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/668-83-0x0000000005340000-0x0000000005341000-memory.dmp

        memory/668-98-0x0000000005340000-0x0000000005341000-memory.dmp

        memory/4352-23-0x0000000006A70000-0x0000000006AA2000-memory.dmp