Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    11/09/2026, 22:13

General

  • Target
    TeamViewerQS.exe
  • Size 17.1MB
  • Sample260911-15cxrsfb86
  • SHA256 62a4376c9e4bbde3377fe638444b78b42b27c60212516913bc0434b2b2c081ee
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: RMS

    Remote Manipulator System (RMS) is a remote access tool developed by Russian organization TektonIT.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in System32 directory 8 IoCs
  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 6 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 6 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 45 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 30 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of SetWindowsHookEx 13 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\TeamViewerQS.exe
    "C:\Users\Admin\AppData\Local\Temp\TeamViewerQS.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1840
    • C:\Users\Admin\AppData\Roaming\Remote Utilities Agent\70170\6607284D64\rfusclient.exe
      "C:\Users\Admin\AppData\Roaming\Remote Utilities Agent\70170\6607284D64\rfusclient.exe" -run_agent
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:940
      • C:\Users\Admin\AppData\Roaming\Remote Utilities Agent\70170\6607284D64\rutserv.exe
        "C:\Users\Admin\AppData\Roaming\Remote Utilities Agent\70170\6607284D64\rutserv.exe" -run_agent
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:4160
        • C:\Users\Admin\AppData\Roaming\Remote Utilities Agent\70170\6607284D64\rutserv.exe
          "C:\Users\Admin\AppData\Roaming\Remote Utilities Agent\70170\6607284D64\rutserv.exe" -run_agent -second
          4⤵
          • Adds Run key to start application
          • Drops file in System32 directory
          • Executes dropped EXE
          • Loads dropped DLL
          • System Location Discovery: System Language Discovery
          • Modifies data under HKEY_USERS
          • Modifies system certificate store
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:6096
          • C:\Users\Admin\AppData\Roaming\Remote Utilities Agent\70170\6607284D64\rfusclient.exe
            "C:\Users\Admin\AppData\Roaming\Remote Utilities Agent\70170\6607284D64\rfusclient.exe" /tray /user
            5⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of FindShellTrayWindow
            • Suspicious use of SendNotifyMessage
            PID:3008
  • C:\Users\Admin\AppData\Roaming\Remote Utilities Agent\70170\6607284D64\rutserv.exe
    "C:\Users\Admin\AppData\Roaming\Remote Utilities Agent\70170\6607284D64\rutserv.exe"
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:2668

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        EULA.rtf

        • Path C:\Users\Admin\AppData\Roaming\Remote Utilities Agent\70170\6607284D64\EULA.rtf
        • Size 15KB
        • SHA256 879180116b82210292648709982f405eae84b05e6f2ff324a6a5cc7cd512d3e7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        branding.ini

        • Path C:\Users\Admin\AppData\Roaming\Remote Utilities Agent\70170\6607284D64\branding.ini
        • Size 674B
        • SHA256 dedb9c33b36b950dcd2e4492301e48491136e95e19d058b8458752f019befd0a
        • MD5 SHA1 SHA512 TLSH

        eventmsg.dll

        • Path C:\Users\Admin\AppData\Roaming\Remote Utilities Agent\70170\6607284D64\eventmsg.dll
        • Size 51KB
        • SHA256 ccd5b9e5947f956e880bd2285a6091dc9f1ee9b0eb8df627ec4e72b451a1c745
        • MD5 SHA1 SHA512 SSDEEP TLSH

        libeay32.dll

        • Path C:\Users\Admin\AppData\Roaming\Remote Utilities Agent\70170\6607284D64\libeay32.dll
        • Size 1.3MB
        • SHA256 7975ac81130ae8fe09caf6bef313c44fe064b67ed9205f0bd11ac165386e2f95
        • MD5 SHA1 SHA512 SSDEEP TLSH

        logo.png

        • Path C:\Users\Admin\AppData\Roaming\Remote Utilities Agent\70170\6607284D64\logo.png
        • Size 11KB
        • SHA256 900f787d7bcc774df9df32d65a04494faa6e30c9647d81657c946f3e19f4ecdf
        • MD5 SHA1 SHA512 SSDEEP TLSH

        rfusclient.exe

        • Path C:\Users\Admin\AppData\Roaming\Remote Utilities Agent\70170\6607284D64\rfusclient.exe
        • Size 10.4MB
        • SHA256 02003563373af3215195ca0c23af03f845921fcfa31f58770927266b03c2ac40
        • MD5 SHA1 SHA512 SSDEEP TLSH

        rutserv.exe

        • Path C:\Users\Admin\AppData\Roaming\Remote Utilities Agent\70170\6607284D64\rutserv.exe
        • Size 19.8MB
        • SHA256 f2a5023cd559597a1b70a7e02345fb9c80b740377fcf7341d5df2d462efafda5
        • MD5 SHA1 SHA512 SSDEEP TLSH

        settings.dat

        • Path C:\Users\Admin\AppData\Roaming\Remote Utilities Agent\70170\6607284D64\settings.dat
        • Size 11KB
        • SHA256 a8d067b78f441cbf8df09936a7a0ac47599c0b59b8aad24b9fc439c3988d294e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ssleay32.dll

        • Path C:\Users\Admin\AppData\Roaming\Remote Utilities Agent\70170\6607284D64\ssleay32.dll
        • Size 337KB
        • SHA256 af029ac96a935594de92f771ef86c3e92fe22d08cb78ebf815cbfd4ef0cb94b0
        • MD5 SHA1 SHA512 SSDEEP TLSH

        vp8decoder.dll

        • Path C:\Users\Admin\AppData\Roaming\Remote Utilities Agent\70170\6607284D64\vp8decoder.dll
        • Size 380KB
        • SHA256 36993fc3312ce757c8adeca3e5969e1fcc11d5b51b12c458ba8d54d73b64d4e7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        vp8encoder.dll

        • Path C:\Users\Admin\AppData\Roaming\Remote Utilities Agent\70170\6607284D64\vp8encoder.dll
        • Size 1.6MB
        • SHA256 0961d83cb25e1a50d5c0ec2f9fb0d17f2504dae0b22a865f6e1ea8e987e1c6fa
        • MD5 SHA1 SHA512 SSDEEP TLSH

        webmmux.dll

        • Path C:\Users\Admin\AppData\Roaming\Remote Utilities Agent\70170\6607284D64\webmmux.dll
        • Size 260KB
        • SHA256 bd520007864b44e0bda7a466384d12c3c3f328326cf3549ba1853a58ccdbc99d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        webmvorbisdecoder.dll

        • Path C:\Users\Admin\AppData\Roaming\Remote Utilities Agent\70170\6607284D64\webmvorbisdecoder.dll
        • Size 365KB
        • SHA256 f3465ce8a23db5e8228eed5a60a6f7a096d1a9adf3012c39bc6d81d4e57e8e9e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        webmvorbisencoder.dll

        • Path C:\Users\Admin\AppData\Roaming\Remote Utilities Agent\70170\6607284D64\webmvorbisencoder.dll
        • Size 860KB
        • SHA256 83e1c1eb55bfd0f2d85d41c1e4dee65046b064ccb263ec7f412a5f329c75cfd1
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/940-84-0x0000000000400000-0x0000000000F17000-memory.dmp

        memory/940-86-0x0000000000400000-0x0000000000F17000-memory.dmp

        memory/940-81-0x00000000006A3000-0x00000000006A4000-memory.dmp

        memory/940-90-0x0000000000400000-0x0000000000F17000-memory.dmp

        memory/940-82-0x0000000000400000-0x0000000000F17000-memory.dmp

        memory/940-83-0x0000000000400000-0x0000000000F17000-memory.dmp

        memory/940-88-0x0000000000400000-0x0000000000F17000-memory.dmp

        memory/1840-1-0x00000000030F0000-0x00000000030F1000-memory.dmp

        memory/1840-0-0x0000000000400000-0x0000000002975000-memory.dmp

        memory/1840-79-0x0000000000400000-0x0000000002975000-memory.dmp

        memory/2668-126-0x0000000000400000-0x0000000001896000-memory.dmp

        memory/3008-125-0x0000000000400000-0x0000000000F17000-memory.dmp

        memory/4160-98-0x0000000000400000-0x0000000001896000-memory.dmp

        memory/6096-106-0x0000000000400000-0x0000000001896000-memory.dmp

        memory/6096-124-0x0000000000400000-0x0000000001896000-memory.dmp