Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/12/2022, 15:06

General

  • Target
    8e61615de91718b4662d4a99e0e5113c34237c316e6646c5a906ef2208d8da8b.exe
  • Size 7.2MB
  • Sample221206-sg352shb98
  • SHA256 8e61615de91718b4662d4a99e0e5113c34237c316e6646c5a906ef2208d8da8b
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10

Malware Config

Signatures

  • RMS

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

  • Blocklisted process makes network request 2 IoCs
  • Executes dropped EXE 7 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Loads dropped DLL 8 IoCs
  • Enumerates connected drives 3 TTPs 24 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 58 IoCs
  • Drops file in Windows directory 19 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies data under HKEY_USERS 3 IoCs
  • Modifies registry class 25 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 20 IoCs
  • Suspicious behavior: SetClipboardViewer 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 42 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8e61615de91718b4662d4a99e0e5113c34237c316e6646c5a906ef2208d8da8b.exe
    "C:\Users\Admin\AppData\Local\Temp\8e61615de91718b4662d4a99e0e5113c34237c316e6646c5a906ef2208d8da8b.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4872
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\install.cmd" "
      2⤵
      • Checks computer location settings
      • Drops file in Program Files directory
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:2152
      • C:\Windows\SysWOW64\chcp.com
        chcp 1251
        3⤵
          PID:1472
        • C:\Windows\SysWOW64\WScript.exe
          "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\error.vbs"
          3⤵
            PID:4332
          • C:\Windows\SysWOW64\msiexec.exe
            MsiExec /x {61FFA475-24D5-44FB-A51F-39B699E3D82C} /qn REBOOT=ReallySuppress
            3⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:2332
          • C:\Windows\SysWOW64\msiexec.exe
            MsiExec /x {54067864-C0E7-47DB-A0C1-D6C874CE6BD8} /qn REBOOT=ReallySuppress
            3⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:2108
          • C:\Windows\SysWOW64\PING.EXE
            ping 127.0.0.1
            3⤵
            • Runs ping.exe
            PID:5100
          • C:\Windows\SysWOW64\msiexec.exe
            MsiExec /I "system32.msi" /qn
            3⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:2920
      • C:\Windows\system32\msiexec.exe
        C:\Windows\system32\msiexec.exe /V
        1⤵
        • Blocklisted process makes network request
        • Enumerates connected drives
        • Drops file in Program Files directory
        • Drops file in Windows directory
        • Modifies data under HKEY_USERS
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1548
        • C:\Windows\syswow64\MsiExec.exe
          C:\Windows\syswow64\MsiExec.exe -Embedding B6D573892AF206A7EF2D66F8F60662C9
          2⤵
          • Loads dropped DLL
          PID:544
        • C:\Program Files (x86)\Common Files\rutserv.exe
          "C:\Program Files (x86)\Common Files\rutserv.exe" /silentinstall
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          PID:3432
        • C:\Program Files (x86)\Common Files\rutserv.exe
          "C:\Program Files (x86)\Common Files\rutserv.exe" /firewall
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          PID:1428
        • C:\Program Files (x86)\Common Files\rutserv.exe
          "C:\Program Files (x86)\Common Files\rutserv.exe" /start
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          PID:2988
      • C:\Program Files (x86)\Common Files\rutserv.exe
        "C:\Program Files (x86)\Common Files\rutserv.exe"
        1⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:3204
        • C:\Program Files (x86)\Common Files\rfusclient.exe
          "C:\Program Files (x86)\Common Files\rfusclient.exe" /tray
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:944
        • C:\Program Files (x86)\Common Files\rfusclient.exe
          "C:\Program Files (x86)\Common Files\rfusclient.exe"
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4888
          • C:\Program Files (x86)\Common Files\rfusclient.exe
            "C:\Program Files (x86)\Common Files\rfusclient.exe" /tray
            3⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious behavior: SetClipboardViewer
            PID:2016

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            English.lg

            • Path C:\Program Files (x86)\Common Files\English.lg
            • Size 43KB
            • SHA256 3b6d4e43df68eadef9def8e7e8b4472114459385853cea859f2185a5ecfab24e
            • MD5 SHA1 SHA512 SSDEEP

            RIPCServer.dll

            • Path C:\Program Files (x86)\Common Files\RIPCServer.dll
            • Size 144KB
            • SHA256 ce1cd24a782932e1c28c030da741a21729a3c5930d8358079b0f91747dd0d832
            • MD5 SHA1 SHA512 SSDEEP

            RWLN.dll

            • Path C:\Program Files (x86)\Common Files\RWLN.dll
            • Size 957KB
            • SHA256 be991f825a2e6939f776ebc6d80d512a33cbbe60de2fcc32820c64f1d6b13c07
            • MD5 SHA1 SHA512 SSDEEP

            Russian.lg

            • Path C:\Program Files (x86)\Common Files\Russian.lg
            • Size 48KB
            • SHA256 e283bc3d094bc5ec94d922f3b5559c4ad8ca25c4a24e2ca31e74511ba31e29c1
            • MD5 SHA1 SHA512 SSDEEP

            dsfVorbisDecoder.dll

            • Path C:\Program Files (x86)\Common Files\dsfVorbisDecoder.dll
            • Size 240KB
            • SHA256 49295f414c5405a4f180b319cfed471871471776e4853baaf117a5185ec0d90d
            • MD5 SHA1 SHA512 SSDEEP

            dsfVorbisEncoder.dll

            • Path C:\Program Files (x86)\Common Files\dsfVorbisEncoder.dll
            • Size 1.6MB
            • SHA256 74ca24097bc69145af11dc6a0580665d4766aa78c7633f4084d16d7b4fecc5fb
            • MD5 SHA1 SHA512 SSDEEP

            gdiplus.dll

            • Path C:\Program Files (x86)\Common Files\gdiplus.dll
            • Size 1.6MB
            • SHA256 7d3c4c52684afff597dc4c132c464b651cb94aad039458b674d69cf76c240e64
            • MD5 SHA1 SHA512 SSDEEP

            msvcp90.dll

            • Path C:\Program Files (x86)\Common Files\msvcp90.dll
            • Size 556KB
            • SHA256 9f47416ca37a864a31d3dc997677f8739433f294e83d0621c48eb9093c2e4515
            • MD5 SHA1 SHA512 SSDEEP

            msvcr90.dll

            • Path C:\Program Files (x86)\Common Files\msvcr90.dll
            • Size 638KB
            • SHA256 420d298de132941eacec6718039a5f42eaec498399c482e2e0ff4dad76a09608
            • MD5 SHA1 SHA512 SSDEEP

            rfusclient.exe

            • Path C:\Program Files (x86)\Common Files\rfusclient.exe
            • Size 4.8MB
            • SHA256 a8f5fa708123f8471bcd790725a021a3e3edfec3371cdffcb7788b9eb20c1d22
            • MD5 SHA1 SHA512 SSDEEP

            rfusclient.exe

            • Path C:\Program Files (x86)\Common Files\rfusclient.exe
            • Size 4.8MB
            • SHA256 a8f5fa708123f8471bcd790725a021a3e3edfec3371cdffcb7788b9eb20c1d22
            • MD5 SHA1 SHA512 SSDEEP

            rfusclient.exe

            • Path C:\Program Files (x86)\Common Files\rfusclient.exe
            • Size 4.8MB
            • SHA256 a8f5fa708123f8471bcd790725a021a3e3edfec3371cdffcb7788b9eb20c1d22
            • MD5 SHA1 SHA512 SSDEEP

            rfusclient.exe

            • Path C:\Program Files (x86)\Common Files\rfusclient.exe
            • Size 4.8MB
            • SHA256 a8f5fa708123f8471bcd790725a021a3e3edfec3371cdffcb7788b9eb20c1d22
            • MD5 SHA1 SHA512 SSDEEP

            rutserv.exe

            • Path C:\Program Files (x86)\Common Files\rutserv.exe
            • Size 5.7MB
            • SHA256 a0487ebd599580d2364bafcd8990970436e40e4979021e02866d0652067d6dbd
            • MD5 SHA1 SHA512 SSDEEP

            rutserv.exe

            • Path C:\Program Files (x86)\Common Files\rutserv.exe
            • Size 5.7MB
            • SHA256 a0487ebd599580d2364bafcd8990970436e40e4979021e02866d0652067d6dbd
            • MD5 SHA1 SHA512 SSDEEP

            rutserv.exe

            • Path C:\Program Files (x86)\Common Files\rutserv.exe
            • Size 5.7MB
            • SHA256 a0487ebd599580d2364bafcd8990970436e40e4979021e02866d0652067d6dbd
            • MD5 SHA1 SHA512 SSDEEP

            rutserv.exe

            • Path C:\Program Files (x86)\Common Files\rutserv.exe
            • Size 5.7MB
            • SHA256 a0487ebd599580d2364bafcd8990970436e40e4979021e02866d0652067d6dbd
            • MD5 SHA1 SHA512 SSDEEP

            rutserv.exe

            • Path C:\Program Files (x86)\Common Files\rutserv.exe
            • Size 5.7MB
            • SHA256 a0487ebd599580d2364bafcd8990970436e40e4979021e02866d0652067d6dbd
            • MD5 SHA1 SHA512 SSDEEP

            vp8decoder.dll

            • Path C:\Program Files (x86)\Common Files\vp8decoder.dll
            • Size 409KB
            • SHA256 a47431090c357c00b27a3327d9d591088bc84b60060751ea6454cb3f1ae23e69
            • MD5 SHA1 SHA512 SSDEEP

            vp8encoder.dll

            • Path C:\Program Files (x86)\Common Files\vp8encoder.dll
            • Size 691KB
            • SHA256 6f5ddf4113e92bf798e9ecf0fc0350ee7cae7c5479ca495e3045bdb313efd240
            • MD5 SHA1 SHA512 SSDEEP

            winmm.dll

            • Path C:\Program Files (x86)\Common Files\winmm.dll
            • Size 21KB
            • SHA256 58e401bfbd9387d65571afda2ffc28d290d9d21843aa06a6ceca4f9457d357e9
            • MD5 SHA1 SHA512 SSDEEP

            winmm.dll

            • Path C:\Program Files (x86)\Common Files\winmm.dll
            • Size 21KB
            • SHA256 58e401bfbd9387d65571afda2ffc28d290d9d21843aa06a6ceca4f9457d357e9
            • MD5 SHA1 SHA512 SSDEEP

            winmm.dll

            • Path C:\Program Files (x86)\Common Files\winmm.dll
            • Size 21KB
            • SHA256 58e401bfbd9387d65571afda2ffc28d290d9d21843aa06a6ceca4f9457d357e9
            • MD5 SHA1 SHA512 SSDEEP

            winmm.dll

            • Path C:\Program Files (x86)\Common Files\winmm.dll
            • Size 21KB
            • SHA256 58e401bfbd9387d65571afda2ffc28d290d9d21843aa06a6ceca4f9457d357e9
            • MD5 SHA1 SHA512 SSDEEP

            winmm.dll

            • Path C:\Program Files (x86)\Common Files\winmm.dll
            • Size 21KB
            • SHA256 58e401bfbd9387d65571afda2ffc28d290d9d21843aa06a6ceca4f9457d357e9
            • MD5 SHA1 SHA512 SSDEEP

            winmm.dll

            • Path C:\Program Files (x86)\Common Files\winmm.dll
            • Size 21KB
            • SHA256 58e401bfbd9387d65571afda2ffc28d290d9d21843aa06a6ceca4f9457d357e9
            • MD5 SHA1 SHA512 SSDEEP

            winmm.dll

            • Path C:\Program Files (x86)\Common Files\winmm.dll
            • Size 21KB
            • SHA256 58e401bfbd9387d65571afda2ffc28d290d9d21843aa06a6ceca4f9457d357e9
            • MD5 SHA1 SHA512 SSDEEP

            winmm.dll

            • Path C:\Program Files (x86)\Common Files\winmm.dll
            • Size 21KB
            • SHA256 58e401bfbd9387d65571afda2ffc28d290d9d21843aa06a6ceca4f9457d357e9
            • MD5 SHA1 SHA512 SSDEEP

            error.vbs

            • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\error.vbs
            • Size 294B
            • SHA256 062c60102064e1e4f8fc9780ca83dd61843677c2f8a59a002cda8cd7a0ff6744
            • MD5 SHA1 SHA512

            install.cmd

            • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\install.cmd
            • Size 283B
            • SHA256 342d51d06b58fee8bb35cf4b578d3771fde41a8533563158da42098974255323
            • MD5 SHA1 SHA512

            system32.msi

            • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\system32.msi
            • Size 7.9MB
            • SHA256 65c4acd3866a6a7ee6441b68cd4275a169a3d8c55917a8cd683b40905dd33b2a
            • MD5 SHA1 SHA512 SSDEEP

            winmm.dll

            • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\winmm.dll
            • Size 21KB
            • SHA256 58e401bfbd9387d65571afda2ffc28d290d9d21843aa06a6ceca4f9457d357e9
            • MD5 SHA1 SHA512 SSDEEP

            MSIFED7.tmp

            • Path C:\Windows\Installer\MSIFED7.tmp
            • Size 125KB
            • SHA256 b32687eaaad888410718875dcbff9f6a552e29c4d76af33e06e59859e1054081
            • MD5 SHA1 SHA512 SSDEEP

            MSIFED7.tmp

            • Path C:\Windows\Installer\MSIFED7.tmp
            • Size 125KB
            • SHA256 b32687eaaad888410718875dcbff9f6a552e29c4d76af33e06e59859e1054081
            • MD5 SHA1 SHA512 SSDEEP

            memory/944-182-0x0000000073CE0000-0x0000000073CE7000-memory.dmp

            memory/1428-155-0x0000000073CE0000-0x0000000073CE7000-memory.dmp

            memory/2016-186-0x0000000073CE0000-0x0000000073CE7000-memory.dmp

            memory/2988-176-0x0000000073CE0000-0x0000000073CE7000-memory.dmp

            memory/3204-179-0x0000000073CE0000-0x0000000073CE7000-memory.dmp

            memory/3432-151-0x0000000073CF0000-0x0000000073CF7000-memory.dmp

            memory/4888-181-0x0000000073CE0000-0x0000000073CE7000-memory.dmp