Analysis

  • max time kernel
    145s
  • 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
    22/11/2022, 18:46

General

  • Target
    5cd9f9e3744daa7ecd4479f483124cc269e827c8acc96271e1f1ea2023afa520.exe
  • Size 2.3MB
  • Sample221122-xe42sagg9z
  • SHA256 5cd9f9e3744daa7ecd4479f483124cc269e827c8acc96271e1f1ea2023afa520
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • RMS

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

  • Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Sets file to hidden 1 TTPs 1 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in System32 directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Kills process with taskkill 28 IoCs
  • Modifies data under HKEY_USERS 10 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 34 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5cd9f9e3744daa7ecd4479f483124cc269e827c8acc96271e1f1ea2023afa520.exe
    "C:\Users\Admin\AppData\Local\Temp\5cd9f9e3744daa7ecd4479f483124cc269e827c8acc96271e1f1ea2023afa520.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4376
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\install.bat" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:5080
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im anvir.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:5068
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im rutserv.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:1864
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im rfusclient.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:4832
      • C:\Windows\SysWOW64\attrib.exe
        attrib +s +h +r "C:\Users\Admin\WindowsUpdate"
        3⤵
        • Sets file to hidden
        • Views/modifies file attributes
        PID:2888
      • C:\Users\Admin\WindowsUpdate\svnhost.exe
        "C:\Users\Admin\WindowsUpdate\svnhost.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2408
        • C:\Users\Admin\WindowsUpdate\svnhost.exe
          C:\Users\Admin\WindowsUpdate\svnhost.exe -second
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Drops file in System32 directory
          • Modifies data under HKEY_USERS
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3488
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im rundll32.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:2092
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im rundll32.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:224
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im rundll32.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:3296
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im rundll32.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:4676
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im rundll32.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:3036
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im rundll32.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:3552
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im rundll32.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:3844
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im rundll32.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:1420
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im rundll32.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:4592
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im rundll32.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:1932
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im rundll32.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:4608
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im rundll32.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:3820
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im rundll32.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:3288
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im rundll32.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:2124
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im rundll32.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:904
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im rundll32.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:2988
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im rundll32.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:3680
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im rundll32.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:4552
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im rundll32.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:4248
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im rundll32.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:4740
      • C:\Windows\SysWOW64\PING.EXE
        ping -n 1 localhost
        3⤵
        • Runs ping.exe
        PID:4448
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im rundll32.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:4760
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im rundll32.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:4564
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im rundll32.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:656
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im rundll32.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:2412
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im rundll32.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:876
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k netsvcs -p -s seclogon
    1⤵
    • Suspicious use of NtCreateUserProcessOtherParentProcess
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:312

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        RIPCServer.dll

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\RIPCServer.dll
        • Size 144KB
        • SHA256 d7612a721e42438071bf9adeda3a8d098f7e5e6952aa5a692df88035238f5284
        • MD5 SHA1 SHA512 SSDEEP

        RWLN.dll

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\RWLN.dll
        • Size 957KB
        • SHA256 d08b94fa5b9794f8217a52236b0a510bec753f4b99a31be6718aea42bd877e54
        • MD5 SHA1 SHA512 SSDEEP

        config.dll

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\config.dll
        • Size 3KB
        • SHA256 14e9fa14ea51d41ad033a4083c0b6d8e1c36631857d9b754dd97353e72b1c734
        • MD5 SHA1 SHA512

        install.bat

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\install.bat
        • Size 1KB
        • SHA256 0a55e2f6d351225ca543d119d17b47325e55fdba5c513d3849a8ab082a6a73ba
        • MD5 SHA1 SHA512

        null

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\null
        • Size 259B
        • SHA256 61b96cc711441f6e6856d203e7a64cbc138ad16fc6f4a87ad2ff8b0ffc8d7ccd
        • MD5 SHA1 SHA512

        settings.ini

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\settings.ini
        • Size 124B
        • SHA256 6c04d815f37b1b9f5a8664bfaf54ee6772c7b40220528057105194fcea18db41
        • MD5 SHA1 SHA512

        svnhost.exe

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\svnhost.exe
        • Size 5.7MB
        • SHA256 6132c9e667923ce1cabb3293b1f3be77d70fb1681bf2d3fb173a93f89eecdd94
        • MD5 SHA1 SHA512 SSDEEP

        vp8decoder.dll

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\vp8decoder.dll
        • Size 409KB
        • SHA256 a47431090c357c00b27a3327d9d591088bc84b60060751ea6454cb3f1ae23e69
        • MD5 SHA1 SHA512 SSDEEP

        vp8encoder.dll

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\vp8encoder.dll
        • Size 691KB
        • SHA256 6f5ddf4113e92bf798e9ecf0fc0350ee7cae7c5479ca495e3045bdb313efd240
        • MD5 SHA1 SHA512 SSDEEP

        winmm.dll

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\winmm.dll
        • Size 104KB
        • SHA256 359832f19484c0dafa3975b9bd933149bdddd6239df1c2abaf24e90961dc5d5f
        • MD5 SHA1 SHA512 SSDEEP

        RIPCServer.dll

        • Path C:\Users\Admin\WindowsUpdate\RIPCServer.dll
        • Size 144KB
        • SHA256 d7612a721e42438071bf9adeda3a8d098f7e5e6952aa5a692df88035238f5284
        • MD5 SHA1 SHA512 SSDEEP

        RWLN.dll

        • Path C:\Users\Admin\WindowsUpdate\RWLN.dll
        • Size 957KB
        • SHA256 d08b94fa5b9794f8217a52236b0a510bec753f4b99a31be6718aea42bd877e54
        • MD5 SHA1 SHA512 SSDEEP

        config.dll

        • Path C:\Users\Admin\WindowsUpdate\config.dll
        • Size 3KB
        • SHA256 14e9fa14ea51d41ad033a4083c0b6d8e1c36631857d9b754dd97353e72b1c734
        • MD5 SHA1 SHA512

        settings.ini

        • Path C:\Users\Admin\WindowsUpdate\settings.ini
        • Size 124B
        • SHA256 6c04d815f37b1b9f5a8664bfaf54ee6772c7b40220528057105194fcea18db41
        • MD5 SHA1 SHA512

        svnhost.exe

        • Path C:\Users\Admin\WindowsUpdate\svnhost.exe
        • Size 5.7MB
        • SHA256 6132c9e667923ce1cabb3293b1f3be77d70fb1681bf2d3fb173a93f89eecdd94
        • MD5 SHA1 SHA512 SSDEEP

        svnhost.exe

        • Path C:\Users\Admin\WindowsUpdate\svnhost.exe
        • Size 5.7MB
        • SHA256 6132c9e667923ce1cabb3293b1f3be77d70fb1681bf2d3fb173a93f89eecdd94
        • MD5 SHA1 SHA512 SSDEEP

        svnhost.exe

        • Path C:\Users\Admin\WindowsUpdate\svnhost.exe
        • Size 5.7MB
        • SHA256 6132c9e667923ce1cabb3293b1f3be77d70fb1681bf2d3fb173a93f89eecdd94
        • MD5 SHA1 SHA512 SSDEEP

        vp8decoder.dll

        • Path C:\Users\Admin\WindowsUpdate\vp8decoder.dll
        • Size 409KB
        • SHA256 a47431090c357c00b27a3327d9d591088bc84b60060751ea6454cb3f1ae23e69
        • MD5 SHA1 SHA512 SSDEEP

        vp8encoder.dll

        • Path C:\Users\Admin\WindowsUpdate\vp8encoder.dll
        • Size 691KB
        • SHA256 6f5ddf4113e92bf798e9ecf0fc0350ee7cae7c5479ca495e3045bdb313efd240
        • MD5 SHA1 SHA512 SSDEEP

        winmm.dll

        • Path C:\Users\Admin\WindowsUpdate\winmm.dll
        • Size 104KB
        • SHA256 359832f19484c0dafa3975b9bd933149bdddd6239df1c2abaf24e90961dc5d5f
        • MD5 SHA1 SHA512 SSDEEP

        winmm.dll

        • Path C:\Users\Admin\WindowsUpdate\winmm.dll
        • Size 104KB
        • SHA256 359832f19484c0dafa3975b9bd933149bdddd6239df1c2abaf24e90961dc5d5f
        • MD5 SHA1 SHA512 SSDEEP

        winmm.dll

        • Path C:\Users\Admin\WindowsUpdate\winmm.dll
        • Size 104KB
        • SHA256 359832f19484c0dafa3975b9bd933149bdddd6239df1c2abaf24e90961dc5d5f
        • MD5 SHA1 SHA512 SSDEEP