Analysis

  • max time kernel
    176s
  • max time network
    181s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/11/2022, 04:37

General

  • Target
    f63cb635800af0847c1c734fac6721903314438945e1e6bcfe2eca3a36a9f7df.exe
  • Size 2.0MB
  • Sample221124-e89v1shf58
  • SHA256 f63cb635800af0847c1c734fac6721903314438945e1e6bcfe2eca3a36a9f7df
  • 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 3 IoCs
  • Modifies data under HKEY_USERS 8 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 9 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f63cb635800af0847c1c734fac6721903314438945e1e6bcfe2eca3a36a9f7df.exe
    "C:\Users\Admin\AppData\Local\Temp\f63cb635800af0847c1c734fac6721903314438945e1e6bcfe2eca3a36a9f7df.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4668
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\install.cmd" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2356
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im anvir.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:3040
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im rutserv.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:5064
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im rfusclient.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:4644
      • C:\Windows\SysWOW64\attrib.exe
        attrib +s +h +r "C:\Users\Admin\Birdsmade"
        3⤵
        • Sets file to hidden
        • Views/modifies file attributes
        PID:2968
      • C:\Windows\SysWOW64\reg.exe
        reg add "HKLM\SYSTEM\CurrentControlSet\Control\Terminal Server" /v fDenyTSConnections /t reg_dword /d 0 /f
        3⤵
          PID:5052
        • C:\Users\Admin\Birdsmade\svnhost.exe
          "C:\Users\Admin\Birdsmade\svnhost.exe"
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Adds Run key to start application
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1832
          • C:\Users\Admin\Birdsmade\svnhost.exe
            C:\Users\Admin\Birdsmade\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:404
    • 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:4756

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          config.dll

          • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\config.dll
          • Size 3KB
          • SHA256 4c37b23151365fb28fad4b446f93bb56839ebfbc5861c50ea59d25f0f01e022e
          • MD5 SHA1 SHA512

          install.cmd

          • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\install.cmd
          • Size 745B
          • SHA256 db35ea775a5ec6c172c0f7f0af879443f4168bbe7c7ca30e511ff6f2512aa0c8
          • MD5 SHA1 SHA512

          rinit.dll

          • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\rinit.dll
          • Size 105KB
          • SHA256 fc4d3f734cd484d0514dcee814e4238bcba251b8735f618bbee415991360ef32
          • MD5 SHA1 SHA512 SSDEEP

          settings.ini

          • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\settings.ini
          • Size 210B
          • SHA256 5f89fd6f701b47584730d20c223249e02d5fc3c73edf8dc7e0b23f64e449c018
          • MD5 SHA1 SHA512

          svnhost.exe

          • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\svnhost.exe
          • Size 5.6MB
          • SHA256 54f82a6fadee16fa21e35cc7aa82bd0ca1a636c1f5b75e1a0d83360312fad013
          • MD5 SHA1 SHA512 SSDEEP

          vp8decoder.dll

          • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\vp8decoder.dll
          • Size 403KB
          • SHA256 efcb21b1caa11c8f876238beda8411b9acf4baf8a9acf946a679e120b75ad2d5
          • MD5 SHA1 SHA512 SSDEEP

          vp8encoder.dll

          • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\vp8encoder.dll
          • Size 685KB
          • SHA256 27e0311c8b709899a31f4f16f79e6dfa2e0a6922e8f3dad56d1ade26432d443b
          • MD5 SHA1 SHA512 SSDEEP

          config.dll

          • Path C:\Users\Admin\Birdsmade\config.dll
          • Size 3KB
          • SHA256 4c37b23151365fb28fad4b446f93bb56839ebfbc5861c50ea59d25f0f01e022e
          • MD5 SHA1 SHA512

          rinit.dll

          • Path C:\Users\Admin\Birdsmade\rinit.dll
          • Size 105KB
          • SHA256 fc4d3f734cd484d0514dcee814e4238bcba251b8735f618bbee415991360ef32
          • MD5 SHA1 SHA512 SSDEEP

          rinit.dll

          • Path C:\Users\Admin\Birdsmade\rinit.dll
          • Size 105KB
          • SHA256 fc4d3f734cd484d0514dcee814e4238bcba251b8735f618bbee415991360ef32
          • MD5 SHA1 SHA512 SSDEEP

          rinit.dll

          • Path C:\Users\Admin\Birdsmade\rinit.dll
          • Size 105KB
          • SHA256 fc4d3f734cd484d0514dcee814e4238bcba251b8735f618bbee415991360ef32
          • MD5 SHA1 SHA512 SSDEEP

          settings.ini

          • Path C:\Users\Admin\Birdsmade\settings.ini
          • Size 210B
          • SHA256 5f89fd6f701b47584730d20c223249e02d5fc3c73edf8dc7e0b23f64e449c018
          • MD5 SHA1 SHA512

          svnhost.exe

          • Path C:\Users\Admin\Birdsmade\svnhost.exe
          • Size 5.6MB
          • SHA256 54f82a6fadee16fa21e35cc7aa82bd0ca1a636c1f5b75e1a0d83360312fad013
          • MD5 SHA1 SHA512 SSDEEP

          svnhost.exe

          • Path C:\Users\Admin\Birdsmade\svnhost.exe
          • Size 5.6MB
          • SHA256 54f82a6fadee16fa21e35cc7aa82bd0ca1a636c1f5b75e1a0d83360312fad013
          • MD5 SHA1 SHA512 SSDEEP

          svnhost.exe

          • Path C:\Users\Admin\Birdsmade\svnhost.exe
          • Size 5.6MB
          • SHA256 54f82a6fadee16fa21e35cc7aa82bd0ca1a636c1f5b75e1a0d83360312fad013
          • MD5 SHA1 SHA512 SSDEEP

          vp8decoder.dll

          • Path C:\Users\Admin\Birdsmade\vp8decoder.dll
          • Size 403KB
          • SHA256 efcb21b1caa11c8f876238beda8411b9acf4baf8a9acf946a679e120b75ad2d5
          • MD5 SHA1 SHA512 SSDEEP

          vp8encoder.dll

          • Path C:\Users\Admin\Birdsmade\vp8encoder.dll
          • Size 685KB
          • SHA256 27e0311c8b709899a31f4f16f79e6dfa2e0a6922e8f3dad56d1ade26432d443b
          • MD5 SHA1 SHA512 SSDEEP