Analysis

  • max time kernel
    149s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    15/04/2022, 03:46

General

  • Target
    61f4cffbaf458455c6a2b535ab122054dfbf9bbe38ffc901628d6dcf59565826.exe
  • Size 6.1MB
  • Sample220415-ebx5yscbhk
  • SHA256 61f4cffbaf458455c6a2b535ab122054dfbf9bbe38ffc901628d6dcf59565826
  • MD5 SHA1 SHA512
Score
10/10

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 4 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\61f4cffbaf458455c6a2b535ab122054dfbf9bbe38ffc901628d6dcf59565826.exe
    "C:\Users\Admin\AppData\Local\Temp\61f4cffbaf458455c6a2b535ab122054dfbf9bbe38ffc901628d6dcf59565826.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3656
    • 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:3872
      • C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\rfusclient.exe
        rfusclient.exe -run_agent
        3⤵
        • Executes dropped EXE
        • Checks computer location settings
        • Suspicious use of WriteProcessMemory
        PID:4700
        • C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\rutserv.exe
          "C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\rutserv.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:3164
          • C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\rutserv.exe
            C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\rutserv.exe -second
            5⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:4980
            • C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\rfusclient.exe
              C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\rfusclient.exe /tray /user
              6⤵
              • Executes dropped EXE
              • Suspicious use of FindShellTrayWindow
              • Suspicious use of SendNotifyMessage
              PID:2856
  • 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:2756

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        Arabic.lg

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Arabic.lg
        • Size 43KB
        • SHA256 4dc45baa86597a4c3d08b8297a7cd621e57089390837c3b1ef875393b34d2bf6
        • MD5 SHA1 SHA512 SSDEEP

        ChineseS.lg

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\ChineseS.lg
        • Size 33KB
        • SHA256 0137cc6245a8dcf82c1b8100fe2c90ecb19ec263f01009082885b07f125540ea
        • MD5 SHA1 SHA512 SSDEEP

        ChineseT.lg

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\ChineseT.lg
        • Size 33KB
        • SHA256 d47fe430e4414f1285f67d93ee5ec1b6cb5f8c89b126b5558f97165579018f45
        • MD5 SHA1 SHA512 SSDEEP

        Czech.lg

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Czech.lg
        • Size 47KB
        • SHA256 debf4286d7548ec59eccae0d86d3e735b14a895d85e3efacfe3b37e94ebb4316
        • MD5 SHA1 SHA512 SSDEEP

        Danish.lg

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Danish.lg
        • Size 46KB
        • SHA256 1dd3dbe1bc8a0fe7bf63abbdeb78f5e8fd86b3e03f23495cb4ccea79308e7cae
        • MD5 SHA1 SHA512 SSDEEP

        Dutch.lg

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Dutch.lg
        • Size 47KB
        • SHA256 8a9475ac44cda25fa749b814cbe5c2837326b8f1565e0dfbdbf79cd6bfdb99be
        • MD5 SHA1 SHA512 SSDEEP

        English.lg

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\English.lg
        • Size 44KB
        • SHA256 67d16f7f24999269b264e84a884cfb03e87705ec9eef342ee0d7379e5c04c240
        • MD5 SHA1 SHA512 SSDEEP

        French.lg

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\French.lg
        • Size 49KB
        • SHA256 c771abe02aa0a0d6cbe37ba09b62ba4ec17195c85c2f11af13555c48afa5fcd2
        • MD5 SHA1 SHA512 SSDEEP

        German.lg

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\German.lg
        • Size 48KB
        • SHA256 e5358640906c61b3474a6cf803dd967d0e3c576dfd6368646f6e09a5acb4a431
        • MD5 SHA1 SHA512 SSDEEP

        Hebrew.lg

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Hebrew.lg
        • Size 40KB
        • SHA256 a6623f691d947be4327b53662af986827aeeba497a07cdba5224402ae55b5fd9
        • MD5 SHA1 SHA512 SSDEEP

        Italian.lg

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Italian.lg
        • Size 48KB
        • SHA256 01ba730325b4807b877ca64db8aec1fc261cfd24b6cee0b55519194d29f2da98
        • MD5 SHA1 SHA512 SSDEEP

        Japanese.lg

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Japanese.lg
        • Size 37KB
        • SHA256 ba275f68ccf0634cf5038ff17cc90748fe3a336c82cc5bde856a10efe4632e9b
        • MD5 SHA1 SHA512 SSDEEP

        Korean.lg

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Korean.lg
        • Size 36KB
        • SHA256 84f90a4dde8abfb48f1b6a2601952861a85df0cfb2ae1f2e27435b47534a8f06
        • MD5 SHA1 SHA512 SSDEEP

        Norwegian.lg

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Norwegian.lg
        • Size 45KB
        • SHA256 6e3cc5e24337846c660cfc1e5e2e7ec18a5ec94702dbf1f8ae253fd00a1b07d9
        • MD5 SHA1 SHA512 SSDEEP

        Polish.lg

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Polish.lg
        • Size 47KB
        • SHA256 c0aa8df31b4f8e796a140159201b6809de077d58bafc6515c368f03cbacc5954
        • MD5 SHA1 SHA512 SSDEEP

        Portuguese-Brazilian.lg

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Portuguese-Brazilian.lg
        • Size 48KB
        • SHA256 d6c19126bfcea74dd5525ec13cfee394f8124cf3a1af34a84d443d6ea824d419
        • MD5 SHA1 SHA512 SSDEEP

        RIPCServer.dll

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\RIPCServer.dll
        • Size 144KB
        • SHA256 0f83229f69c10d8c8afdf0ee0275b5e727e936b1e07159779a68ebd2f613ae05
        • MD5 SHA1 SHA512 SSDEEP

        RWLN.dll

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\RWLN.dll
        • Size 976KB
        • SHA256 e088de46b352fa898b59604501206a3d59d830fdf1b3276a8afbb072a30a3bde
        • MD5 SHA1 SHA512 SSDEEP

        Spanish.lg

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Spanish.lg
        • Size 47KB
        • SHA256 bf08cecf114a34535c1b06df9675eb8d6b8ce56d925d1d536cb2c3edaa07dcd0
        • MD5 SHA1 SHA512 SSDEEP

        Swedish.lg

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Swedish.lg
        • Size 46KB
        • SHA256 d080ad158a8b083ddccb18f9ea5177bc5da11ab01112b04b14ef3917f8f53d9f
        • MD5 SHA1 SHA512 SSDEEP

        Turkish.lg

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Turkish.lg
        • Size 46KB
        • SHA256 beeb4409dbb580bf5246b2a5739b253513239dca62621a1c9e92041cd223bca0
        • MD5 SHA1 SHA512 SSDEEP

        branding.ini

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\branding.ini
        • Size 286B
        • SHA256 a5695d6b96c76dd9a5c49715790c9073350f4241157169792b522237433691c8
        • MD5 SHA1 SHA512

        install.cmd

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\install.cmd
        • Size 28B
        • SHA256 5043121594629631615d724543fdf1984fe816c0c791dc987d5cae6d1e773c44
        • MD5 SHA1 SHA512

        logo.png

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\logo.png
        • Size 1.4MB
        • SHA256 53fb3f546c51d0960e175c4311c2a17d4d2edee98a6bd967c502633a6fa0caf0
        • MD5 SHA1 SHA512 SSDEEP

        rfusclient.exe

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\rfusclient.exe
        • Size 5.1MB
        • SHA256 31616aac0c331e8dd52377a097c75625b658d3ce0f6cb29db7201f5c412d905b
        • MD5 SHA1 SHA512 SSDEEP

        rfusclient.exe

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\rfusclient.exe
        • Size 5.1MB
        • SHA256 31616aac0c331e8dd52377a097c75625b658d3ce0f6cb29db7201f5c412d905b
        • MD5 SHA1 SHA512 SSDEEP

        rfusclient.exe

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\rfusclient.exe
        • Size 5.1MB
        • SHA256 31616aac0c331e8dd52377a097c75625b658d3ce0f6cb29db7201f5c412d905b
        • MD5 SHA1 SHA512 SSDEEP

        rutserv.exe

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\rutserv.exe
        • Size 6.0MB
        • SHA256 914509cbe4084ff46835315d419dad78759fc08dfd8ce1a2038fbeb44402ce2d
        • MD5 SHA1 SHA512 SSDEEP

        rutserv.exe

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\rutserv.exe
        • Size 6.0MB
        • SHA256 914509cbe4084ff46835315d419dad78759fc08dfd8ce1a2038fbeb44402ce2d
        • MD5 SHA1 SHA512 SSDEEP

        rutserv.exe

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\rutserv.exe
        • Size 6.0MB
        • SHA256 914509cbe4084ff46835315d419dad78759fc08dfd8ce1a2038fbeb44402ce2d
        • MD5 SHA1 SHA512 SSDEEP

        settings.dat

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\settings.dat
        • Size 558B
        • SHA256 2108c4ac1f9dc0c531f5d01df8c8ac1618b0fb3192ed2c471f7defee066e63d5
        • MD5 SHA1 SHA512

        vp8decoder.dll

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\vp8decoder.dll
        • Size 378KB
        • SHA256 8f210fc42c691d281bfd5b485c0c8be3e11ddf0503585a5edc5856164eadcb3b
        • MD5 SHA1 SHA512 SSDEEP

        vp8encoder.dll

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\vp8encoder.dll
        • Size 1.6MB
        • SHA256 3770b492fbbf08f8748e3573824af868795e9155502376c25a86d4220fbece9c
        • MD5 SHA1 SHA512 SSDEEP

        webmmux.dll

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\webmmux.dll
        • Size 258KB
        • SHA256 39c086aa35f89643eab71ebaf957057fc8b04e8dfca1bbeb5d73efefd92d0e5e
        • MD5 SHA1 SHA512 SSDEEP

        webmvorbisdecoder.dll

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\webmvorbisdecoder.dll
        • Size 363KB
        • SHA256 1c4148af9a155ce14c4a82c7053a168299550da6cc9b185525c532f8b99e53ab
        • MD5 SHA1 SHA512 SSDEEP

        webmvorbisencoder.dll

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\webmvorbisencoder.dll
        • Size 858KB
        • SHA256 026a53be27b56b3ea2a7e8eab6db5286577972ee05acfe90ba4c0d9cf3c22316
        • MD5 SHA1 SHA512 SSDEEP