Analysis

  • max time kernel
    152s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    15/04/2022, 07:13

General

  • Target
    93e50513752ec7431a1e1a5a50fbaf66d1dabebb00753fb40c5ea3cb74f797ca.exe
  • Size 6.1MB
  • Sample220415-h2lfmabbek
  • SHA256 93e50513752ec7431a1e1a5a50fbaf66d1dabebb00753fb40c5ea3cb74f797ca
  • MD5 SHA1 SHA512
Score
10/10

Malware Config

Signatures

  • RMS

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

  • Executes dropped EXE 5 IoCs
  • Checks computer location settings 2 TTPs 4 IoCs

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

  • Loads dropped DLL 7 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\93e50513752ec7431a1e1a5a50fbaf66d1dabebb00753fb40c5ea3cb74f797ca.exe
    "C:\Users\Admin\AppData\Local\Temp\93e50513752ec7431a1e1a5a50fbaf66d1dabebb00753fb40c5ea3cb74f797ca.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1556
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\install.cmd" "
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1048
      • C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\rfusclient.exe
        rfusclient.exe -deploy
        3⤵
        • Executes dropped EXE
        • Checks computer location settings
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:1140
        • C:\Users\Admin\AppData\Roaming\RUT-Agent\68001\1F7403F976\rfusclient.exe
          "C:\Users\Admin\AppData\Roaming\RUT-Agent\68001\1F7403F976\rfusclient.exe" -run_agent
          4⤵
          • Executes dropped EXE
          • Checks computer location settings
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:872
          • C:\Users\Admin\AppData\Roaming\RUT-Agent\68001\1F7403F976\rutserv.exe
            "C:\Users\Admin\AppData\Roaming\RUT-Agent\68001\1F7403F976\rutserv.exe"
            5⤵
            • Executes dropped EXE
            • Checks computer location settings
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of SetWindowsHookEx
            PID:1792
            • C:\Users\Admin\AppData\Roaming\RUT-Agent\68001\1F7403F976\rutserv.exe
              C:\Users\Admin\AppData\Roaming\RUT-Agent\68001\1F7403F976\rutserv.exe -second
              6⤵
              • Executes dropped EXE
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of SetWindowsHookEx
              • Suspicious use of WriteProcessMemory
              PID:1068
              • C:\Users\Admin\AppData\Roaming\RUT-Agent\68001\1F7403F976\rfusclient.exe
                C:\Users\Admin\AppData\Roaming\RUT-Agent\68001\1F7403F976\rfusclient.exe /tray /user
                7⤵
                • Executes dropped EXE
                • Checks computer location settings
                • Suspicious use of FindShellTrayWindow
                • Suspicious use of SendNotifyMessage
                PID:1760

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 49KB
        • SHA256 5810c1f2453156015e43dc8844b8463eaa47be877c07834e67723815aa60c5d3
        • MD5 SHA1 SHA512 SSDEEP

        Chinese Simplified.lg

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Chinese Simplified.lg
        • Size 37KB
        • SHA256 4d646a6af146c05cdb4644f62605cb40196595e6ed3aabcaf92e7d081c4eebf1
        • MD5 SHA1 SHA512 SSDEEP

        Chinese Traditional.lg

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Chinese Traditional.lg
        • Size 37KB
        • SHA256 ac397a585dd2e48f8ee01d2e50d4d87e138d24d6f6f7c442507feab796c3a9ed
        • MD5 SHA1 SHA512 SSDEEP

        Czech.lg

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Czech.lg
        • Size 52KB
        • SHA256 f1900d97610996e7a71c354f3899c26324e5a5493374a4d697558e4c4f669257
        • MD5 SHA1 SHA512 SSDEEP

        Danish.lg

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Danish.lg
        • Size 52KB
        • SHA256 3db7b110d7df4402b0ac207d28debb735cfd476ef42c2f71bbba5108a0b96da5
        • MD5 SHA1 SHA512 SSDEEP

        Dutch.lg

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Dutch.lg
        • Size 55KB
        • SHA256 83813ca174f76a126e05f6cca58be24ce2a48a2632e9bf6bfa46a353d01111b6
        • MD5 SHA1 SHA512 SSDEEP

        EULA.rtf

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\EULA.rtf
        • Size 49KB
        • SHA256 2e551329bf8cb93e665c17bac916776d75091ff190b7ccff8a48fb0de0d582b5
        • MD5 SHA1 SHA512 SSDEEP

        English.lg

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\English.lg
        • Size 52KB
        • SHA256 fe57254a0c2a3593d618bea7d43074c7b637ec3021f0b51073c0d95f65bae882
        • MD5 SHA1 SHA512 SSDEEP

        French.lg

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\French.lg
        • Size 56KB
        • SHA256 0b05f6ada359e0c3295d32087874bf2888e60400fe3a9ec4d54a849031bfe915
        • MD5 SHA1 SHA512 SSDEEP

        German.lg

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\German.lg
        • Size 54KB
        • SHA256 56b73a451ecc9d3f99892b397ef1b5006b6f9296765d01fbdc7fc3d979400bbd
        • MD5 SHA1 SHA512 SSDEEP

        Hebrew.lg

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Hebrew.lg
        • Size 46KB
        • SHA256 6387f12ff599445016b7f5b191170f077fe50c8b986a7d9650abfb7ccb6377f5
        • MD5 SHA1 SHA512 SSDEEP

        Italian.lg

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Italian.lg
        • Size 54KB
        • SHA256 9848f250729fe0a81118aa027592ad0ef98d8428e808fa7bafa0903a93c4d94b
        • MD5 SHA1 SHA512 SSDEEP

        Japanese.lg

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Japanese.lg
        • Size 42KB
        • SHA256 4df73b25972b4388f2ffe70b88d4cfc739aed58dc0a72163b96cd407eb8d4388
        • MD5 SHA1 SHA512 SSDEEP

        Korean.lg

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Korean.lg
        • Size 40KB
        • SHA256 87ada3f861a2b04e39f633218b791cc9e08200dafe96b85538c2ce402fe1f0db
        • MD5 SHA1 SHA512 SSDEEP

        Norwegian.lg

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Norwegian.lg
        • Size 51KB
        • SHA256 d3014f26e0b5bd84f694c8ad18f0de48ce3cbcbaa2f649070f161c64702cae3d
        • MD5 SHA1 SHA512 SSDEEP

        Polish.lg

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Polish.lg
        • Size 53KB
        • SHA256 b885b4e1e7bea7c202c71313a60774143dd7cc18d1a0ec8412b47d53016ea3f3
        • MD5 SHA1 SHA512 SSDEEP

        Portuguese, Brazilian.lg

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Portuguese, Brazilian.lg
        • Size 54KB
        • SHA256 b9793f0ede71f259dc242c926cdc8f70fdb241a8a0f22c7206fb51b7e0a43002
        • MD5 SHA1 SHA512 SSDEEP

        Portuguese.lg

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Portuguese.lg
        • Size 54KB
        • SHA256 c6e7b98ea6fd6bd60d26c46ba6432000cf4c47c5ba137fb63e905cfc2b3d36ba
        • MD5 SHA1 SHA512 SSDEEP

        RIPCServer.dll

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\RIPCServer.dll
        • Size 151KB
        • SHA256 05040b677d7697b4f97da173c6c07146d3bde327833fd2022bf2cb67f90389ca
        • MD5 SHA1 SHA512 SSDEEP

        RWLN.dll

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\RWLN.dll
        • Size 967KB
        • SHA256 e713f288a46aad762f76c945467bb3ea7c84edfc56cec1c4c1b40d9f919bdcc0
        • MD5 SHA1 SHA512 SSDEEP

        Spanish.lg

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Spanish.lg
        • Size 54KB
        • SHA256 c157ce11631f26462c764bab24b0700f019a2213b36a92002d886d156afa7b03
        • MD5 SHA1 SHA512 SSDEEP

        Swedish.lg

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Swedish.lg
        • Size 52KB
        • SHA256 88f45f3cc9999a1e35967cd7f33d2d15c0c31b13336fbf93e754e1af8903d9c1
        • MD5 SHA1 SHA512 SSDEEP

        Turkish.lg

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Turkish.lg
        • Size 54KB
        • SHA256 00d3aa64e2afe9b92f2d13255a86eee0f289d9d257229289de0e2020626f0508
        • MD5 SHA1 SHA512 SSDEEP

        branding.ini

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\branding.ini
        • Size 374B
        • SHA256 8fc26439ed7808f5466fe46a0ddf5e7e93b9f597bcce0d806ac6908dc0b8df83
        • MD5 SHA1 SHA512

        config.txt

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\config.txt
        • Size 86B
        • SHA256 eb35f14c5463a76bdeef12596c09894e137cd40d0998d2a717ae2d1f572bc37a
        • MD5 SHA1 SHA512

        install.cmd

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\install.cmd
        • Size 25B
        • SHA256 815255a94853b2677f84ad15ff188f66a7e1ccd700bc7bf94afa05e2f4992255
        • MD5 SHA1 SHA512

        logo.png

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\logo.png
        • Size 9KB
        • SHA256 9da57cd6d471aa220fd63b19b411ed5cf94a86ad1c914a867c6a4e938b152e71
        • MD5 SHA1 SHA512 SSDEEP

        rfusclient.exe

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\rfusclient.exe
        • Size 5.5MB
        • SHA256 faf0c5e4ef7dbcfd863377c55a4d1d87a3f6a58c13a8a9882e11012066f31976
        • MD5 SHA1 SHA512 SSDEEP

        rfusclient.exe

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\rfusclient.exe
        • Size 5.5MB
        • SHA256 faf0c5e4ef7dbcfd863377c55a4d1d87a3f6a58c13a8a9882e11012066f31976
        • MD5 SHA1 SHA512 SSDEEP

        rutserv.exe

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\rutserv.exe
        • Size 9.5MB
        • SHA256 a803bd4522ec8804adf5e548b2ffc9e3afa7eee179d96945de1a5980b5616445
        • MD5 SHA1 SHA512 SSDEEP

        settings.dat

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\settings.dat
        • Size 3KB
        • SHA256 523a3e1aeb0131386be1ac170d4be9166fc54b5c3dbbd91d0a5a4c65ab3d55eb
        • MD5 SHA1 SHA512

        vp8decoder.dll

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\vp8decoder.dll
        • Size 381KB
        • SHA256 f14dab0b9f18aced330729b4a772e6b139817be01783b97b92e9af5fc26615d2
        • MD5 SHA1 SHA512 SSDEEP

        vp8encoder.dll

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\vp8encoder.dll
        • Size 1.6MB
        • SHA256 616a0047b5f28a071fc26dd9b0fd90d5110c77a3635565cebc24b6362d8c9844
        • MD5 SHA1 SHA512 SSDEEP

        webmmux.dll

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\webmmux.dll
        • Size 261KB
        • SHA256 d639adb51c6e3ee8c249d11eb8db606ba2aa37d4f12f80f2b9685d8f560984bf
        • MD5 SHA1 SHA512 SSDEEP

        webmvorbisdecoder.dll

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\webmvorbisdecoder.dll
        • Size 366KB
        • SHA256 78115050f4e99372fc10b19a14af60e623ddfda224c8e96340cb5d8166507e2b
        • MD5 SHA1 SHA512 SSDEEP

        webmvorbisencoder.dll

        • Path C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\webmvorbisencoder.dll
        • Size 861KB
        • SHA256 1a9632b9e061b56017d2eb8d15c20e60a9518b4de5faa0399eaba0a17c10045d
        • MD5 SHA1 SHA512 SSDEEP

        rfusclient.exe

        • Path C:\Users\Admin\AppData\Roaming\RUT-Agent\68001\1F7403F976\rfusclient.exe
        • Size 5.5MB
        • SHA256 faf0c5e4ef7dbcfd863377c55a4d1d87a3f6a58c13a8a9882e11012066f31976
        • MD5 SHA1 SHA512 SSDEEP

        rfusclient.exe

        • Path C:\Users\Admin\AppData\Roaming\RUT-Agent\68001\1F7403F976\rfusclient.exe
        • Size 5.5MB
        • SHA256 faf0c5e4ef7dbcfd863377c55a4d1d87a3f6a58c13a8a9882e11012066f31976
        • MD5 SHA1 SHA512 SSDEEP

        rfusclient.exe

        • Path C:\Users\Admin\AppData\Roaming\RUT-Agent\68001\1F7403F976\rfusclient.exe
        • Size 5.5MB
        • SHA256 faf0c5e4ef7dbcfd863377c55a4d1d87a3f6a58c13a8a9882e11012066f31976
        • MD5 SHA1 SHA512 SSDEEP

        rutserv.exe

        • Path C:\Users\Admin\AppData\Roaming\RUT-Agent\68001\1F7403F976\rutserv.exe
        • Size 9.5MB
        • SHA256 a803bd4522ec8804adf5e548b2ffc9e3afa7eee179d96945de1a5980b5616445
        • MD5 SHA1 SHA512 SSDEEP

        rutserv.exe

        • Path C:\Users\Admin\AppData\Roaming\RUT-Agent\68001\1F7403F976\rutserv.exe
        • Size 9.5MB
        • SHA256 a803bd4522ec8804adf5e548b2ffc9e3afa7eee179d96945de1a5980b5616445
        • MD5 SHA1 SHA512 SSDEEP

        rfusclient.exe

        • Path \Users\Admin\AppData\Local\Temp\7ZipSfx.000\rfusclient.exe
        • Size 5.5MB
        • SHA256 faf0c5e4ef7dbcfd863377c55a4d1d87a3f6a58c13a8a9882e11012066f31976
        • MD5 SHA1 SHA512 SSDEEP

        rfusclient.exe

        • Path \Users\Admin\AppData\Local\Temp\7ZipSfx.000\rfusclient.exe
        • Size 5.5MB
        • SHA256 faf0c5e4ef7dbcfd863377c55a4d1d87a3f6a58c13a8a9882e11012066f31976
        • MD5 SHA1 SHA512 SSDEEP

        rfusclient.exe

        • Path \Users\Admin\AppData\Roaming\RUT-Agent\68001\1F7403F976\rfusclient.exe
        • Size 5.5MB
        • SHA256 faf0c5e4ef7dbcfd863377c55a4d1d87a3f6a58c13a8a9882e11012066f31976
        • MD5 SHA1 SHA512 SSDEEP

        rutserv.exe

        • Path \Users\Admin\AppData\Roaming\RUT-Agent\68001\1F7403F976\rutserv.exe
        • Size 9.5MB
        • SHA256 a803bd4522ec8804adf5e548b2ffc9e3afa7eee179d96945de1a5980b5616445
        • MD5 SHA1 SHA512 SSDEEP

        rutserv.exe

        • Path \Users\Admin\AppData\Roaming\RUT-Agent\68001\1F7403F976\rutserv.exe
        • Size 9.5MB
        • SHA256 a803bd4522ec8804adf5e548b2ffc9e3afa7eee179d96945de1a5980b5616445
        • MD5 SHA1 SHA512 SSDEEP

        rutserv.exe

        • Path \Users\Admin\AppData\Roaming\RUT-Agent\68001\1F7403F976\rutserv.exe
        • Size 9.5MB
        • SHA256 a803bd4522ec8804adf5e548b2ffc9e3afa7eee179d96945de1a5980b5616445
        • MD5 SHA1 SHA512 SSDEEP

        rutserv.exe

        • Path \Users\Admin\AppData\Roaming\RUT-Agent\68001\1F7403F976\rutserv.exe
        • Size 9.5MB
        • SHA256 a803bd4522ec8804adf5e548b2ffc9e3afa7eee179d96945de1a5980b5616445
        • MD5 SHA1 SHA512 SSDEEP

        memory/1556-54-0x00000000761F1000-0x00000000761F3000-memory.dmp