Analysis

  • max time kernel
    145s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    17-05-2022 12:10

General

  • Target

    B55CF23B9C1295CB522A86734D55DE3A3263E63FC58BB.exe

  • Size

    6.7MB

  • MD5

    3c4993b2cba2e109bfb33d6e78fa1880

  • SHA1

    db17088deb0a3860013b390b0ef184ea061209fc

  • SHA256

    b55cf23b9c1295cb522a86734d55de3a3263e63fc58bb4004de54fd4475c531e

  • SHA512

    d63b9c7bd3583c7eea61b098070a03e99ccf2525ecda19da08639900061b9bbf117f6a678d15eb75876f6ba073cdc00f5a48bd5c8606575e10c5fa9a6b3e4171

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
  • Drops file in System32 directory 10 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies data under HKEY_USERS 43 IoCs
  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\B55CF23B9C1295CB522A86734D55DE3A3263E63FC58BB.exe
    "C:\Users\Admin\AppData\Local\Temp\B55CF23B9C1295CB522A86734D55DE3A3263E63FC58BB.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:960
    • 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:1892
      • 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:1692
        • C:\Users\Admin\AppData\Roaming\RMS-Agent\68001\D12D2E4C77\rfusclient.exe
          "C:\Users\Admin\AppData\Roaming\RMS-Agent\68001\D12D2E4C77\rfusclient.exe" -run_agent
          4⤵
          • Executes dropped EXE
          • Checks computer location settings
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:1852
          • C:\Users\Admin\AppData\Roaming\RMS-Agent\68001\D12D2E4C77\rutserv.exe
            "C:\Users\Admin\AppData\Roaming\RMS-Agent\68001\D12D2E4C77\rutserv.exe"
            5⤵
            • Executes dropped EXE
            • Checks computer location settings
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of SetWindowsHookEx
            PID:1180
            • C:\Users\Admin\AppData\Roaming\RMS-Agent\68001\D12D2E4C77\rutserv.exe
              C:\Users\Admin\AppData\Roaming\RMS-Agent\68001\D12D2E4C77\rutserv.exe -second
              6⤵
              • Executes dropped EXE
              • Drops file in System32 directory
              • Modifies data under HKEY_USERS
              • Modifies system certificate store
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of SetWindowsHookEx
              • Suspicious use of WriteProcessMemory
              PID:776
              • C:\Users\Admin\AppData\Roaming\RMS-Agent\68001\D12D2E4C77\rfusclient.exe
                C:\Users\Admin\AppData\Roaming\RMS-Agent\68001\D12D2E4C77\rfusclient.exe /tray /user
                7⤵
                • Executes dropped EXE
                • Checks computer location settings
                • Suspicious use of FindShellTrayWindow
                • Suspicious use of SendNotifyMessage
                PID:1620

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\EULA.rtf

    Filesize

    114KB

    MD5

    c3d7db3461db0dbb8a1d2a937b1d6252

    SHA1

    35fafe6c6812f20454c709b0a43a21bf7e9f66bf

    SHA256

    cf8e39ce145e36d672cb2a140b3f33e0a1337975d7840e1d6a1920ce560bba46

    SHA512

    9759895e5d4f289e6227f65f46b24ad7f2607443bebd9b039f1cf42bd74c986a597d5de4bef70510c4463874a01695ca2f7ccbd231d6ef5316250d7492c48675

  • C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\English.lg

    Filesize

    52KB

    MD5

    294227da6f9c610c49d38e3965bcdb71

    SHA1

    a6f694235a68fe35ece21d39e736e16053f4b91d

    SHA256

    55fb4c823838b383d077b5c45df2be5fa47abc798054701c23fde5f312379755

    SHA512

    0f3661ca19385d08bbee4419178f7bf9ee7701385c981b94fe81a60438f486c8bea2c048b1bdaf1387265e2d4a1ed4cec2558b7f7fa6d69916c5abbb0b7689a9

  • C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\RIPCServer.dll

    Filesize

    150KB

    MD5

    59068498190113e051d94fd0b5ef98aa

    SHA1

    6b64bb29763c43a86a4be87fcbc94b2f4697ced3

    SHA256

    097c87769734699254c4f85a6268539c2d90245650930f44d245e75bcc4a3e46

    SHA512

    f7093d9b544fcbd3d7336b42eb9c79e17aa2b01910b3a1a23e23036d6230116e1dc3bde0602ab18efcd53c184c77d57348b2dea889c313a4a605d0714ec35ef8

  • C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\RWLN.dll

    Filesize

    966KB

    MD5

    56c10161ff350d143fe51affe777d19f

    SHA1

    54abec9bcf95904b666fa5dbdc9b976acb59e79d

    SHA256

    4d4dd771e72a4654063dfb06dafef1fd0701ed93c407e68b0f10782e453564c8

    SHA512

    229fdf7503f76ed00f05711c58d1978df9327b085c750873714a52e10db7d53bc702e800d280bb086faa3b360f0b2eecf7aa953b0f9ed1be7eabdd9793493d85

  • C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Russian.lg

    Filesize

    57KB

    MD5

    cc99020d311e97d6127ab9ddd44c980b

    SHA1

    57746de06ba0f206f6ef34c453b5d5cc1f00e136

    SHA256

    37c133f5c437a56c85ee3ca4c921f61c4532b375975c2b2dd9b4b5983e51c66b

    SHA512

    4122f3ef2e454382967ab3ac4e7d5f44f5156b0a97e6ebe98467d399a4281a72bc1a87f26b7f67893a64dbcb6d34e1b7775effaff969e87873b42c43eca336fa

  • C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\branding.ini

    Filesize

    428B

    MD5

    6b948f51b8645b3a315a5466b615e3c7

    SHA1

    e96926a39e6a41f1dd40a564d0cfa80edd6e70a4

    SHA256

    ee7c0246e8c9f100c7acbd09bed0d7633f4f9bd9095c56fc6f64c74c83d61768

    SHA512

    674ed59e744e99f492d576eb8c1736e0d4b34c9a25fe87fb4dbae4c7fb76c1a45731a3f4eb7823eaae0567da269d6041706b06782047dd1b5ad9c6b494c649cd

  • C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\config.txt

    Filesize

    86B

    MD5

    90b15937ff9ec75f7016e171bd1261ce

    SHA1

    3fa80c58e8bf6c3ab356047cfaa14187328c3732

    SHA256

    eb35f14c5463a76bdeef12596c09894e137cd40d0998d2a717ae2d1f572bc37a

    SHA512

    993aa4eb890a79c469849cf3b55e474def3b14beb72ca4785de38976b753a2aface4bb6b45515f9d7cfe2a99e11d530f694a2d95625c3bb16ae70740509ba95a

  • C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\install.cmd

    Filesize

    25B

    MD5

    9b7ac054975f8f7b6fe9a41a18e2d6e7

    SHA1

    d820008d3732f37a7e4030c4bd414e3764de1af7

    SHA256

    815255a94853b2677f84ad15ff188f66a7e1ccd700bc7bf94afa05e2f4992255

    SHA512

    806d3161399eef58c87e7a14b850641c025bd0bfd98b827a16c2323402fc67a11db0b6714887d4a3be029f383ba9bdb75993b86d406208bc295b63f15f969cc9

  • C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\logo.png

    Filesize

    754KB

    MD5

    8c36cac6a4b532366bd357139715f64f

    SHA1

    a05f193ccb47474323598df7325a9cf2400da91c

    SHA256

    49529ab38016ca0fa715456b0eed7569741b7370f0bb828b6d21edcdd8730b0a

    SHA512

    eaa525dc4138b6df7f4cb24a37a413fe1446fb20b852fadc284ebd2636177900553e5794d2da0af3e6a33cf07b003359f0622477157f57587eb524494095e564

  • C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\rfusclient.exe

    Filesize

    5.5MB

    MD5

    b274f6fe4595bd970e2a14ca27c0ed51

    SHA1

    1829e2c4c725e363b566dd0267265dd84f3f924d

    SHA256

    6a285042cf70fc2087c828891d17cc33b33902943a74fec778dc88420ebd05a0

    SHA512

    237d524b345cff6c28bba6aec5e28d3edfc48be04277e0157ede932c857797eac1670cdb1a4979f40f19c3e6635335c944fca03f8c446570c39f5fd5ef8379de

  • C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\rfusclient.exe

    Filesize

    5.5MB

    MD5

    b274f6fe4595bd970e2a14ca27c0ed51

    SHA1

    1829e2c4c725e363b566dd0267265dd84f3f924d

    SHA256

    6a285042cf70fc2087c828891d17cc33b33902943a74fec778dc88420ebd05a0

    SHA512

    237d524b345cff6c28bba6aec5e28d3edfc48be04277e0157ede932c857797eac1670cdb1a4979f40f19c3e6635335c944fca03f8c446570c39f5fd5ef8379de

  • C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\rutserv.exe

    Filesize

    9.5MB

    MD5

    d10dae1197db0b694c832ae512b34024

    SHA1

    24757c07c814d53ded645547bc53e29c98919077

    SHA256

    74892811c87f574aea6d8b3a5419845a58096deaece96a9c6f06e5ad4f8859be

    SHA512

    f968b9084c51aa3b4f24cf99ee0d354f323d435ad7c15a884bf16dc3b8d67f721d4c7bb5f111a44033a15d820f58e813e0dccbf1f84bd3ca736a0c57bd98395e

  • C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\settings.dat

    Filesize

    5KB

    MD5

    b16ea675ebd94251048b55bfb0fc9c2a

    SHA1

    b39e923cfeca6d05de88f3a815af42cc754905af

    SHA256

    5b13a17d77f6f8eec9f20c3155bfdc39d09c5b668929fc46295b480b896851b0

    SHA512

    03636f9c47bb0c85ce76b3a6439da42ec94c9417dffeebe292566bda2620f31d4b0836fe38bfb5e4d3299d192a6aa34eed867bc1f8ba050dad344ddbe30c2959

  • C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\vp8decoder.dll

    Filesize

    380KB

    MD5

    1ea62293ac757a0c2b64e632f30db636

    SHA1

    8c8ac6f8f28f432a514c3a43ea50c90daf66bfba

    SHA256

    970cb3e00fa68daec266cd0aa6149d3604cb696853772f20ad67555a2114d5df

    SHA512

    857872a260cd590bd533b5d72e6e830bb0e4e037cb6749bb7d6e1239297f21606cdbe4a0fb1492cdead6f46c88dd9eb6fab5c6e17029f7df5231cefc21fa35ab

  • C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\vp8encoder.dll

    Filesize

    1.6MB

    MD5

    89770647609ac26c1bbd9cf6ed50954e

    SHA1

    349eed120070bab7e96272697b39e786423ac1d3

    SHA256

    7b4fc8e104914cdd6a7bf3f05c0d7197cfcd30a741cc0856155f2c74e62005a4

    SHA512

    a98688f1c80ca79ee8d15d680a61420ffb49f55607fa25711925735d0e8dbc21f3b13d470f22e0829c72a66a798eee163411b2f078113ad8153eed98ef37a2cc

  • C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\webmmux.dll

    Filesize

    260KB

    MD5

    d29f7070ee379544aeb19913621c88e6

    SHA1

    499dcdb39862fd8ff5cbc4b13da9c465bfd5f4be

    SHA256

    654f43108fbd56bd2a3c5a3a74a2ff3f19ea9e670613b92a624e86747a496caf

    SHA512

    4ead1c8e0d33f2a6c35163c42e8f0630954de67e63bcadca003691635ccf8bfe709363ec88edb387b956535fdb476bc0b5773ede5b19cacf4858fb50072bbef5

  • C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\webmvorbisdecoder.dll

    Filesize

    365KB

    MD5

    7a9eeac3ceaf7f95f44eb5c57b4db2e3

    SHA1

    be1048c254aa3114358f76d08c55667c4bf2d382

    SHA256

    b497d07ed995b16d1146209158d3b90d85c47a643fbf25a5158b26d75c478c88

    SHA512

    b68fa132c3588637d62a1c2bce8f8acc78e6e2f904a53644d732dc0f4e4fbc61a2829a1ac8f6b97fe4be4f3613ef92c43e6f2ab29c6abd968acc5acd635c990d

  • C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\webmvorbisencoder.dll

    Filesize

    860KB

    MD5

    5308b9945e348fbe3a480be06885434c

    SHA1

    5c3cb39686cca3e9586e4b405fc8e1853caaf8ff

    SHA256

    9dc30fb2118aad48f6a5e0a82504f365fe40abb3134f6cceeb65859f61ad939a

    SHA512

    4d7f08dc738a944bcee9b013b13d595e9c913b248c42a6c095cbdfc6059da7f04cca935841ff8a43687b75bdc5af05e888241e52ef594aa752ba9425cf966412

  • C:\Users\Admin\AppData\Roaming\RMS-Agent\68001\D12D2E4C77\rfusclient.exe

    Filesize

    5.5MB

    MD5

    b274f6fe4595bd970e2a14ca27c0ed51

    SHA1

    1829e2c4c725e363b566dd0267265dd84f3f924d

    SHA256

    6a285042cf70fc2087c828891d17cc33b33902943a74fec778dc88420ebd05a0

    SHA512

    237d524b345cff6c28bba6aec5e28d3edfc48be04277e0157ede932c857797eac1670cdb1a4979f40f19c3e6635335c944fca03f8c446570c39f5fd5ef8379de

  • C:\Users\Admin\AppData\Roaming\RMS-Agent\68001\D12D2E4C77\rfusclient.exe

    Filesize

    5.5MB

    MD5

    b274f6fe4595bd970e2a14ca27c0ed51

    SHA1

    1829e2c4c725e363b566dd0267265dd84f3f924d

    SHA256

    6a285042cf70fc2087c828891d17cc33b33902943a74fec778dc88420ebd05a0

    SHA512

    237d524b345cff6c28bba6aec5e28d3edfc48be04277e0157ede932c857797eac1670cdb1a4979f40f19c3e6635335c944fca03f8c446570c39f5fd5ef8379de

  • C:\Users\Admin\AppData\Roaming\RMS-Agent\68001\D12D2E4C77\rfusclient.exe

    Filesize

    5.5MB

    MD5

    b274f6fe4595bd970e2a14ca27c0ed51

    SHA1

    1829e2c4c725e363b566dd0267265dd84f3f924d

    SHA256

    6a285042cf70fc2087c828891d17cc33b33902943a74fec778dc88420ebd05a0

    SHA512

    237d524b345cff6c28bba6aec5e28d3edfc48be04277e0157ede932c857797eac1670cdb1a4979f40f19c3e6635335c944fca03f8c446570c39f5fd5ef8379de

  • C:\Users\Admin\AppData\Roaming\RMS-Agent\68001\D12D2E4C77\rutserv.exe

    Filesize

    9.5MB

    MD5

    d10dae1197db0b694c832ae512b34024

    SHA1

    24757c07c814d53ded645547bc53e29c98919077

    SHA256

    74892811c87f574aea6d8b3a5419845a58096deaece96a9c6f06e5ad4f8859be

    SHA512

    f968b9084c51aa3b4f24cf99ee0d354f323d435ad7c15a884bf16dc3b8d67f721d4c7bb5f111a44033a15d820f58e813e0dccbf1f84bd3ca736a0c57bd98395e

  • C:\Users\Admin\AppData\Roaming\RMS-Agent\68001\D12D2E4C77\rutserv.exe

    Filesize

    9.5MB

    MD5

    d10dae1197db0b694c832ae512b34024

    SHA1

    24757c07c814d53ded645547bc53e29c98919077

    SHA256

    74892811c87f574aea6d8b3a5419845a58096deaece96a9c6f06e5ad4f8859be

    SHA512

    f968b9084c51aa3b4f24cf99ee0d354f323d435ad7c15a884bf16dc3b8d67f721d4c7bb5f111a44033a15d820f58e813e0dccbf1f84bd3ca736a0c57bd98395e

  • \Users\Admin\AppData\Local\Temp\7ZipSfx.000\rfusclient.exe

    Filesize

    5.5MB

    MD5

    b274f6fe4595bd970e2a14ca27c0ed51

    SHA1

    1829e2c4c725e363b566dd0267265dd84f3f924d

    SHA256

    6a285042cf70fc2087c828891d17cc33b33902943a74fec778dc88420ebd05a0

    SHA512

    237d524b345cff6c28bba6aec5e28d3edfc48be04277e0157ede932c857797eac1670cdb1a4979f40f19c3e6635335c944fca03f8c446570c39f5fd5ef8379de

  • \Users\Admin\AppData\Local\Temp\7ZipSfx.000\rfusclient.exe

    Filesize

    5.5MB

    MD5

    b274f6fe4595bd970e2a14ca27c0ed51

    SHA1

    1829e2c4c725e363b566dd0267265dd84f3f924d

    SHA256

    6a285042cf70fc2087c828891d17cc33b33902943a74fec778dc88420ebd05a0

    SHA512

    237d524b345cff6c28bba6aec5e28d3edfc48be04277e0157ede932c857797eac1670cdb1a4979f40f19c3e6635335c944fca03f8c446570c39f5fd5ef8379de

  • \Users\Admin\AppData\Roaming\RMS-Agent\68001\D12D2E4C77\rfusclient.exe

    Filesize

    5.5MB

    MD5

    b274f6fe4595bd970e2a14ca27c0ed51

    SHA1

    1829e2c4c725e363b566dd0267265dd84f3f924d

    SHA256

    6a285042cf70fc2087c828891d17cc33b33902943a74fec778dc88420ebd05a0

    SHA512

    237d524b345cff6c28bba6aec5e28d3edfc48be04277e0157ede932c857797eac1670cdb1a4979f40f19c3e6635335c944fca03f8c446570c39f5fd5ef8379de

  • \Users\Admin\AppData\Roaming\RMS-Agent\68001\D12D2E4C77\rutserv.exe

    Filesize

    9.5MB

    MD5

    d10dae1197db0b694c832ae512b34024

    SHA1

    24757c07c814d53ded645547bc53e29c98919077

    SHA256

    74892811c87f574aea6d8b3a5419845a58096deaece96a9c6f06e5ad4f8859be

    SHA512

    f968b9084c51aa3b4f24cf99ee0d354f323d435ad7c15a884bf16dc3b8d67f721d4c7bb5f111a44033a15d820f58e813e0dccbf1f84bd3ca736a0c57bd98395e

  • \Users\Admin\AppData\Roaming\RMS-Agent\68001\D12D2E4C77\rutserv.exe

    Filesize

    9.5MB

    MD5

    d10dae1197db0b694c832ae512b34024

    SHA1

    24757c07c814d53ded645547bc53e29c98919077

    SHA256

    74892811c87f574aea6d8b3a5419845a58096deaece96a9c6f06e5ad4f8859be

    SHA512

    f968b9084c51aa3b4f24cf99ee0d354f323d435ad7c15a884bf16dc3b8d67f721d4c7bb5f111a44033a15d820f58e813e0dccbf1f84bd3ca736a0c57bd98395e

  • \Users\Admin\AppData\Roaming\RMS-Agent\68001\D12D2E4C77\rutserv.exe

    Filesize

    9.5MB

    MD5

    d10dae1197db0b694c832ae512b34024

    SHA1

    24757c07c814d53ded645547bc53e29c98919077

    SHA256

    74892811c87f574aea6d8b3a5419845a58096deaece96a9c6f06e5ad4f8859be

    SHA512

    f968b9084c51aa3b4f24cf99ee0d354f323d435ad7c15a884bf16dc3b8d67f721d4c7bb5f111a44033a15d820f58e813e0dccbf1f84bd3ca736a0c57bd98395e

  • \Users\Admin\AppData\Roaming\RMS-Agent\68001\D12D2E4C77\rutserv.exe

    Filesize

    9.5MB

    MD5

    d10dae1197db0b694c832ae512b34024

    SHA1

    24757c07c814d53ded645547bc53e29c98919077

    SHA256

    74892811c87f574aea6d8b3a5419845a58096deaece96a9c6f06e5ad4f8859be

    SHA512

    f968b9084c51aa3b4f24cf99ee0d354f323d435ad7c15a884bf16dc3b8d67f721d4c7bb5f111a44033a15d820f58e813e0dccbf1f84bd3ca736a0c57bd98395e

  • memory/960-54-0x0000000075801000-0x0000000075803000-memory.dmp

    Filesize

    8KB