Analysis

  • max time kernel
    151s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    28-04-2021 07:04

General

  • Target

    hsCNXH5WfPktCMH.exe

  • Size

    1.1MB

  • MD5

    e5a2da8ed26dafdba1593c27e93fe424

  • SHA1

    9b365ea6cc2a88b2a32d56f4a079ea3fa7a1a6b9

  • SHA256

    d65a05ac95914160ce98904bf3f203f99d8261dbda038d2309419d345f78e2d8

  • SHA512

    79e7cd6dd43674c7e6a187e7aa4c895b149b4aefc445b18457956a7edde66ba6981e18933c63331786445d36e221f14da5dcab0602b40bed6b9940110adc8d1d

Malware Config

Extracted

Family

remcos

C2

217.138.212.58:52667

Signatures

  • Remcos

    Remcos is a closed-source remote control and surveillance software.

  • UAC bypass 3 TTPs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Modifies registry key 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\hsCNXH5WfPktCMH.exe
    "C:\Users\Admin\AppData\Local\Temp\hsCNXH5WfPktCMH.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1056
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\hsCNXH5WfPktCMH.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:580
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\NgFXSXBboDHspt.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:812
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\NgFXSXBboDHspt" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9FB9.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1108
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\NgFXSXBboDHspt.exe"
      2⤵
        PID:516
      • C:\Users\Admin\AppData\Local\Temp\hsCNXH5WfPktCMH.exe
        "C:\Users\Admin\AppData\Local\Temp\hsCNXH5WfPktCMH.exe"
        2⤵
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:780
        • C:\Windows\SysWOW64\cmd.exe
          /k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1592
          • C:\Windows\SysWOW64\reg.exe
            C:\Windows\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
            4⤵
            • Modifies registry key
            PID:2016

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Scheduled Task

    1
    T1053

    Persistence

    Scheduled Task

    1
    T1053

    Privilege Escalation

    Bypass User Account Control

    1
    T1088

    Scheduled Task

    1
    T1053

    Defense Evasion

    Bypass User Account Control

    1
    T1088

    Disabling Security Tools

    1
    T1089

    Modify Registry

    2
    T1112

    Discovery

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_12f4527f-69df-41fe-ade8-2d5b04cecb22
      MD5

      d89968acfbd0cd60b51df04860d99896

      SHA1

      b3c29916ccb81ce98f95bbf3aa8a73de16298b29

      SHA256

      1020cc7c929cd5a4e68ccb40353ca76f427df363f0d95e456eb79db039bdb2b9

      SHA512

      b0e886cce598371b59131fed1535e220c798691bad93ef9474ba440066f5a6bd77a60966604b7a5ff6298b2e200c9dd0c8f9f04aff208b2af423480ead4e8842

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_1602f747-c1a3-4345-8dec-4dcb8b1f72e5
      MD5

      02ff38ac870de39782aeee04d7b48231

      SHA1

      0390d39fa216c9b0ecdb38238304e518fb2b5095

      SHA256

      fbd66a9baf753db31b8de23f2d51b67f8676687503653103080c45b16f1dc876

      SHA512

      24a1ff76ee42ff7a5ea42843928c4df07b06178f7781cd840e1e086e88735d81506eb67259ff1e6ce5aaa7c5baea03886da265eb7e025ff4dc4c4b5f8cd3e341

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_2d686436-375c-4ee1-bd4a-9e44ccd248ba
      MD5

      75a8da7754349b38d64c87c938545b1b

      SHA1

      5c28c257d51f1c1587e29164cc03ea880c21b417

      SHA256

      bf08151c174b5d00c9dbc7907b2c6a01b4be76bfa3afce1e8bd98a04ad833c96

      SHA512

      798797bc74c56c874e9a5fdcb0157c04e37a1b3cce285ef064b01bceef8cec45f11a5198918c6c647220b62883606b5e12e3cca3ea369f3a66e69dea6e15f643

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_4375eeb7-a65d-43f1-a616-02c5ad6c5370
      MD5

      be4d72095faf84233ac17b94744f7084

      SHA1

      cc78ce5b9c57573bd214a8f423ee622b00ebb1ec

      SHA256

      b0d72c5c22e57913476ac8fc686a4593f137c6667d5094522c0a0685dabd7adc

      SHA512

      43856e9b1032b8690ceea810c931bed3655e9190414bb220fb6afc136f31b8335e07604dffb28405d4006f266a54cff424c527d29924b1b732c9647a3252b097

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_6fe5bd95-2cea-4aea-9c8c-dd67bac4295b
      MD5

      df44874327d79bd75e4264cb8dc01811

      SHA1

      1396b06debed65ea93c24998d244edebd3c0209d

      SHA256

      55de642c5c9e436ec01c57004dae797022442c3245daf7162d19a5585f221181

      SHA512

      95dc9298b8db059bbe746f67e6a7f8515781c7053cc60c01532e47623a996be7e1bd23d1bd8f5f2045adff27454f44930d503c15b695690088841cedbd2a06c3

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_7c2436e9-afc3-4268-9f9d-916bf496fd2c
      MD5

      354b8209f647a42e2ce36d8cf326cc92

      SHA1

      98c3117f797df69935f8b09fc9e95accfe3d8346

      SHA256

      feae405d288fdd38438f9d9b54f791f3ce3805f1bb88780da5aca402ad372239

      SHA512

      420be869b58e9a7a2c31f2550ac269df832935692a6431d455a10d9b426781e79d91e30ace2c465633b8a7ff2be1bf49734d8b99a390090dc4b36411d4391ff0

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_80b8efb4-b91d-4b16-9304-3908ef927ae6
      MD5

      7f79b990cb5ed648f9e583fe35527aa7

      SHA1

      71b177b48c8bd745ef02c2affad79ca222da7c33

      SHA256

      080ec69d3f2abac629a0bdc314f150ad42a9a1b0a031b1d5c7b5b80051c48683

      SHA512

      20926edf7f0b990da4bd8d7ba91bd8bf7b952b75080f687afa7197a91777604688303d38b4a0a7240b558c23f2e0cd927d3590765109f8be0551f5eb050eafda

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_a35ff912-12b8-46eb-9ae1-92421cccfa0d
      MD5

      a70ee38af4bb2b5ed3eeb7cbd1a12fa3

      SHA1

      81dbaeae4b0f9e1adc0a1e3d6d76a12396498ba9

      SHA256

      dd2f41f92f19c3fe031bdf5da68ab06768e26762d0077b290cd0094df1d5d58d

      SHA512

      8c69a5300c7545c5c4b25a0594e6813b6b7a85b5f3ae7fc5464b4074fe6f50b2f49d31cacf19bc20a02bb8e237656f1b9b2a3f6a3953e3a8478ca2adc154e0e3

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_bc2fe8ee-69c0-48ce-8821-1fab80ab4eeb
      MD5

      597009ea0430a463753e0f5b1d1a249e

      SHA1

      4e38b8bb65ecbd5c9f0d3d8c47f7caba33de6c62

      SHA256

      3fd2a8217a845c43dbc0dc206c28be81d2687aa9ba62019d905aef10cfaec45d

      SHA512

      5d722fa908e64575b2497c60d142e182011a10c6ed33813b3b4796b3147ece1bc96938518b4c8911a1bac3b7560528ebe3e8e754c11015516d335df5d7c6871d

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_fa12b0a1-3d6a-4bab-a74a-253a75ca0598
      MD5

      5e3c7184a75d42dda1a83606a45001d8

      SHA1

      94ca15637721d88f30eb4b6220b805c5be0360ed

      SHA256

      8278033a65d1ff48be4d86e11f87930d187692f59f8bf2f0a9d170de285afb59

      SHA512

      fae99b6e9b106e0f1c30aa4082b25ae1ad643455c1295c2c16ad534e3e611b9b08492353ffe1af1cfdddc9b2b7c330747a64012c45e62b8f4a4982dcc214e05b

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_fd9bf4da-ec38-4847-85c5-d50f35796d4c
      MD5

      a725bb9fafcf91f3c6b7861a2bde6db2

      SHA1

      8bb5b83f3cc37ff1e5ea4f02acae38e72364c114

      SHA256

      51651f27f54c7261887037aa1de4eff0a26c6807906dfc34a15cd5a0b58a8431

      SHA512

      1c4b21dd5660bfec8347257bb3da64681b0a97c427790d9ab3484f687dac032bcff0e07876635953697b00cf83e7d37f97c44e0219627fd0533f60ed3024b97e

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_fe80cd26-0cf7-4e38-9884-6dab53b04ca9
      MD5

      b6d38f250ccc9003dd70efd3b778117f

      SHA1

      d5a17c02cac698d4f0a4a9b7d71db2aa19e3f18a

      SHA256

      4de9d7b5ccab7b67ca8efc83084c7ee6e5e872b7216ed4683bc5da950bf41265

      SHA512

      67d8195836b7f280d3f9219fd0f58276342e55d5dfdd8a4c54355030d96685d73f1b2b6da0eb39322ec7c3a1d1c5ef06b52d22646cea30a96f822de1800d31e9

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheIndex
      MD5

      78d1b03d1776076d76674562c57f8755

      SHA1

      afe531ad7742e1ed8e1d3cc49a5732d084fe62d9

      SHA256

      a79ba763cd6eb9279b9181ab53b78e759828457508edae1276b024bfbbb50b31

      SHA512

      2dbb3847839f8b3706a9d563674f5eb06eec89c33b00b7509483ecfc01e5bd8b7d28a5ebad04f6842d104285b5110a8ecb7048a1d11e1e0702cbebf6681e93dd

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheIndex
      MD5

      a2b6c7e9de5c4a0183b481445025e486

      SHA1

      7ece1372e4bb2d332c3e000c3728712d9016ee9d

      SHA256

      4fb3f9f27f74c4b221b84be98a612947871a1665607bdde1ca783f6eda77648f

      SHA512

      f21266e090350d3c3049a6b198a15d5b8a7dd4d1880674786824b6acec764f049143a0d92269f4bd4fa3ce08129c2081e623b0dab59efcfd26c9ddc745c3e826

    • C:\Users\Admin\AppData\Local\Temp\tmp9FB9.tmp
      MD5

      cff6e4ad96ad3777af50543d832c6f74

      SHA1

      37d0db441cd09f99fac8c3805ca0a21475eba207

      SHA256

      c6b2c10b4daa0a56bd541737f671a1456a8bbb9e7d82e673de8110e93571d809

      SHA512

      f56dd3dc50fb2288b33949582c0a8c947b4c78356ce41c1c8b7d7d10f36378446fdc1be034e21641d285f31f281febe1e0362e5565545b7583b005a767c72a91

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
      MD5

      44e8b98c234b3d1a2c5902e5dec63a28

      SHA1

      d5c026143b79642e28123693b6d6432195d49db1

      SHA256

      2e28be2f3584a5adee3dd61f496be12948c2e8decf209e332a21f480bda33254

      SHA512

      93f3f9da4d316339da4326c64fa28faf5f2c72e224b8b150b1b9ad96cfa1e6cd691ebb05b61077fb048fb872c05f0dedf42509249f20de36d2f6ad378c6a307e

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
      MD5

      44e8b98c234b3d1a2c5902e5dec63a28

      SHA1

      d5c026143b79642e28123693b6d6432195d49db1

      SHA256

      2e28be2f3584a5adee3dd61f496be12948c2e8decf209e332a21f480bda33254

      SHA512

      93f3f9da4d316339da4326c64fa28faf5f2c72e224b8b150b1b9ad96cfa1e6cd691ebb05b61077fb048fb872c05f0dedf42509249f20de36d2f6ad378c6a307e

    • memory/516-81-0x0000000000000000-mapping.dmp
    • memory/516-93-0x00000000025B0000-0x00000000031FA000-memory.dmp
      Filesize

      12.3MB

    • memory/580-72-0x0000000000EB0000-0x0000000000EB1000-memory.dmp
      Filesize

      4KB

    • memory/580-66-0x0000000000000000-mapping.dmp
    • memory/580-79-0x00000000049C2000-0x00000000049C3000-memory.dmp
      Filesize

      4KB

    • memory/580-77-0x00000000049C0000-0x00000000049C1000-memory.dmp
      Filesize

      4KB

    • memory/580-67-0x00000000766D1000-0x00000000766D3000-memory.dmp
      Filesize

      8KB

    • memory/580-90-0x0000000001060000-0x0000000001061000-memory.dmp
      Filesize

      4KB

    • memory/580-74-0x0000000004A00000-0x0000000004A01000-memory.dmp
      Filesize

      4KB

    • memory/780-83-0x000000000042EEEF-mapping.dmp
    • memory/780-92-0x0000000000400000-0x0000000000478000-memory.dmp
      Filesize

      480KB

    • memory/780-82-0x0000000000400000-0x0000000000478000-memory.dmp
      Filesize

      480KB

    • memory/812-112-0x0000000006280000-0x0000000006281000-memory.dmp
      Filesize

      4KB

    • memory/812-68-0x0000000000000000-mapping.dmp
    • memory/812-104-0x0000000006170000-0x0000000006171000-memory.dmp
      Filesize

      4KB

    • memory/812-80-0x0000000000C72000-0x0000000000C73000-memory.dmp
      Filesize

      4KB

    • memory/812-103-0x00000000060A0000-0x00000000060A1000-memory.dmp
      Filesize

      4KB

    • memory/812-78-0x0000000000C70000-0x0000000000C71000-memory.dmp
      Filesize

      4KB

    • memory/812-98-0x0000000005690000-0x0000000005691000-memory.dmp
      Filesize

      4KB

    • memory/812-94-0x0000000005290000-0x0000000005291000-memory.dmp
      Filesize

      4KB

    • memory/812-106-0x000000007EF30000-0x000000007EF31000-memory.dmp
      Filesize

      4KB

    • memory/812-119-0x0000000005650000-0x0000000005651000-memory.dmp
      Filesize

      4KB

    • memory/812-135-0x0000000006310000-0x0000000006311000-memory.dmp
      Filesize

      4KB

    • memory/812-134-0x0000000006300000-0x0000000006301000-memory.dmp
      Filesize

      4KB

    • memory/1056-60-0x0000000000880000-0x0000000000881000-memory.dmp
      Filesize

      4KB

    • memory/1056-65-0x0000000005330000-0x00000000053A8000-memory.dmp
      Filesize

      480KB

    • memory/1056-64-0x0000000005230000-0x00000000052DD000-memory.dmp
      Filesize

      692KB

    • memory/1056-63-0x00000000003E0000-0x00000000003ED000-memory.dmp
      Filesize

      52KB

    • memory/1056-62-0x0000000000530000-0x0000000000531000-memory.dmp
      Filesize

      4KB

    • memory/1108-70-0x0000000000000000-mapping.dmp
    • memory/1592-85-0x0000000000000000-mapping.dmp
    • memory/2016-88-0x0000000000000000-mapping.dmp