Analysis

  • max time kernel
    178s
  • max time network
    181s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    11-10-2023 14:08

General

  • Target

    4ff54bc771dc97403996794c50ded1a97b000c3f6eeff64afe3d049735e6bcdc_JC.exe

  • Size

    863KB

  • MD5

    62304ab9ea09befcc17d78857c685533

  • SHA1

    989d919493942e6da3809bf8c8c95945627797fe

  • SHA256

    4ff54bc771dc97403996794c50ded1a97b000c3f6eeff64afe3d049735e6bcdc

  • SHA512

    9e29ac63d6e9d260265126ab11e4ea6d2283f1ed34d1bfad76f4fec6e45cddd1574f5e046edc0811976bee3f15059c365deec07f0f9509e4505871d0272bc28b

  • SSDEEP

    12288:RUgkR5725KtZs1L1fG+fzdX3mJwQlC6sDwhyxLU1KUT55/swI2J7Z3nFxecfSNcg:RUanF1e+bdXK1IegUbEwIoXmcB+yi1

Score
10/10

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

167.114.189.33:2404

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    Remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-7ZDF66

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

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

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

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 41 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4ff54bc771dc97403996794c50ded1a97b000c3f6eeff64afe3d049735e6bcdc_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\4ff54bc771dc97403996794c50ded1a97b000c3f6eeff64afe3d049735e6bcdc_JC.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3028
    • 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\4ff54bc771dc97403996794c50ded1a97b000c3f6eeff64afe3d049735e6bcdc_JC.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2520
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\afUoHw.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2540
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\afUoHw" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD318.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2492
    • C:\Users\Admin\AppData\Local\Temp\4ff54bc771dc97403996794c50ded1a97b000c3f6eeff64afe3d049735e6bcdc_JC.exe
      "C:\Users\Admin\AppData\Local\Temp\4ff54bc771dc97403996794c50ded1a97b000c3f6eeff64afe3d049735e6bcdc_JC.exe"
      2⤵
        PID:312
      • C:\Users\Admin\AppData\Local\Temp\4ff54bc771dc97403996794c50ded1a97b000c3f6eeff64afe3d049735e6bcdc_JC.exe
        "C:\Users\Admin\AppData\Local\Temp\4ff54bc771dc97403996794c50ded1a97b000c3f6eeff64afe3d049735e6bcdc_JC.exe"
        2⤵
          PID:1532
        • C:\Users\Admin\AppData\Local\Temp\4ff54bc771dc97403996794c50ded1a97b000c3f6eeff64afe3d049735e6bcdc_JC.exe
          "C:\Users\Admin\AppData\Local\Temp\4ff54bc771dc97403996794c50ded1a97b000c3f6eeff64afe3d049735e6bcdc_JC.exe"
          2⤵
          • Suspicious use of SetWindowsHookEx
          PID:320

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\ProgramData\remcos\logs.dat

        Filesize

        144B

        MD5

        476e439cc2ecf017b39ca2104957b35d

        SHA1

        ded9c4e4d5d692055489f8074c83a52b31f8e2e3

        SHA256

        8d70856369915f8bbcf58f86b6a2de05e1d8904a7747f95a84fb6bb5ebe7c994

        SHA512

        e226b9f80985b2ed41c68e07ac77c78f10a0056a5cac539fdc969cfa718347e3284ebaf1f6f5e0d87a017643b3b0d182a0410b638255a876c9251bc79d588c63

      • C:\Users\Admin\AppData\Local\Temp\tmpD318.tmp

        Filesize

        1KB

        MD5

        4cb0f513fba7f081d2c9c928431c8c62

        SHA1

        ae55d3275e15fbc25440297d6449702bcb8c1540

        SHA256

        ebf040fad4116197b2e856c03f7ab28c7a6e97dc9909e9d1cee4e8be20a71ef7

        SHA512

        fcaf68d172379564d672bb7c33355fd29ea72787c02df3e9acc0460be720e7d4b48650ebbf5d88aa8b97a31868156d29cbfc583b3b55046de951db2a62ce5d29

      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\0N2IT047DK48XXL6CXK3.temp

        Filesize

        7KB

        MD5

        1399f8f04e76d49dcfb2ba4cf3a7a7f8

        SHA1

        43827d62e8762f1d1f5d38da9f49cb117f983493

        SHA256

        e17f5d06bda91674efb596adbcf852ac1ab0782ef6a09bc6cf2b9fbd45f7fdad

        SHA512

        c990f1cf5cdd74dc79fcf38db14dd3251186e3fe927a1521a2b69cbaf4233ed185a7f94d06d2fb3061db1574224507c9504a74f46478a67dc0930a91caa27f75

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

        Filesize

        7KB

        MD5

        1399f8f04e76d49dcfb2ba4cf3a7a7f8

        SHA1

        43827d62e8762f1d1f5d38da9f49cb117f983493

        SHA256

        e17f5d06bda91674efb596adbcf852ac1ab0782ef6a09bc6cf2b9fbd45f7fdad

        SHA512

        c990f1cf5cdd74dc79fcf38db14dd3251186e3fe927a1521a2b69cbaf4233ed185a7f94d06d2fb3061db1574224507c9504a74f46478a67dc0930a91caa27f75

      • memory/320-52-0x0000000000400000-0x0000000000481000-memory.dmp

        Filesize

        516KB

      • memory/320-54-0x0000000000400000-0x0000000000481000-memory.dmp

        Filesize

        516KB

      • memory/320-40-0x0000000000400000-0x0000000000481000-memory.dmp

        Filesize

        516KB

      • memory/320-39-0x0000000000400000-0x0000000000481000-memory.dmp

        Filesize

        516KB

      • memory/320-67-0x0000000000400000-0x0000000000481000-memory.dmp

        Filesize

        516KB

      • memory/320-64-0x0000000000400000-0x0000000000481000-memory.dmp

        Filesize

        516KB

      • memory/320-61-0x0000000000400000-0x0000000000481000-memory.dmp

        Filesize

        516KB

      • memory/320-57-0x0000000000400000-0x0000000000481000-memory.dmp

        Filesize

        516KB

      • memory/320-56-0x0000000000400000-0x0000000000481000-memory.dmp

        Filesize

        516KB

      • memory/320-55-0x0000000000400000-0x0000000000481000-memory.dmp

        Filesize

        516KB

      • memory/320-53-0x0000000000400000-0x0000000000481000-memory.dmp

        Filesize

        516KB

      • memory/320-50-0x0000000000400000-0x0000000000481000-memory.dmp

        Filesize

        516KB

      • memory/320-49-0x0000000000400000-0x0000000000481000-memory.dmp

        Filesize

        516KB

      • memory/320-48-0x0000000000400000-0x0000000000481000-memory.dmp

        Filesize

        516KB

      • memory/320-45-0x0000000000400000-0x0000000000481000-memory.dmp

        Filesize

        516KB

      • memory/320-43-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/320-42-0x0000000000400000-0x0000000000481000-memory.dmp

        Filesize

        516KB

      • memory/320-41-0x0000000000400000-0x0000000000481000-memory.dmp

        Filesize

        516KB

      • memory/320-33-0x0000000000400000-0x0000000000481000-memory.dmp

        Filesize

        516KB

      • memory/320-35-0x0000000000400000-0x0000000000481000-memory.dmp

        Filesize

        516KB

      • memory/320-37-0x0000000000400000-0x0000000000481000-memory.dmp

        Filesize

        516KB

      • memory/320-38-0x0000000000400000-0x0000000000481000-memory.dmp

        Filesize

        516KB

      • memory/320-68-0x0000000000400000-0x0000000000481000-memory.dmp

        Filesize

        516KB

      • memory/2520-26-0x000000006F3F0000-0x000000006F99B000-memory.dmp

        Filesize

        5.7MB

      • memory/2520-31-0x0000000002590000-0x00000000025D0000-memory.dmp

        Filesize

        256KB

      • memory/2520-28-0x0000000002590000-0x00000000025D0000-memory.dmp

        Filesize

        256KB

      • memory/2520-59-0x000000006F3F0000-0x000000006F99B000-memory.dmp

        Filesize

        5.7MB

      • memory/2520-24-0x0000000002590000-0x00000000025D0000-memory.dmp

        Filesize

        256KB

      • memory/2520-21-0x000000006F3F0000-0x000000006F99B000-memory.dmp

        Filesize

        5.7MB

      • memory/2540-23-0x000000006F3F0000-0x000000006F99B000-memory.dmp

        Filesize

        5.7MB

      • memory/2540-27-0x00000000026C0000-0x0000000002700000-memory.dmp

        Filesize

        256KB

      • memory/2540-58-0x000000006F3F0000-0x000000006F99B000-memory.dmp

        Filesize

        5.7MB

      • memory/2540-22-0x00000000026C0000-0x0000000002700000-memory.dmp

        Filesize

        256KB

      • memory/2540-25-0x000000006F3F0000-0x000000006F99B000-memory.dmp

        Filesize

        5.7MB

      • memory/2540-32-0x00000000026C0000-0x0000000002700000-memory.dmp

        Filesize

        256KB

      • memory/2540-20-0x000000006F3F0000-0x000000006F99B000-memory.dmp

        Filesize

        5.7MB

      • memory/3028-47-0x0000000074850000-0x0000000074F3E000-memory.dmp

        Filesize

        6.9MB

      • memory/3028-1-0x0000000074850000-0x0000000074F3E000-memory.dmp

        Filesize

        6.9MB

      • memory/3028-5-0x0000000001F20000-0x0000000001F60000-memory.dmp

        Filesize

        256KB

      • memory/3028-7-0x0000000005830000-0x00000000058E8000-memory.dmp

        Filesize

        736KB

      • memory/3028-2-0x0000000001F20000-0x0000000001F60000-memory.dmp

        Filesize

        256KB

      • memory/3028-3-0x0000000000610000-0x0000000000620000-memory.dmp

        Filesize

        64KB

      • memory/3028-4-0x0000000074850000-0x0000000074F3E000-memory.dmp

        Filesize

        6.9MB

      • memory/3028-6-0x0000000000640000-0x000000000064C000-memory.dmp

        Filesize

        48KB

      • memory/3028-0-0x00000000002C0000-0x000000000039E000-memory.dmp

        Filesize

        888KB