Analysis

  • max time kernel
    150s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 18:49

General

  • Target

    fff14d27cfcfd3a46729a41bd6dcbb09e667f894e2c85b4e7eb5098faccfa6ab.exe

  • Size

    591KB

  • MD5

    ab6ebb46942e94eb3661c4c86b099e8b

  • SHA1

    f54817be0255ff370d2f9272b6593d9aacf1b6b8

  • SHA256

    fff14d27cfcfd3a46729a41bd6dcbb09e667f894e2c85b4e7eb5098faccfa6ab

  • SHA512

    0c548efa026dd3d49b1cbe894ce1f2e75df4f965558e89677ef7199f67d019d4a1bb4ac7624cd1b307515018196b380205bd7aff7e57a2aeffa4418dd101c731

  • SSDEEP

    12288:qHvJn9wxkMn3Y7LnrjQx5PZ4BL2WwcULxjW3Vst0KCi/pB7o:qhn6ksY7jrsx5+MxjWs0KNB

Score
10/10

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

51.75.209.245:2404

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-CMFPLR

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    Remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

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

  • Drops startup file 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fff14d27cfcfd3a46729a41bd6dcbb09e667f894e2c85b4e7eb5098faccfa6ab.exe
    "C:\Users\Admin\AppData\Local\Temp\fff14d27cfcfd3a46729a41bd6dcbb09e667f894e2c85b4e7eb5098faccfa6ab.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1476
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
      "Powershell" Copy-Item 'C:\Users\Admin\AppData\Local\Temp\fff14d27cfcfd3a46729a41bd6dcbb09e667f894e2c85b4e7eb5098faccfa6ab.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Systjnjem.exe'
      2⤵
      • Drops startup file
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4940
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
        PID:4876
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
        2⤵
          PID:4904
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
          2⤵
          • Suspicious use of SetWindowsHookEx
          PID:4804

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/1476-133-0x00000000057F0000-0x0000000005D94000-memory.dmp

        Filesize

        5.6MB

      • memory/1476-134-0x0000000005240000-0x00000000052DC000-memory.dmp

        Filesize

        624KB

      • memory/1476-132-0x0000000000550000-0x00000000005EA000-memory.dmp

        Filesize

        616KB

      • memory/4804-140-0x0000000000000000-mapping.dmp

      • memory/4804-149-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/4804-147-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/4804-146-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/4804-141-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/4804-142-0x0000000000400000-0x000000000047F000-memory.dmp

        Filesize

        508KB

      • memory/4876-137-0x0000000000000000-mapping.dmp

      • memory/4904-138-0x0000000000000000-mapping.dmp

      • memory/4940-143-0x0000000005B70000-0x0000000005B92000-memory.dmp

        Filesize

        136KB

      • memory/4940-144-0x0000000005C10000-0x0000000005C76000-memory.dmp

        Filesize

        408KB

      • memory/4940-145-0x0000000005C80000-0x0000000005CE6000-memory.dmp

        Filesize

        408KB

      • memory/4940-139-0x0000000005510000-0x0000000005B38000-memory.dmp

        Filesize

        6.2MB

      • memory/4940-136-0x0000000004E40000-0x0000000004E76000-memory.dmp

        Filesize

        216KB

      • memory/4940-148-0x0000000006400000-0x000000000641E000-memory.dmp

        Filesize

        120KB

      • memory/4940-135-0x0000000000000000-mapping.dmp

      • memory/4940-150-0x00000000073B0000-0x0000000007446000-memory.dmp

        Filesize

        600KB

      • memory/4940-151-0x00000000068C0000-0x00000000068DA000-memory.dmp

        Filesize

        104KB

      • memory/4940-152-0x0000000006910000-0x0000000006932000-memory.dmp

        Filesize

        136KB