Analysis

  • max time kernel
    148s
  • max time network
    146s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    12-08-2024 05:59

General

  • Target

    de06ee1f57bc4475cf0a9a7352b0ca51b31bee6aee54429982a6ab7bdf8795e9.exe

  • Size

    483KB

  • MD5

    a71c2ec29d24f8abfc5686b136f71f22

  • SHA1

    01929dffa443b3d17d2c9f32e2efa31759aec136

  • SHA256

    de06ee1f57bc4475cf0a9a7352b0ca51b31bee6aee54429982a6ab7bdf8795e9

  • SHA512

    10de0945c8640a495b8c2617f55d2de75cd05b87f99a6e201bb2d12a9f522dc0536e161d64c5be5ea13672bc4492d3effa9f2b25540834e09e001d826b4dd565

  • SSDEEP

    6144:wTz+c6KHYBhDc1RGJdv//NkUn+N5Bkf/0TELRvIZPjbsAOZZBAXccriT4:wTlrYw1RUh3NFn+N5WfIQIjbs/ZBFT4

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

192.168.1.252:2404

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-39LPSU

  • 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.

  • UAC bypass 3 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry key 1 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\de06ee1f57bc4475cf0a9a7352b0ca51b31bee6aee54429982a6ab7bdf8795e9.exe
    "C:\Users\Admin\AppData\Local\Temp\de06ee1f57bc4475cf0a9a7352b0ca51b31bee6aee54429982a6ab7bdf8795e9.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:2208
    • 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
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2812
      • 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
        3⤵
        • UAC bypass
        • System Location Discovery: System Language Discovery
        • Modifies registry key
        PID:2900
    • \??\c:\program files (x86)\internet explorer\iexplore.exe
      "c:\program files (x86)\internet explorer\iexplore.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3048
      • 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⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1992
        • 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⤵
          • UAC bypass
          • System Location Discovery: System Language Discovery
          • Modifies registry key
          PID:2596
      • C:\Windows\SysWOW64\svchost.exe
        svchost.exe
        3⤵
          PID:2716

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\remcos\logs.dat

      Filesize

      144B

      MD5

      217fba757f2fa02a22b31b6518d3d236

      SHA1

      202708714296dad278c3647bb539b77930dd095a

      SHA256

      15dd6d4dcbd3c6455765efaa262ddcb2da6f1f998f67b512c1e24dcc70c7b88f

      SHA512

      3189f059b647407fb59dff3da01bf5fec50905c4b99d04e6e2d7efbf16e115c78ae2d458cc016e3cc8e592de82906eb19a890b3120eba92da628fe42e0045538

    • memory/2716-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2716-18-0x00000000000D0000-0x0000000000152000-memory.dmp

      Filesize

      520KB

    • memory/3048-25-0x00000000000D0000-0x0000000000152000-memory.dmp

      Filesize

      520KB

    • memory/3048-30-0x00000000000D0000-0x0000000000152000-memory.dmp

      Filesize

      520KB

    • memory/3048-4-0x00000000000D0000-0x0000000000152000-memory.dmp

      Filesize

      520KB

    • memory/3048-5-0x00000000000D0000-0x0000000000152000-memory.dmp

      Filesize

      520KB

    • memory/3048-8-0x00000000000D0000-0x0000000000152000-memory.dmp

      Filesize

      520KB

    • memory/3048-23-0x00000000000D0000-0x0000000000152000-memory.dmp

      Filesize

      520KB

    • memory/3048-24-0x00000000000D0000-0x0000000000152000-memory.dmp

      Filesize

      520KB

    • memory/3048-2-0x00000000000D0000-0x0000000000152000-memory.dmp

      Filesize

      520KB

    • memory/3048-0-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/3048-12-0x00000000000D0000-0x0000000000152000-memory.dmp

      Filesize

      520KB

    • memory/3048-31-0x00000000000D0000-0x0000000000152000-memory.dmp

      Filesize

      520KB

    • memory/3048-37-0x00000000000D0000-0x0000000000152000-memory.dmp

      Filesize

      520KB

    • memory/3048-38-0x00000000000D0000-0x0000000000152000-memory.dmp

      Filesize

      520KB

    • memory/3048-43-0x00000000000D0000-0x0000000000152000-memory.dmp

      Filesize

      520KB

    • memory/3048-44-0x00000000000D0000-0x0000000000152000-memory.dmp

      Filesize

      520KB

    • memory/3048-49-0x00000000000D0000-0x0000000000152000-memory.dmp

      Filesize

      520KB

    • memory/3048-51-0x00000000000D0000-0x0000000000152000-memory.dmp

      Filesize

      520KB

    • memory/3048-56-0x00000000000D0000-0x0000000000152000-memory.dmp

      Filesize

      520KB

    • memory/3048-57-0x00000000000D0000-0x0000000000152000-memory.dmp

      Filesize

      520KB