Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-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 2 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 20 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:2560
    • 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:3272
      • 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:4980
    • \??\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:2284
      • 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:1936
        • 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:5088
      • C:\Windows\SysWOW64\svchost.exe
        svchost.exe
        3⤵
          PID:2204

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\remcos\logs.dat

      Filesize

      144B

      MD5

      be8b5c3e8ad7421d6c648863d777a618

      SHA1

      4def03839dd0eb8ce6fe702af89049e199bcb137

      SHA256

      673db162f7da9aa5f25cb899e2f377a9d4c293b0a8959a4442e650be94b1c25e

      SHA512

      2ea1b8cde5a44bb1dae49f103b39a1b13e23c03344a00935744374241f74d668662d7890ed9dfa4c3ee8fc2546c7ee50ce04fe9303025f1727f67e1451ba1290

    • memory/2204-13-0x00000000008D0000-0x0000000000952000-memory.dmp

      Filesize

      520KB

    • memory/2204-11-0x00000000008D0000-0x0000000000952000-memory.dmp

      Filesize

      520KB

    • memory/2204-14-0x00000000008D0000-0x0000000000952000-memory.dmp

      Filesize

      520KB

    • memory/2204-12-0x00000000008D0000-0x0000000000952000-memory.dmp

      Filesize

      520KB

    • memory/2284-21-0x0000000000F30000-0x0000000000FB2000-memory.dmp

      Filesize

      520KB

    • memory/2284-26-0x0000000000F30000-0x0000000000FB2000-memory.dmp

      Filesize

      520KB

    • memory/2284-2-0x0000000000F30000-0x0000000000FB2000-memory.dmp

      Filesize

      520KB

    • memory/2284-0-0x0000000000F30000-0x0000000000FB2000-memory.dmp

      Filesize

      520KB

    • memory/2284-10-0x0000000000F30000-0x0000000000FB2000-memory.dmp

      Filesize

      520KB

    • memory/2284-19-0x0000000000F30000-0x0000000000FB2000-memory.dmp

      Filesize

      520KB

    • memory/2284-20-0x0000000000F30000-0x0000000000FB2000-memory.dmp

      Filesize

      520KB

    • memory/2284-1-0x0000000000F30000-0x0000000000FB2000-memory.dmp

      Filesize

      520KB

    • memory/2284-3-0x0000000000F30000-0x0000000000FB2000-memory.dmp

      Filesize

      520KB

    • memory/2284-9-0x0000000000F30000-0x0000000000FB2000-memory.dmp

      Filesize

      520KB

    • memory/2284-27-0x0000000000F30000-0x0000000000FB2000-memory.dmp

      Filesize

      520KB

    • memory/2284-32-0x0000000000F30000-0x0000000000FB2000-memory.dmp

      Filesize

      520KB

    • memory/2284-34-0x0000000000F30000-0x0000000000FB2000-memory.dmp

      Filesize

      520KB

    • memory/2284-39-0x0000000000F30000-0x0000000000FB2000-memory.dmp

      Filesize

      520KB

    • memory/2284-40-0x0000000000F30000-0x0000000000FB2000-memory.dmp

      Filesize

      520KB

    • memory/2284-45-0x0000000000F30000-0x0000000000FB2000-memory.dmp

      Filesize

      520KB

    • memory/2284-46-0x0000000000F30000-0x0000000000FB2000-memory.dmp

      Filesize

      520KB

    • memory/2284-52-0x0000000000F30000-0x0000000000FB2000-memory.dmp

      Filesize

      520KB

    • memory/2284-53-0x0000000000F30000-0x0000000000FB2000-memory.dmp

      Filesize

      520KB