Analysis

  • max time kernel
    148s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-08-2024 13:04

General

  • Target

    Solicitação de Cotação.exe

  • Size

    2.0MB

  • MD5

    b080ea268e4427342f2927443077147f

  • SHA1

    ff70334bbc04859c3022c4ea5932da51ddef6d7d

  • SHA256

    c1c3c20f09b3626d71bee368cef603ac62fa5df11c8b2faefc43278e3c94b440

  • SHA512

    00d55fa44efbd0e67cf8f239b771a5e320a5feb07d0d6418aabd1bffafd820e86fde832bd99a11fca23ffca1b8225d27b42a43c67c25b2b195edece3132880f6

  • SSDEEP

    12288:5PLMb1BQGByoSuG3+hZPYak0VSh+EC9MQy3+IpqYoseecigbuoOikMOAQWcz6T:6AGYjrQ8+E/h3dpqYJEk9AQWcQ

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

eadzagba1.duckdns.org:4877

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-X3UMUO

  • 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
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

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

  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Solicitação de Cotação.exe
    "C:\Users\Admin\AppData\Local\Temp\Solicitação de Cotação.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2572
    • C:\Program Files (x86)\Internet Explorer\iexplore.exe
      "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3512
    • C:\Program Files (x86)\Internet Explorer\iexplore.exe
      "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
      2⤵
        PID:3436

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2572-0-0x00007FF8ADDF3000-0x00007FF8ADDF5000-memory.dmp

      Filesize

      8KB

    • memory/2572-1-0x000001BA29A10000-0x000001BA29A1A000-memory.dmp

      Filesize

      40KB

    • memory/2572-2-0x00007FF8ADDF0000-0x00007FF8AE8B1000-memory.dmp

      Filesize

      10.8MB

    • memory/2572-3-0x000001BA44080000-0x000001BA44152000-memory.dmp

      Filesize

      840KB

    • memory/2572-5-0x00007FF8ADDF0000-0x00007FF8AE8B1000-memory.dmp

      Filesize

      10.8MB

    • memory/3512-4-0x0000000000400000-0x0000000000482000-memory.dmp

      Filesize

      520KB