General

  • Target

    3103ebb8576654b0f3ef393bb5c860e93fb69ab8400e01295b25b0f244b34c61

  • Size

    904KB

  • Sample

    240306-qezczabe6x

  • MD5

    f41c63ec04a686dcd7acb8afe12a0a0e

  • SHA1

    6e33557b27ab27b72cd7029d3db1f70f6cee2567

  • SHA256

    3103ebb8576654b0f3ef393bb5c860e93fb69ab8400e01295b25b0f244b34c61

  • SHA512

    0eb2dabc2d4a0e04fedc42b35e83dff6a6d83d9ca5f265b12583be9e6690efa6f84cae577516475c98f523709119471a1172ebd2f8deb5840e6bdd79904fbf74

  • SSDEEP

    24576:fsZM8GtqcVf77qoVnl9mhFW1eNV3O0yd0Zg7i:HnVf7WoVnl9oWV0ykn

Malware Config

Extracted

Family

remcos

Botnet

Vps4

C2

192.161.184.21:24054

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

    Rlog.dat

  • keylog_flag

    false

  • keylog_folder

    DrWin

  • mouse_option

    false

  • mutex

    Rmc2024-Q4AYK1

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      3103ebb8576654b0f3ef393bb5c860e93fb69ab8400e01295b25b0f244b34c61

    • Size

      904KB

    • MD5

      f41c63ec04a686dcd7acb8afe12a0a0e

    • SHA1

      6e33557b27ab27b72cd7029d3db1f70f6cee2567

    • SHA256

      3103ebb8576654b0f3ef393bb5c860e93fb69ab8400e01295b25b0f244b34c61

    • SHA512

      0eb2dabc2d4a0e04fedc42b35e83dff6a6d83d9ca5f265b12583be9e6690efa6f84cae577516475c98f523709119471a1172ebd2f8deb5840e6bdd79904fbf74

    • SSDEEP

      24576:fsZM8GtqcVf77qoVnl9mhFW1eNV3O0yd0Zg7i:HnVf7WoVnl9oWV0ykn

    • Remcos

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

    • Looks for VirtualBox Guest Additions in registry

    • Looks for VMWare Tools registry key

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks