General

  • Target

    FHK0987654000088.BAT.exe

  • Size

    359KB

  • Sample

    231130-sjfsjadc34

  • MD5

    f394a9576dfcde0302072c00f8228829

  • SHA1

    0443e79625859205fc6b332990e6e4d38d9b540c

  • SHA256

    e50cea800aec48d33066a55cbac3c887380c2e6688df2b4fc0647c7e3e62cc02

  • SHA512

    0eaaa48edbc1e92ee1ee7d24bdee287bf7c64bad9cafeefd97f884410040682b523742e991badff8f17024d88210074f2ba791871a242457f2c22f54e498d9ac

  • SSDEEP

    6144:QBlL/3u6CdzVSYAw/lsTM4kTV/O62UD8XpL8Io8hQR/y9PBGP0WnIxBGsH9Dwe:id5CvgwNe6tO6xupIX84y9ZwIxbHpwe

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

107.175.229.139:8087

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-IZFV1M

  • 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

      FHK0987654000088.BAT.exe

    • Size

      359KB

    • MD5

      f394a9576dfcde0302072c00f8228829

    • SHA1

      0443e79625859205fc6b332990e6e4d38d9b540c

    • SHA256

      e50cea800aec48d33066a55cbac3c887380c2e6688df2b4fc0647c7e3e62cc02

    • SHA512

      0eaaa48edbc1e92ee1ee7d24bdee287bf7c64bad9cafeefd97f884410040682b523742e991badff8f17024d88210074f2ba791871a242457f2c22f54e498d9ac

    • SSDEEP

      6144:QBlL/3u6CdzVSYAw/lsTM4kTV/O62UD8XpL8Io8hQR/y9PBGP0WnIxBGsH9Dwe:id5CvgwNe6tO6xupIX84y9ZwIxbHpwe

    • Remcos

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

    • Executes dropped EXE

    • Loads dropped DLL

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks