General

  • Target

    a3720759f7a642fd6a6693df27c30296_JaffaCakes118

  • Size

    131KB

  • Sample

    241126-w3sszszldk

  • MD5

    a3720759f7a642fd6a6693df27c30296

  • SHA1

    02f94dc2f13852e980f9623814e187722bc908ef

  • SHA256

    e76a41afa56e1f181a5f870938a96080a15600c63735335b58df3cd021c163d4

  • SHA512

    766f2def12916fc1a8231f9f67e6efbf035c5dd7342c2f87d691a9f2ff9bacb1013ebd798d2f3054ba014070aec9897b931faed4103207297dbafee0aa28d0ca

  • SSDEEP

    1536:ITHiPBX4nDzMyRXGHrc9YRHqbTypgpmb5Q+ZReSdhk/J+YLgD3mrxb53cSuYQjKp:xPd4n/M+WLcilrpgGH/GwY87mVmIXZ

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Host

C2

systemcontrol.ddns.net:45000

systemcontrol2.ddns.net:45000

Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    OfficeUpgrade.exe

  • copy_folder

    OfficeUpgrade

  • delete_file

    false

  • hide_file

    true

  • hide_keylog_file

    true

  • install_flag

    false

  • install_path

    %AppData%

  • keylog_crypt

    true

  • keylog_file

    Upgrader.dat

  • keylog_flag

    false

  • keylog_folder

    Upgrader

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    req_khauflaoyr

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screens

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • startup_value

    OfficeUpgrade

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      a3720759f7a642fd6a6693df27c30296_JaffaCakes118

    • Size

      131KB

    • MD5

      a3720759f7a642fd6a6693df27c30296

    • SHA1

      02f94dc2f13852e980f9623814e187722bc908ef

    • SHA256

      e76a41afa56e1f181a5f870938a96080a15600c63735335b58df3cd021c163d4

    • SHA512

      766f2def12916fc1a8231f9f67e6efbf035c5dd7342c2f87d691a9f2ff9bacb1013ebd798d2f3054ba014070aec9897b931faed4103207297dbafee0aa28d0ca

    • SSDEEP

      1536:ITHiPBX4nDzMyRXGHrc9YRHqbTypgpmb5Q+ZReSdhk/J+YLgD3mrxb53cSuYQjKp:xPd4n/M+WLcilrpgGH/GwY87mVmIXZ

    • Remcos

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

    • Remcos family

    • 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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks