General

  • Target

    02685371fedd6882df6bb6c55923098a25dd500b474d2c5162e9bb541dd78869N.exe

  • Size

    140KB

  • Sample

    250116-hscr5axqey

  • MD5

    6dc84ad7ef1ac736530211cc881fd2a0

  • SHA1

    5778b7fbeab9b188c22c6975e723ec5e67a69411

  • SHA256

    02685371fedd6882df6bb6c55923098a25dd500b474d2c5162e9bb541dd78869

  • SHA512

    c4a769014f46856e9846690bd86753ef1ab74bef02ac1513db5f229bab8b6809020bc0d9ca8abef1d90349b55d295667058ce4261b00bb015e4dadca9d9be6fa

  • SSDEEP

    3072:xPd4n/M+WLcilrpgGH/GwY87mVmIXhIHVST:xP6/M+WLckOBhVmIYq

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

      02685371fedd6882df6bb6c55923098a25dd500b474d2c5162e9bb541dd78869N.exe

    • Size

      140KB

    • MD5

      6dc84ad7ef1ac736530211cc881fd2a0

    • SHA1

      5778b7fbeab9b188c22c6975e723ec5e67a69411

    • SHA256

      02685371fedd6882df6bb6c55923098a25dd500b474d2c5162e9bb541dd78869

    • SHA512

      c4a769014f46856e9846690bd86753ef1ab74bef02ac1513db5f229bab8b6809020bc0d9ca8abef1d90349b55d295667058ce4261b00bb015e4dadca9d9be6fa

    • SSDEEP

      3072:xPd4n/M+WLcilrpgGH/GwY87mVmIXhIHVST:xP6/M+WLckOBhVmIYq

    • 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