General

  • Target

    4cbf921ca59d8725280de0d34864dc44eb98fadde5ea010683a8f8820eb3b803

  • Size

    746KB

  • Sample

    221124-z6rlwaae58

  • MD5

    9140ccdcddf8331c3204be8d3eadeb33

  • SHA1

    004fe0732d9065590386bbcc13b834d6bb39d07f

  • SHA256

    4cbf921ca59d8725280de0d34864dc44eb98fadde5ea010683a8f8820eb3b803

  • SHA512

    3a6e7c2e36bc012029d31e3ec8305a10db64f3ebef2a6f38847d9f61776b8029cd03a64951263f7ec4d3cd7782b08c0dd440dd73554dc0e675f4f0d1ecbbc9a7

  • SSDEEP

    12288:RqhmZJbxpDFJxbxmnq2Co4a5mJ2pKBaOtg4e/uKy8Kt58bLjKj3/4vjSC:RQixh3OFK0+e/u8KvynKj3/zC

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Nov 24th

C2

gcrozona.duckdns.org:6062

Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    Microsoft Intel Audios.exe

  • copy_folder

    Audio Microsoft File

  • delete_file

    false

  • hide_file

    true

  • hide_keylog_file

    true

  • install_flag

    true

  • install_path

    %WinDir%

  • keylog_crypt

    true

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    Windows Display

  • keylog_path

    %WinDir%

  • mouse_option

    false

  • mutex

    Windows Audio

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screens

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • startup_value

    Window Security Check

  • take_screenshot_option

    true

  • take_screenshot_time

    5

  • take_screenshot_title

    Username;password;proforma;invoice;notepad

Targets

    • Target

      4cbf921ca59d8725280de0d34864dc44eb98fadde5ea010683a8f8820eb3b803

    • Size

      746KB

    • MD5

      9140ccdcddf8331c3204be8d3eadeb33

    • SHA1

      004fe0732d9065590386bbcc13b834d6bb39d07f

    • SHA256

      4cbf921ca59d8725280de0d34864dc44eb98fadde5ea010683a8f8820eb3b803

    • SHA512

      3a6e7c2e36bc012029d31e3ec8305a10db64f3ebef2a6f38847d9f61776b8029cd03a64951263f7ec4d3cd7782b08c0dd440dd73554dc0e675f4f0d1ecbbc9a7

    • SSDEEP

      12288:RqhmZJbxpDFJxbxmnq2Co4a5mJ2pKBaOtg4e/uKy8Kt58bLjKj3/4vjSC:RQixh3OFK0+e/u8KvynKj3/zC

    • Remcos

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

    • UAC bypass

    • Executes dropped EXE

    • Checks computer location settings

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

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks