General

  • Target

    JaffaCakes118_9d1f5a0493f3bd4c642b733d8dd79aa80c7666b3e5c856e761d9b894f29e7333

  • Size

    656KB

  • Sample

    241229-djxcyszrfz

  • MD5

    7b525c221fe25f96a5453e00dd1b3bd5

  • SHA1

    7400e78aaad923d572ee49b52e399cf661827afd

  • SHA256

    9d1f5a0493f3bd4c642b733d8dd79aa80c7666b3e5c856e761d9b894f29e7333

  • SHA512

    08cddc62113a9f692d1b0906db692aa8cf51610bd34745b1dd50b655148fceeaf20870d796a570822badb6ce89b2ec42268335802c4d78ba4ded83f7157d9a66

  • SSDEEP

    12288:xDXH995nEU3ZTesn0zY4vZlgfGkms7fmamB0+Rgi5h/6Vc/ux:R/Z3ZThnDOknmlekhiW/ux

Malware Config

Extracted

Family

remcos

Version

3.3.0 Pro

Botnet

RemoteHost

C2

salford1.ddns.net:2404

salford2.ddns.net:2404

salford3.ddns.net:2404

Attributes
  • audio_folder

    MicRecords

  • audio_path

    %AppData%

  • 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

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Remcos-56OLZQ

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    Remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

  • take_screenshot_title

    wikipedia;solitaire;

Targets

    • Target

      Document.exe

    • Size

      715KB

    • MD5

      198ec1f69b5a33f3cc86502a1eed6d3b

    • SHA1

      c8cfb04f36d1d819538f080c7e158987114c2602

    • SHA256

      3ff0c7aa1953da8ec564575b0200453a7a0da774072b12fb1672f38aeef2b770

    • SHA512

      f96160f0e33226737559d6d28d60c1e5fefbd87656f76d0755ddf501935da6ed649b6fffd766ebde84bf6676be055beeb52bd2753235438b00c2528f016add2c

    • SSDEEP

      12288:HcELQF69pTfJghb83Ox3gNQ4z2wrnS6vbP5y0ZdG8T39G/sYEw2Vy:H5fp0l3Pk2J4bo+dpw2

    • Remcos

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

    • Remcos family

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Checks computer location settings

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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks