General

  • Target

    4b87597d2dc22a3047eab8addc09ecf0_JaffaCakes118

  • Size

    36KB

  • Sample

    240516-rqr9gagg9x

  • MD5

    4b87597d2dc22a3047eab8addc09ecf0

  • SHA1

    6fafadeca6663b3dc30aa290e3e592d05c1906bc

  • SHA256

    a1006ea95956818636f6055742bf639336ad2474f5a86969ed898d28b22689fb

  • SHA512

    b5a18cd744b2823c5c0a460256052b3490f730d38c724b7471ad5122e64a7a1ab94a72e711a0c2bde7e66ef2a05699fde634138e80535c8a8080d84cecdb335f

  • SSDEEP

    384:PE2q5PHyMV9jmhOludWkhI73XcbbZQ2cRbQom8kR3bh9zRvgzTc9fpGnefzwGDsC:A5PHyCjmhFdWfLubuZ1kvIaEekM2Wr1

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Hot

C2

xfxf.ddns.net:2404

xfxf.ddns.net:2525

Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    svhost2.exe

  • copy_folder

    svhosting

  • delete_file

    false

  • hide_file

    true

  • hide_keylog_file

    false

  • install_flag

    true

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    true

  • mutex

    remcos_xrieusffqh

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screens

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • startup_value

    svhost2

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      4b87597d2dc22a3047eab8addc09ecf0_JaffaCakes118

    • Size

      36KB

    • MD5

      4b87597d2dc22a3047eab8addc09ecf0

    • SHA1

      6fafadeca6663b3dc30aa290e3e592d05c1906bc

    • SHA256

      a1006ea95956818636f6055742bf639336ad2474f5a86969ed898d28b22689fb

    • SHA512

      b5a18cd744b2823c5c0a460256052b3490f730d38c724b7471ad5122e64a7a1ab94a72e711a0c2bde7e66ef2a05699fde634138e80535c8a8080d84cecdb335f

    • SSDEEP

      384:PE2q5PHyMV9jmhOludWkhI73XcbbZQ2cRbQom8kR3bh9zRvgzTc9fpGnefzwGDsC:A5PHyCjmhFdWfLubuZ1kvIaEekM2Wr1

    • Modifies WinLogon for persistence

    • Remcos

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

    • UAC bypass

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Adds policy Run key to start application

    • Checks computer location settings

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

    • 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

    • Modifies WinLogon

MITRE ATT&CK Enterprise v15

Tasks