General

  • Target

    58a62767cb1609473806371b85474e74fa4ca0d6e0d04367e7bb9152019d692a

  • Size

    1.9MB

  • Sample

    250330-zlkylaypz2

  • MD5

    51a78b366807e0851132489626ffc3cf

  • SHA1

    8a2973c73d30ae12e2d5a1b4070b51d156631ac7

  • SHA256

    58a62767cb1609473806371b85474e74fa4ca0d6e0d04367e7bb9152019d692a

  • SHA512

    0ba0ce74b545a4d6342fe392b302e6f1a54d06af6c055df07ccc50e7bdb180d0e7e1e5d91f04dbcf57e32c9d704e4c5032454fd8f7e115cbd53cf78fd45d093b

  • SSDEEP

    24576:WD39dlfGQrFUspugRNJI2DJnUw9W/j+BeKJWqwH6j9:WF+QrFUBgq25eKu6j9

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Host

C2

213.183.58.19:4000

Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    remcos.exe

  • copy_folder

    remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    true

  • install_flag

    false

  • install_path

    %AppData%

  • keylog_crypt

    true

  • keylog_file

    read.dat

  • keylog_flag

    false

  • keylog_folder

    CastC

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    remcos_sccafsoidz

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screens

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • startup_value

    remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      58a62767cb1609473806371b85474e74fa4ca0d6e0d04367e7bb9152019d692a

    • Size

      1.9MB

    • MD5

      51a78b366807e0851132489626ffc3cf

    • SHA1

      8a2973c73d30ae12e2d5a1b4070b51d156631ac7

    • SHA256

      58a62767cb1609473806371b85474e74fa4ca0d6e0d04367e7bb9152019d692a

    • SHA512

      0ba0ce74b545a4d6342fe392b302e6f1a54d06af6c055df07ccc50e7bdb180d0e7e1e5d91f04dbcf57e32c9d704e4c5032454fd8f7e115cbd53cf78fd45d093b

    • SSDEEP

      24576:WD39dlfGQrFUspugRNJI2DJnUw9W/j+BeKJWqwH6j9:WF+QrFUBgq25eKu6j9

    • 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

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks