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General

  • Target

    cc25c37834e04127c13349d5a8639e15163ee72e9a156efb06f06baccb524124

  • Size

    1.9MB

  • Sample

    250323-zd66vsvtdt

  • MD5

    a1fa1f1fb1412e7de0e3bef87343290d

  • SHA1

    7bc05b344cb418027ad279c036a9182e4e5d7350

  • SHA256

    cc25c37834e04127c13349d5a8639e15163ee72e9a156efb06f06baccb524124

  • SHA512

    1f1a8cc9763639482fefc1ec6b61d939426e699dbe7a2b621c2eebc880b420c10b25e0c27378096146ae2cc1dbe0fdb9e7a9ed0b6d3f2929d05c24147a81124a

  • SSDEEP

    24576:MD39dlfGQrFUspugRNJI2DJnUw9W/j+BeKJWqwH6y1:MF+QrFUBgq25eKu6y1

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

      cc25c37834e04127c13349d5a8639e15163ee72e9a156efb06f06baccb524124

    • Size

      1.9MB

    • MD5

      a1fa1f1fb1412e7de0e3bef87343290d

    • SHA1

      7bc05b344cb418027ad279c036a9182e4e5d7350

    • SHA256

      cc25c37834e04127c13349d5a8639e15163ee72e9a156efb06f06baccb524124

    • SHA512

      1f1a8cc9763639482fefc1ec6b61d939426e699dbe7a2b621c2eebc880b420c10b25e0c27378096146ae2cc1dbe0fdb9e7a9ed0b6d3f2929d05c24147a81124a

    • SSDEEP

      24576:MD39dlfGQrFUspugRNJI2DJnUw9W/j+BeKJWqwH6y1:MF+QrFUBgq25eKu6y1

    • 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

    • 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