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General

  • Target

    5a775d8c281f0a20b40ae98a67c456c1114b5440b19efb621573f3ac2f0f6379

  • Size

    1.8MB

  • Sample

    250324-yqcx4syky8

  • MD5

    0431be431ade102a44e8e3582c71f921

  • SHA1

    98d00d419396a3ae5c844890b4ded9431ec9357a

  • SHA256

    5a775d8c281f0a20b40ae98a67c456c1114b5440b19efb621573f3ac2f0f6379

  • SHA512

    feb2837771607dfca36f94d87988eed2212434fb7a21f54835483132aa81b82927d9b32589d42437521cb3e1fc566fce46067f4ee0f6753a65934afe4471d4a7

  • SSDEEP

    24576:6D39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjoE:6p7E+QrFUBgq2F

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

      5a775d8c281f0a20b40ae98a67c456c1114b5440b19efb621573f3ac2f0f6379

    • Size

      1.8MB

    • MD5

      0431be431ade102a44e8e3582c71f921

    • SHA1

      98d00d419396a3ae5c844890b4ded9431ec9357a

    • SHA256

      5a775d8c281f0a20b40ae98a67c456c1114b5440b19efb621573f3ac2f0f6379

    • SHA512

      feb2837771607dfca36f94d87988eed2212434fb7a21f54835483132aa81b82927d9b32589d42437521cb3e1fc566fce46067f4ee0f6753a65934afe4471d4a7

    • SSDEEP

      24576:6D39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjoE:6p7E+QrFUBgq2F

    • 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