General

  • Target

    3f86d2104c77af0637f17c14074db53f3e28bcc42f76448547c818c6ff2cd97dN

  • Size

    2.2MB

  • Sample

    240927-dsf3bssenq

  • MD5

    4147d7559e55883dae22ad42793de950

  • SHA1

    3ffe069ccd3a978be55977f11548d041feb99ee0

  • SHA256

    3f86d2104c77af0637f17c14074db53f3e28bcc42f76448547c818c6ff2cd97d

  • SHA512

    9c6f6c2bde5c3eb152ed0fc397d1bd9919c2f75dc146b06d8e7b57c9aad4a0e1a573d6fbd6c48d1a6a4f8c15a72032677c0fd5d13c357fceb9818fc98eaf881c

  • SSDEEP

    24576:rD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjYF4avnXJJJzM:rp7E+QrFUBgq2Snq

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

      3f86d2104c77af0637f17c14074db53f3e28bcc42f76448547c818c6ff2cd97dN

    • Size

      2.2MB

    • MD5

      4147d7559e55883dae22ad42793de950

    • SHA1

      3ffe069ccd3a978be55977f11548d041feb99ee0

    • SHA256

      3f86d2104c77af0637f17c14074db53f3e28bcc42f76448547c818c6ff2cd97d

    • SHA512

      9c6f6c2bde5c3eb152ed0fc397d1bd9919c2f75dc146b06d8e7b57c9aad4a0e1a573d6fbd6c48d1a6a4f8c15a72032677c0fd5d13c357fceb9818fc98eaf881c

    • SSDEEP

      24576:rD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjYF4avnXJJJzM:rp7E+QrFUBgq2Snq

    • Remcos

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

    • 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