General

  • Target

    0e695ab472c053c536729db98e2d0830N.exe

  • Size

    1.8MB

  • Sample

    240721-zv8e9avbng

  • MD5

    0e695ab472c053c536729db98e2d0830

  • SHA1

    9dd4ce8698d49e6841787b000aa6ea31e115eb75

  • SHA256

    ad4f75bf5c5c17daac7ca207b38dea31a9c56d40692a5a0e5537e6f1bd61c719

  • SHA512

    73cd3231054a5bb2828f94720d00d3ee2c8a17352041941459f32fa991214d8bc2881f98309ee3997cb92da2a441aed78eaa7a85a803ed2defa66fcd33c689c0

  • SSDEEP

    24576:lD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPj8/j73Ab:lp7E+QrFUBgq2Z

Malware Config

Extracted

Family

remcos

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

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

      0e695ab472c053c536729db98e2d0830N.exe

    • Size

      1.8MB

    • MD5

      0e695ab472c053c536729db98e2d0830

    • SHA1

      9dd4ce8698d49e6841787b000aa6ea31e115eb75

    • SHA256

      ad4f75bf5c5c17daac7ca207b38dea31a9c56d40692a5a0e5537e6f1bd61c719

    • SHA512

      73cd3231054a5bb2828f94720d00d3ee2c8a17352041941459f32fa991214d8bc2881f98309ee3997cb92da2a441aed78eaa7a85a803ed2defa66fcd33c689c0

    • SSDEEP

      24576:lD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPj8/j73Ab:lp7E+QrFUBgq2Z

    • 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