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Overview

overview

10

Static

static

1

6338df20ac...00.exe

windows7-x64

10

6338df20ac...00.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    6338df20ac1b8f0278c3a3de52472357871c037f2178ee66e91d0aeb7ad11e00

  • Size

    898KB

  • Sample

    250323-za1vnsvsbs

  • MD5

    abc6c4342295ae87cd43a22752a82778

  • SHA1

    a9e1390063e50d74b8d8088c2d4b5ce7c5ad0d24

  • SHA256

    6338df20ac1b8f0278c3a3de52472357871c037f2178ee66e91d0aeb7ad11e00

  • SHA512

    46cef365440e3a6aa8deb4044f18d4434c825aa3abfbdf9955eb74ca303a06409aff864e93d572db28b730d48619508f4a886aa705d80e73bdeb9b367777cb2f

  • SSDEEP

    12288:hp+rgRNyA55IxJ+feDOa9rZj5XqkJD0QrOod7XxlW91RRzwAY3y:hpugRNJI1D39dlfGQrFUxwAey

Score
10/10
remcoshostdiscoverypersistenceratspywarestealer

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

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

Targets

    • Target

      6338df20ac1b8f0278c3a3de52472357871c037f2178ee66e91d0aeb7ad11e00

    • Size

      898KB

    • MD5

      abc6c4342295ae87cd43a22752a82778

    • SHA1

      a9e1390063e50d74b8d8088c2d4b5ce7c5ad0d24

    • SHA256

      6338df20ac1b8f0278c3a3de52472357871c037f2178ee66e91d0aeb7ad11e00

    • SHA512

      46cef365440e3a6aa8deb4044f18d4434c825aa3abfbdf9955eb74ca303a06409aff864e93d572db28b730d48619508f4a886aa705d80e73bdeb9b367777cb2f

    • SSDEEP

      12288:hp+rgRNyA55IxJ+feDOa9rZj5XqkJD0QrOod7XxlW91RRzwAY3y:hpugRNJI1D39dlfGQrFUxwAey

    Score
    10/10
    remcoshostdiscoverypersistenceratspywarestealer

    • Remcos

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

      ratremcos

    • Remcos family

      remcos

    • 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.

      spywarestealer

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks