Overview

overview

10

Static

static

10

1668-89-0x...ry.exe

windows7-x64

10

1668-89-0x...ry.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    1668-89-0x0000000004FA0000-0x0000000004FE0000-memory.dmp
  • Size 256KB
  • Sample240302-j6versbg2t
  • SHA256 c695d187c552f8dcd820c4d6a419b0c050a664883fd4fcfbd5a5b4df914d61e0
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
remcoshappy new monthevasionpersistencerattrojan

Malware Config

Extracted

Family

  • remcos

Botnet

  • Happy New Month

C2

  • arttronova124.duckdns.org:3030

Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    Windows Audio Service.exe

  • copy_folder

    Microsoft Media Corp

  • delete_file

    false

  • hide_file

    true

  • hide_keylog_file

    true

  • install_flag

    true

  • install_path

    %WinDir%

  • keylog_crypt

    true

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    Windows Display

  • keylog_path

    %WinDir%

  • mouse_option

    false

  • mutex

    Windows Audio

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screens

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • startup_value

    Microsoft Sound EndPoints

  • take_screenshot_option

    true

  • take_screenshot_time

    5

  • take_screenshot_title

    Username;password;proforma;invoice;notepad

Extracted

Family

  • remcos

Version

  • 1.7 Pro

Botnet

  • Happy New Month

C2

  • arttronova124.duckdns.org:3030

Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    Windows Audio Service.exe

  • copy_folder

    Microsoft Media Corp

  • delete_file

    false

  • hide_file

    true

  • hide_keylog_file

    true

  • install_flag

    true

  • install_path

    %WinDir%

  • keylog_crypt

    true

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    Windows Display

  • keylog_path

    %WinDir%

  • mouse_option

    false

  • mutex

    Windows Audio

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screens

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • startup_value

    Microsoft Sound EndPoints

  • take_screenshot_option

    true

  • take_screenshot_time

    5

  • take_screenshot_title

    Username;password;proforma;invoice;notepad

Targets

    • Target
      1668-89-0x0000000004FA0000-0x0000000004FE0000-memory.dmp
    • Size 256KB
    • SHA256 c695d187c552f8dcd820c4d6a419b0c050a664883fd4fcfbd5a5b4df914d61e0
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    remcoshappy new monthevasionpersistencerattrojan

    • Remcos

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

      ratremcos

    • UAC bypass

      evasiontrojan

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks