Overview

overview

10

Static

static

3368d7af54...9b.exe

windows7_x64

10

3368d7af54...9b.exe

windows10_x64

10

Sharing

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General

  • Target
    3368d7af54523d7dc1901ab5d1b40a9b
  • Size 650KB
  • Sample211115-k7xf7aefgj
  • SHA256 ffbc5e54216b20404fd721b3ceab3b8b078dfbba0f42376223c37e34ef4fbf23
  • MD5 SHA1 SHA512
Score
10/10
remcosoct endmicrosoftevasionpersistencephishingrattrojan

Malware Config

Extracted

Family

  • remcos

Version

  • 1.7 Pro

Botnet

  • Oct End

C2

  • yjune2021.duckdns.org:3030

Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    Windows NT session.exe

  • copy_folder

    Windows Start-Ups Manager

  • 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 NT session Jack Players

  • take_screenshot_option

    true

  • take_screenshot_time

    5

  • take_screenshot_title

    Username;password;proforma;invoice;notepad

Targets

    • Target
      3368d7af54523d7dc1901ab5d1b40a9b
    • Size 650KB
    • SHA256 ffbc5e54216b20404fd721b3ceab3b8b078dfbba0f42376223c37e34ef4fbf23
    • MD5 SHA1 SHA512
    Score
    10/10
    remcosoct endevasionpersistencerattrojanmicrosoftphishing

    • Remcos

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

      ratremcos

    • UAC bypass

      evasiontrojan

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Detected potential entity reuse from brand microsoft.

      phishingmicrosoft

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v6

Tasks