General

  • Target

    e4329b591798ee38b653024b171393393381df6881aa561bf70f0f2255c533f6

  • Size

    754KB

  • Sample

    221130-bnhn9ahg3w

  • MD5

    d963ac1435b96872ea5380743976002a

  • SHA1

    5f043557947581d52642d2622ea88e3d133861bf

  • SHA256

    e4329b591798ee38b653024b171393393381df6881aa561bf70f0f2255c533f6

  • SHA512

    24ca9faa7c4af577ee1cf5e5966968eab5a1c186eefdcb351efd59e6310103b5180ab931446c4b37f9a3ed834bd39a876585d2b8755cf49356afdb2d25ed7648

  • SSDEEP

    12288:AOXBqPwNK7sb7/sn1gSp4JZQwcJ4ogRM6qLQxs8iKFhpezUQtD9jq:Te7w7En1gSp4TCYW4i8l7ezUA9j

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Nov End

C2

terzona2022.duckdns.org:3030

Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    Windows input text.exe

  • copy_folder

    Microsoft Text

  • 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 Text

  • take_screenshot_option

    true

  • take_screenshot_time

    5

  • take_screenshot_title

    Username;password;proforma;invoice;notepad

Targets

    • Target

      e4329b591798ee38b653024b171393393381df6881aa561bf70f0f2255c533f6

    • Size

      754KB

    • MD5

      d963ac1435b96872ea5380743976002a

    • SHA1

      5f043557947581d52642d2622ea88e3d133861bf

    • SHA256

      e4329b591798ee38b653024b171393393381df6881aa561bf70f0f2255c533f6

    • SHA512

      24ca9faa7c4af577ee1cf5e5966968eab5a1c186eefdcb351efd59e6310103b5180ab931446c4b37f9a3ed834bd39a876585d2b8755cf49356afdb2d25ed7648

    • SSDEEP

      12288:AOXBqPwNK7sb7/sn1gSp4JZQwcJ4ogRM6qLQxs8iKFhpezUQtD9jq:Te7w7En1gSp4TCYW4i8l7ezUA9j

    • Remcos

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

    • UAC bypass

    • Executes dropped EXE

    • Adds Run key to start application

    • Detected potential entity reuse from brand microsoft.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Bypass User Account Control

1
T1088

Defense Evasion

Bypass User Account Control

1
T1088

Disabling Security Tools

1
T1089

Modify Registry

4
T1112

Discovery

System Information Discovery

1
T1082

Remote System Discovery

1
T1018

Tasks