General

  • Target

    C_UsersAdministratorDesktopWernbvFILE_DOC_SSLMUNSRG0014624.js

  • Size

    600KB

  • Sample

    240916-h263bsverp

  • MD5

    2b1f137f22ac559ec305ce5cfa8890b4

  • SHA1

    78eea4d0412efdce79ecd7bd36381d9fcec3b07c

  • SHA256

    87a46f9efd26fa0b9182f12ee89ef19975fab1927d056629142608f27cc5f4b1

  • SHA512

    d772cf3cda1ac8368992d21217cd6c866a5554bc3f4e9ee728709c03d72e402f8bfcd5a21afc6e58dbcdba4090b0f9970b7adab857b1b6d85d123c24a616383c

  • SSDEEP

    12288:W8hhuwMaJTTfrjTsfY51YkMLrl5sDdNZftj0Ue6BzNv2kSw0OORbrHy3JTpgxRmX:BhJKIzFt4nR6jX5n

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

https://ia601606.us.archive.org/10/items/deathnote_202407/deathnote.jpg

exe.dropper

https://ia601606.us.archive.org/10/items/deathnote_202407/deathnote.jpg

Extracted

Family

remcos

Botnet

pc file

C2

185.150.191.117:4609

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    Remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-PICFH2

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      C_UsersAdministratorDesktopWernbvFILE_DOC_SSLMUNSRG0014624.js

    • Size

      600KB

    • MD5

      2b1f137f22ac559ec305ce5cfa8890b4

    • SHA1

      78eea4d0412efdce79ecd7bd36381d9fcec3b07c

    • SHA256

      87a46f9efd26fa0b9182f12ee89ef19975fab1927d056629142608f27cc5f4b1

    • SHA512

      d772cf3cda1ac8368992d21217cd6c866a5554bc3f4e9ee728709c03d72e402f8bfcd5a21afc6e58dbcdba4090b0f9970b7adab857b1b6d85d123c24a616383c

    • SSDEEP

      12288:W8hhuwMaJTTfrjTsfY51YkMLrl5sDdNZftj0Ue6BzNv2kSw0OORbrHy3JTpgxRmX:BhJKIzFt4nR6jX5n

    • Remcos

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

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

    • Detected Nirsoft tools

      Free utilities often used by attackers which can steal passwords, product keys, etc.

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • NirSoft WebBrowserPassView

      Password recovery tool for various web browsers

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Checks computer location settings

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

    • Accesses Microsoft Outlook accounts

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks