General

  • Target

    Request Quotation.exe

  • Size

    1.0MB

  • Sample

    240725-hgx9paxbke

  • MD5

    c9849a6295f2527f02fd7b9a0664d401

  • SHA1

    9db9709ad5446150bff3c3a4d193979753904866

  • SHA256

    52a6184f61de86b9bfe6abf00bbcf297a308bd91effb754d3bf16fd132384071

  • SHA512

    0f330d7bc780dbb1b9ef2bc92e018c29523aca29fda9e3f3f785e4c8f6fc06181e0e4c5bb5ad59f7a34409affa606d9d19c4f13981e8097c95778beef6cbd3ea

  • SSDEEP

    24576:E6Dlm/atGKanKxvdwEHfZTX0u/nJaRj9yin1mV/aJscLc:DDcCZfx+GQRjj1mj

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

127.0.0.1:52121

officerem.duckdns.org:52121

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-UNX1LL

  • 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

      Request Quotation.exe

    • Size

      1.0MB

    • MD5

      c9849a6295f2527f02fd7b9a0664d401

    • SHA1

      9db9709ad5446150bff3c3a4d193979753904866

    • SHA256

      52a6184f61de86b9bfe6abf00bbcf297a308bd91effb754d3bf16fd132384071

    • SHA512

      0f330d7bc780dbb1b9ef2bc92e018c29523aca29fda9e3f3f785e4c8f6fc06181e0e4c5bb5ad59f7a34409affa606d9d19c4f13981e8097c95778beef6cbd3ea

    • SSDEEP

      24576:E6Dlm/atGKanKxvdwEHfZTX0u/nJaRj9yin1mV/aJscLc:DDcCZfx+GQRjj1mj

    • 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

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Accesses Microsoft Outlook accounts

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks