General

  • Target

    823e15c33f7b0b8a824bb0d2eb2b4353b39726a314fa75c2e84b8c9f2dc0af81.exe

  • Size

    966KB

  • Sample

    240822-b94hvawdqq

  • MD5

    edee826b3e374736185ba5728ee64ec1

  • SHA1

    2d2f5a376cda7d0f309f845210730aed64e3067e

  • SHA256

    823e15c33f7b0b8a824bb0d2eb2b4353b39726a314fa75c2e84b8c9f2dc0af81

  • SHA512

    7a5ac7b1441930788a603683073d96351d853e5781ed63a7fd457565c141a059934a9e483d4bf6aff3b0f92a7b260aa77992ba674ee8f4c499e5c6ec80324b52

  • SSDEEP

    24576:d0vn0PytJPufTIMhbn/M68IeVeV+XG4ZH+V14KnmktXF:d40KtJqNU68IvV4x+lnmi1

Malware Config

Extracted

Family

remcos

Botnet

Aug 21C

C2

method8888.ddns.net:6902

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-7BIOTJ

  • 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

      823e15c33f7b0b8a824bb0d2eb2b4353b39726a314fa75c2e84b8c9f2dc0af81.exe

    • Size

      966KB

    • MD5

      edee826b3e374736185ba5728ee64ec1

    • SHA1

      2d2f5a376cda7d0f309f845210730aed64e3067e

    • SHA256

      823e15c33f7b0b8a824bb0d2eb2b4353b39726a314fa75c2e84b8c9f2dc0af81

    • SHA512

      7a5ac7b1441930788a603683073d96351d853e5781ed63a7fd457565c141a059934a9e483d4bf6aff3b0f92a7b260aa77992ba674ee8f4c499e5c6ec80324b52

    • SSDEEP

      24576:d0vn0PytJPufTIMhbn/M68IeVeV+XG4ZH+V14KnmktXF:d40KtJqNU68IvV4x+lnmi1

    • 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

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Checks computer location settings

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

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses Microsoft Outlook accounts

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks