General

  • Target

    tmp.bin

  • Size

    851KB

  • Sample

    240729-hs8vkasard

  • MD5

    2153f4ceedf90e1f7a781a93fa183417

  • SHA1

    a732fe0e397a3ed7250441a322ca3b77e88cf792

  • SHA256

    bcc3db95215f4c2c8d821377f9a98f4d0df6078cee6a1b100480786973f1b5b5

  • SHA512

    d2590d7d5d4d8fff0983c523bc16e0f71576756fa39ce052b39d87c24e0bfe7ab87953ca5b7432251af5629f42a70651139800b7c054def8f416c8ba01e705d4

  • SSDEEP

    24576:KYBfQYzELibC4jGl7Wud08XzvFn9j5Utq:KYBtbC4ql0ozt9j5Ut

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

107.175.229.139:8823

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-2BGC0K

  • 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

      tmp.bin

    • Size

      851KB

    • MD5

      2153f4ceedf90e1f7a781a93fa183417

    • SHA1

      a732fe0e397a3ed7250441a322ca3b77e88cf792

    • SHA256

      bcc3db95215f4c2c8d821377f9a98f4d0df6078cee6a1b100480786973f1b5b5

    • SHA512

      d2590d7d5d4d8fff0983c523bc16e0f71576756fa39ce052b39d87c24e0bfe7ab87953ca5b7432251af5629f42a70651139800b7c054def8f416c8ba01e705d4

    • SSDEEP

      24576:KYBfQYzELibC4jGl7Wud08XzvFn9j5Utq:KYBtbC4ql0ozt9j5Ut

    • 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

    • Drops startup file

    • 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