General

  • Target

    download.exe

  • Size

    469KB

  • Sample

    240912-mxvkyssdrf

  • MD5

    caf2fd8e96fdffe86728ac3d3baca925

  • SHA1

    9c3d2eeb44669581c5d44bcd52e65390b8afcfa4

  • SHA256

    fadb49f75ed91c5de958fc26e52284a556a290cace533dbfad3c41089f7c8453

  • SHA512

    eb7fdbbedc49285e4705e6e35956dec8b741435a6648f99df762fc8a8f74c3478d3643ed47ef44d2c104cff5da6a0296634cfcea648bd69aed76feaa1c03d810

  • SSDEEP

    12288:Wmnk7iLJbpIpiRL6I2WhSKQ9ZsfZQSLn9:uiLJbpI7I2WhQqZ7L9

Malware Config

Extracted

Family

remcos

Botnet

SEPTEMBER

C2

ab9001.ddns.net:9001

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    vlc.exe

  • copy_folder

    vlc

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • keylog_crypt

    true

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-BUJRPX

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    Remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      download.exe

    • Size

      469KB

    • MD5

      caf2fd8e96fdffe86728ac3d3baca925

    • SHA1

      9c3d2eeb44669581c5d44bcd52e65390b8afcfa4

    • SHA256

      fadb49f75ed91c5de958fc26e52284a556a290cace533dbfad3c41089f7c8453

    • SHA512

      eb7fdbbedc49285e4705e6e35956dec8b741435a6648f99df762fc8a8f74c3478d3643ed47ef44d2c104cff5da6a0296634cfcea648bd69aed76feaa1c03d810

    • SSDEEP

      12288:Wmnk7iLJbpIpiRL6I2WhSKQ9ZsfZQSLn9:uiLJbpI7I2WhQqZ7L9

    • 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

    • 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