General

  • Target

    f23d4cf3e391da8f6a154caee6ba5bf06242bc3591c0848d00546fa5706b6056.exe

  • Size

    1.1MB

  • Sample

    241202-t5azvaslhv

  • MD5

    70a40446480a404cd51389a61910da94

  • SHA1

    607fa7d17fb197a5de8deab8beb537dc6d19dd5d

  • SHA256

    f23d4cf3e391da8f6a154caee6ba5bf06242bc3591c0848d00546fa5706b6056

  • SHA512

    77a5013512f79842f4ab7da66f7dbc07eef2715da178462c85ebf6b3d68f7d126f679f5dcd5a1490e793cb9a65d5c25474b973626838877e438b87c46ba0adb6

  • SSDEEP

    24576:XTbM8vhEjkGD+JV9SQTOk/t1nkNzE681ZWsxT:+lKJjn1tZkyRbjT

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

103.195.236.227:2728

Attributes
  • audio_folder

    MicRecords

  • audio_path

    ApplicationPath

  • 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-2OT6B6

  • 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

      f23d4cf3e391da8f6a154caee6ba5bf06242bc3591c0848d00546fa5706b6056.exe

    • Size

      1.1MB

    • MD5

      70a40446480a404cd51389a61910da94

    • SHA1

      607fa7d17fb197a5de8deab8beb537dc6d19dd5d

    • SHA256

      f23d4cf3e391da8f6a154caee6ba5bf06242bc3591c0848d00546fa5706b6056

    • SHA512

      77a5013512f79842f4ab7da66f7dbc07eef2715da178462c85ebf6b3d68f7d126f679f5dcd5a1490e793cb9a65d5c25474b973626838877e438b87c46ba0adb6

    • SSDEEP

      24576:XTbM8vhEjkGD+JV9SQTOk/t1nkNzE681ZWsxT:+lKJjn1tZkyRbjT

    • Remcos

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

    • Remcos family

    • 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.

    • Uses browser remote debugging

      Can be used control the browser and steal sensitive information such as credentials and session cookies.

    • 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