General

  • Target

    8c44a141ad79f060aa0f3569417620f454dfc96f27c769a3f7f043dc208bff08.vbs

  • Size

    33KB

  • Sample

    241128-dlqyysymfn

  • MD5

    874b7c74ba70048322868f15101e716f

  • SHA1

    2bff6a5d0d550508cea89b84b11751d47ac3354b

  • SHA256

    8c44a141ad79f060aa0f3569417620f454dfc96f27c769a3f7f043dc208bff08

  • SHA512

    5d0e93ed6b8f9a6a9405f0c9932c3310226b7d50d28719f0b53e5b6b81bd3fb981f9deb4c966a67a8e290f532c64c174ea90b1b2133628948272e7572cbb3c80

  • SSDEEP

    768:9GfasXAuuTDKOp7p65M04NKzGqhZrvGU8hLVVnO0rP6oahTd:QfasqT+665qMGq/rgxO0KD

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

8766e34g8.duckdns.org:3782

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

    true

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-93TSMD

  • 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

      8c44a141ad79f060aa0f3569417620f454dfc96f27c769a3f7f043dc208bff08.vbs

    • Size

      33KB

    • MD5

      874b7c74ba70048322868f15101e716f

    • SHA1

      2bff6a5d0d550508cea89b84b11751d47ac3354b

    • SHA256

      8c44a141ad79f060aa0f3569417620f454dfc96f27c769a3f7f043dc208bff08

    • SHA512

      5d0e93ed6b8f9a6a9405f0c9932c3310226b7d50d28719f0b53e5b6b81bd3fb981f9deb4c966a67a8e290f532c64c174ea90b1b2133628948272e7572cbb3c80

    • SSDEEP

      768:9GfasXAuuTDKOp7p65M04NKzGqhZrvGU8hLVVnO0rP6oahTd:QfasqT+665qMGq/rgxO0KD

    • Remcos

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

    • Remcos family

    • UAC bypass

    • 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

    • Blocklisted process makes network request

    • 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.

    • Accesses Microsoft Outlook accounts

    • Adds Run key to start application

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks