Resubmissions

27-11-2024 14:34

241127-rxft1sxlfs 10

27-11-2024 14:30

241127-rt7hkaxkf1 10

General

  • Target

    z34SOLICITUDDEP.vbs

  • Size

    33KB

  • Sample

    241127-rxft1sxlfs

  • MD5

    f6a1927833d8bdbed39158eeb8fec038

  • SHA1

    d166a956aee76d8c1a17b97905a2a554d71cd796

  • SHA256

    674affabc23dacf7e1dd9f1c663589f1c1f3a8383037f2cb1a547d48beaf34b9

  • SHA512

    6507a607f9964a923a40fdc329b3a1c5b9a36f5afb72129808a6a1121afa1c686c195a7cb8d3781e634d997ffded8b90a5a933bc9f3b06250be127373823b240

  • SSDEEP

    768:hFiasUNgXGy5FMJerHSLNj0Z6AkhZw7XJuBbVVjgHraV:jiasj5zH+GZ6v/w78XNgHuV

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

234d34gb6.duckdns.org:3613

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-CPWWCP

  • 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

      z34SOLICITUDDEP.vbs

    • Size

      33KB

    • MD5

      f6a1927833d8bdbed39158eeb8fec038

    • SHA1

      d166a956aee76d8c1a17b97905a2a554d71cd796

    • SHA256

      674affabc23dacf7e1dd9f1c663589f1c1f3a8383037f2cb1a547d48beaf34b9

    • SHA512

      6507a607f9964a923a40fdc329b3a1c5b9a36f5afb72129808a6a1121afa1c686c195a7cb8d3781e634d997ffded8b90a5a933bc9f3b06250be127373823b240

    • SSDEEP

      768:hFiasUNgXGy5FMJerHSLNj0Z6AkhZw7XJuBbVVjgHraV:jiasj5zH+GZ6v/w78XNgHuV

    • 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

    • 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