General

  • Target

    WNIOSEKBUDETOWY25-11-2024pdf.vbs

  • Size

    16KB

  • Sample

    241125-pkep3ssphq

  • MD5

    7629b8a9f44c0d82a77edd71ff758028

  • SHA1

    c7e7708565e250860139338d8a0dd79ba05a0b54

  • SHA256

    a9b35270a11c6bbcf9aeffdc5094105486beed9e772b59116f276584d9357e12

  • SHA512

    2ede58762d50013647f32a1b55c9979f0f99820c5e0fc2dbc94403d80f9a222fb07f319857e4fc2a25407b4c33d118250e4ff48475d83c49333c9c23a591d15c

  • SSDEEP

    384:9Wl6/kDhGteC20UFY0Z0o6m1PdFu+mTD5Za:3/kMteC2VFeo64PruJK

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

hg575438h-0.duckdns.org:23458

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-WNVZ5S

  • 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

      WNIOSEKBUDETOWY25-11-2024pdf.vbs

    • Size

      16KB

    • MD5

      7629b8a9f44c0d82a77edd71ff758028

    • SHA1

      c7e7708565e250860139338d8a0dd79ba05a0b54

    • SHA256

      a9b35270a11c6bbcf9aeffdc5094105486beed9e772b59116f276584d9357e12

    • SHA512

      2ede58762d50013647f32a1b55c9979f0f99820c5e0fc2dbc94403d80f9a222fb07f319857e4fc2a25407b4c33d118250e4ff48475d83c49333c9c23a591d15c

    • SSDEEP

      384:9Wl6/kDhGteC20UFY0Z0o6m1PdFu+mTD5Za:3/kMteC2VFeo64PruJK

    • 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