General

  • Target

    21112024_1513_Outstanding Invoices_pdf.vbs.rar

  • Size

    22KB

  • Sample

    241121-sl31vatdml

  • MD5

    7905cd8084e3bfbceffcca98b737a8ff

  • SHA1

    13567b50749a672c1999a1cda1c78b26089b4e8c

  • SHA256

    a11af44af71055f4f8a790f714eee5fa1db06d846c64ff3ff00db7100e39d36f

  • SHA512

    197dc8faf01292608679065c197a3c7ecbd19f5f47782bace11ec6b9a960f15c46d9c424d8a8b193b5cc10a0e131cad7144de2816fd565e0b4b1c1a99679369a

  • SSDEEP

    384:hyd/Op5guCan61/Fc7p+vOsNl3H+5fqOkVX16smJo2U7AgYgpCEONfJsFNub+lVM:hydOp5guCanGFhvOaudqOMl4Josvy/N4

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

154.216.18.214:2404

Attributes
  • audio_folder

    MicRecords

  • 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-AOD6MB

  • 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

      Outstanding Invoices_pdf.vbs

    • Size

      38KB

    • MD5

      da585c076f85367266cc0c6278863775

    • SHA1

      5f20adced6dcac42336a587c4c99036098f75691

    • SHA256

      1bd7e51b56b53d6522565bee13bf0fe855b27ff37cddcc4d71cfced82e01e86f

    • SHA512

      da39a7bb7d92eadcd50b06d6c12cf9f10b4e5aa3ec6a201984f41556ea9825948ec03cc1a47c07ba7fb50169b9eb3d95fb7bc1efa78b54c7ac180723ef95cb52

    • SSDEEP

      768:CJLtBS6wlVggNDAAE1yU2QLIeG34mMEeVMSjBLf20KnHtTkoi3zToBEWLuJP:CJJBSxNDlE1y8Lps4mMEXSlLf54koiXJ

    • 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

    • Blocklisted process makes network request

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Accesses Microsoft Outlook accounts

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks