General

  • Target

    Reqt83291.vbs

  • Size

    63KB

  • Sample

    241211-lrgw8s1rgn

  • MD5

    67552a3cc2641ad2c640148836475c97

  • SHA1

    c35ae8937bbd48525c521fdb33aef88a1399bec0

  • SHA256

    ef0695bdd5f43136be86281b48a318c29b7d18268cca5e1956eff46ee655f858

  • SHA512

    b257ea0bfc83e38242602ccdaf33260d7003992930e3d1215535976cd51490f9dff608ede093d3e390b079bda48bf0ede40cfe63c480794b40931d965fe8b08c

  • SSDEEP

    1536:c/tTURy7UcHIBKNgJSxnsUlJkCwkHKPncWf5:axUkZIBxAxs7KK/cWx

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

154.216.18.62:2404

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-D98D6X

  • 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

      Reqt83291.vbs

    • Size

      63KB

    • MD5

      67552a3cc2641ad2c640148836475c97

    • SHA1

      c35ae8937bbd48525c521fdb33aef88a1399bec0

    • SHA256

      ef0695bdd5f43136be86281b48a318c29b7d18268cca5e1956eff46ee655f858

    • SHA512

      b257ea0bfc83e38242602ccdaf33260d7003992930e3d1215535976cd51490f9dff608ede093d3e390b079bda48bf0ede40cfe63c480794b40931d965fe8b08c

    • SSDEEP

      1536:c/tTURy7UcHIBKNgJSxnsUlJkCwkHKPncWf5:axUkZIBxAxs7KK/cWx

    • 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

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks