General

  • Target

    rfq1960.gz

  • Size

    879KB

  • Sample

    240723-nlldkstbqe

  • MD5

    0bf562ca1a78c3aa86732e50fb0c36a3

  • SHA1

    892fd1168cc1267a9823fa9839d5fdefc2700cbc

  • SHA256

    cd231d9c643a1c98120aad79446370a039cfc5483fcceaeedf80b7a933de8758

  • SHA512

    49cbcf99178ce26de9ef0c69b95f0c2a741a774f00c2208b2fd177589b75274b506822c178265f1998eb4c69e8055bef52d3b2291e0f99e4319f92745e600502

  • SSDEEP

    12288:5rJM0NSo9Ch3BztmE9TZQcvLIQ7LbvPk9tx84zihaoJlDItMdP72nW+eXJDlYEdT:xJM0kCCh3BhvKcvLfLkdNSJ5YnwZ4Rg

Malware Config

Extracted

Family

remcos

Botnet

5764576

C2

172.93.218.178:45667

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

    765-XJJE0J

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    Remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      rfq1960.exe

    • Size

      904KB

    • MD5

      38b63c968b2733cef310a6df2dcfa478

    • SHA1

      bbbb4dcf4ecc6364af54480929d430da1c460a13

    • SHA256

      2768689f6c4a60b7fe18d6c87fdecd8a7f8dceefa298a5851c4a7c6909f3a92d

    • SHA512

      ab9486482bfae4c5a86a5d3dbe9aa47b003d9d74965b5fbd24f72a30ee1bd5a34a75cbcecff98aa3852e7c2019a582f8633bc1c8d762a65ef9084fb00791f3da

    • SSDEEP

      24576:CRv6SSp2ReQ/tOsbwHsIS7NjkDpGrWbv8MXK:CJZeQcsUHPSZjkDpcWb3

    • Remcos

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

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Checks computer location settings

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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks