General

  • Target

    24092024142123092024Quotationpdf.tar.gz

  • Size

    859KB

  • Sample

    240924-1vkjvsxgkp

  • MD5

    4a09557ee8aa9f04475b7b2063f54c2f

  • SHA1

    8e10171e9d8b93edcfceb1efa534c0fd6b523c5c

  • SHA256

    154cf5e736dcc256fa3d229d1f0dcb4b29ac28081044757c5ae451ddf276c7b0

  • SHA512

    be1eaba29b6a9afd3735051330316d039e8e70c1d4c080e2bafd81ce6563dbdec46e951af41d117124f4ec37145b079cfb012876565b9104c25ae1fb72f80acb

  • SSDEEP

    24576:d9FksgZ6pIKNKyNIm+6KNcatgSNshvEWOboyfd:Pty6pdnDxOcauSaEWOzfd

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

127.0.0.1:59321

nnamoo.duckdns.org:59321

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-41EVS0

  • 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

      Quotation_pdf.exe

    • Size

      883KB

    • MD5

      571902de75705d1aeaa32be01459dc65

    • SHA1

      4ccf3c9a339146008c1d8466857e13d3c7752a05

    • SHA256

      8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5

    • SHA512

      966381cdeaf8213fefdca876052a59dcda9e2436cfc50b4516eca936ebb9e75b9421058969526fa0b46d06067a43398a51c8e7201fa72d39faa0153c4328a9d7

    • SSDEEP

      24576:kBGzjcJ6NacNEyNOU+6cNuuH2SNcjmYY4Swv:kE86N1l5x8uuWSpYXS2

    • 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