General

  • Target

    MalwareBazaar.13

  • Size

    1.2MB

  • Sample

    240711-j8b17szflc

  • MD5

    24a944104d4673c6ddb64b2ef5c6dd57

  • SHA1

    6a528e32c5d676f5399de2141fb8ea31210bfb32

  • SHA256

    cd1dbeedd93d1c0bf3c76a1e5cd2fd4cf1f0d195226dca32d85757301aba43b0

  • SHA512

    4746f945e4dec15714a65764f00fc3af01631a1a05cdc9e8294cd7c2166b63e8d8983295c1eca46280929dcf952849f962aed4bf5c0a4ab27fe2daf350f076f2

  • SSDEEP

    24576:J6nVMk+HIj90ckN5xxNtIVGmUuX8Ts0bydWy2UE43YP0b8LLuwPu8Xlc:8Vz7t+xkGzaUlPW2Lukud

Malware Config

Extracted

Family

remcos

Botnet

nsppd

C2

75.127.7.188:2404

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    F-11.exe

  • copy_folder

    F-11

  • delete_file

    false

  • hide_file

    true

  • hide_keylog_file

    false

  • install_flag

    false

  • install_path

    %WinDir%\System32

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    MUJ

  • keylog_path

    %WinDir%\System32

  • mouse_option

    false

  • mutex

    Tpn-C0MW43

  • 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

      MalwareBazaar.13

    • Size

      1.2MB

    • MD5

      24a944104d4673c6ddb64b2ef5c6dd57

    • SHA1

      6a528e32c5d676f5399de2141fb8ea31210bfb32

    • SHA256

      cd1dbeedd93d1c0bf3c76a1e5cd2fd4cf1f0d195226dca32d85757301aba43b0

    • SHA512

      4746f945e4dec15714a65764f00fc3af01631a1a05cdc9e8294cd7c2166b63e8d8983295c1eca46280929dcf952849f962aed4bf5c0a4ab27fe2daf350f076f2

    • SSDEEP

      24576:J6nVMk+HIj90ckN5xxNtIVGmUuX8Ts0bydWy2UE43YP0b8LLuwPu8Xlc:8Vz7t+xkGzaUlPW2Lukud

    • 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.

    • Disables Task Manager via registry modification

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks