General

  • Target

    debe72116b9c78adf0bedd9ccdf4251146a51d090312d88286d5de81ea48ae99

  • Size

    1.1MB

  • Sample

    250330-yxpv9awsdx

  • MD5

    c998e3a86713accbfb925c5e57b3df50

  • SHA1

    c378fe324c825a97c80a252512f546bac9ed56a5

  • SHA256

    debe72116b9c78adf0bedd9ccdf4251146a51d090312d88286d5de81ea48ae99

  • SHA512

    e8e91874628c51f2ef0d28e464290b3dd2de07ee0fc9c92b9b084f5378cd6eeffe960f6fc1ebc27f5f13e9931845d8c447769f5a65d31926aa9ec48d831d4c1c

  • SSDEEP

    12288:Vp+rgRNyA55IxJ+feDOa9rZj5XqkJD0QrOod7XxlW91RRzwAY3Aks1:VpugRNJI1D39dlfGQrFUxwAeAks1

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Host

C2

213.183.58.19:4000

Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    remcos.exe

  • copy_folder

    remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    true

  • install_flag

    false

  • install_path

    %AppData%

  • keylog_crypt

    true

  • keylog_file

    read.dat

  • keylog_flag

    false

  • keylog_folder

    CastC

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    remcos_sccafsoidz

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screens

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • startup_value

    remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      debe72116b9c78adf0bedd9ccdf4251146a51d090312d88286d5de81ea48ae99

    • Size

      1.1MB

    • MD5

      c998e3a86713accbfb925c5e57b3df50

    • SHA1

      c378fe324c825a97c80a252512f546bac9ed56a5

    • SHA256

      debe72116b9c78adf0bedd9ccdf4251146a51d090312d88286d5de81ea48ae99

    • SHA512

      e8e91874628c51f2ef0d28e464290b3dd2de07ee0fc9c92b9b084f5378cd6eeffe960f6fc1ebc27f5f13e9931845d8c447769f5a65d31926aa9ec48d831d4c1c

    • SSDEEP

      12288:Vp+rgRNyA55IxJ+feDOa9rZj5XqkJD0QrOod7XxlW91RRzwAY3Aks1:VpugRNJI1D39dlfGQrFUxwAeAks1

    • Remcos

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

    • Remcos family

    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks