General

  • Target

    36f01f372c5e40e552f46e941198c280N.exe

  • Size

    2.1MB

  • Sample

    240906-15nn9szhrn

  • MD5

    36f01f372c5e40e552f46e941198c280

  • SHA1

    30885bc357a3cb16f616186769995449c865823f

  • SHA256

    3e8bebf98bdc63654ac4758669094f2c5dd43818e6fde96b64b9ca4f43791dda

  • SHA512

    b7ce539760a01465e48059e370e80ff93b65b3ff50dcaed588e1389772cef1b7cc7c1c775b446bcd454f6d9dd045b9953b8d81f635dc155a1d76d63fa90dedfb

  • SSDEEP

    24576:ND39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjYF4avnejac:Np7E+QrFUBgq2SnA

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

      36f01f372c5e40e552f46e941198c280N.exe

    • Size

      2.1MB

    • MD5

      36f01f372c5e40e552f46e941198c280

    • SHA1

      30885bc357a3cb16f616186769995449c865823f

    • SHA256

      3e8bebf98bdc63654ac4758669094f2c5dd43818e6fde96b64b9ca4f43791dda

    • SHA512

      b7ce539760a01465e48059e370e80ff93b65b3ff50dcaed588e1389772cef1b7cc7c1c775b446bcd454f6d9dd045b9953b8d81f635dc155a1d76d63fa90dedfb

    • SSDEEP

      24576:ND39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjYF4avnejac:Np7E+QrFUBgq2SnA

    • Remcos

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

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

    • 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