General

  • Target

    976bea63c8cf1f39ec45ed3eb69c5beb.exe

  • Size

    959KB

  • Sample

    241101-zfx1zawqbq

  • MD5

    976bea63c8cf1f39ec45ed3eb69c5beb

  • SHA1

    f707ca94bc8afe8d68d847a264ad77e15d5c8075

  • SHA256

    46f651c4920210777b0ba07daded16116fe92eacf759020b8e79cb9244c48e93

  • SHA512

    22003227effe345d6384e07cf5ee5c38ea5259653daa8e7b2f39ebba270e908c53a5b0b89e453349ee42e96901f25751b2f5f6ad8da0254182a426ef80dd07df

  • SSDEEP

    24576:WhLw9gTFvRIULTZPnRrnqmDhX7/XSY05atRNRdS:CZvRBXv7vhXzXhTbRdS

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

66.63.162.79:2404

Attributes
  • audio_folder

    MicRecords

  • audio_path

    ApplicationPath

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    Remcos

  • delete_file

    false

  • hide_file

    true

  • hide_keylog_file

    false

  • install_flag

    true

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-1CY96M

  • 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

      976bea63c8cf1f39ec45ed3eb69c5beb.exe

    • Size

      959KB

    • MD5

      976bea63c8cf1f39ec45ed3eb69c5beb

    • SHA1

      f707ca94bc8afe8d68d847a264ad77e15d5c8075

    • SHA256

      46f651c4920210777b0ba07daded16116fe92eacf759020b8e79cb9244c48e93

    • SHA512

      22003227effe345d6384e07cf5ee5c38ea5259653daa8e7b2f39ebba270e908c53a5b0b89e453349ee42e96901f25751b2f5f6ad8da0254182a426ef80dd07df

    • SSDEEP

      24576:WhLw9gTFvRIULTZPnRrnqmDhX7/XSY05atRNRdS:CZvRBXv7vhXzXhTbRdS

    • Remcos

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

    • Remcos family

    • 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.

    • Executes dropped EXE

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks