General

  • Target

    d9c9afaa00e606c9eec0e592a1382583243ed92496cd3be8df37584deeb76354N.exe

  • Size

    1.4MB

  • Sample

    241219-bhfbya1lbr

  • MD5

    d24fc9836a5fe7ffa3798c8ea49d9460

  • SHA1

    1a85ac23f48b896695a8645a8818a5fc8166e541

  • SHA256

    d9c9afaa00e606c9eec0e592a1382583243ed92496cd3be8df37584deeb76354

  • SHA512

    f53750ddac4fb2850afb4137beea6bdb7735a2192b2ae82ca30b535021ef5c426fc23f51d500b39a529b3a0f130f1f08d523baba0654de475543fbd3920e668c

  • SSDEEP

    24576:1D39dlfGQrFUspugRNJI2DJnUw9W/j+BeKJOW:1F+QrFUBgq25eKwW

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

      d9c9afaa00e606c9eec0e592a1382583243ed92496cd3be8df37584deeb76354N.exe

    • Size

      1.4MB

    • MD5

      d24fc9836a5fe7ffa3798c8ea49d9460

    • SHA1

      1a85ac23f48b896695a8645a8818a5fc8166e541

    • SHA256

      d9c9afaa00e606c9eec0e592a1382583243ed92496cd3be8df37584deeb76354

    • SHA512

      f53750ddac4fb2850afb4137beea6bdb7735a2192b2ae82ca30b535021ef5c426fc23f51d500b39a529b3a0f130f1f08d523baba0654de475543fbd3920e668c

    • SSDEEP

      24576:1D39dlfGQrFUspugRNJI2DJnUw9W/j+BeKJOW:1F+QrFUBgq25eKwW

    • Remcos

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

    • Remcos family

    • 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