General

  • Target

    7c09d979fd266f49eb9418364e54d1cfe596bd343073eb5175539d3a4edf898bN.exe

  • Size

    1.4MB

  • Sample

    250104-npvfnaxmhz

  • MD5

    e002d88c5146ec8f42bcc9cf0a029af0

  • SHA1

    88ce6da042c371b5ca59a86b3e8955d13d40aa7d

  • SHA256

    7c09d979fd266f49eb9418364e54d1cfe596bd343073eb5175539d3a4edf898b

  • SHA512

    c88ac937212bc0dfb0cdb020f7415550f086e593720c868f4af1f49e0134f8b1cc2d0c22fc12c3d8260628766a5df013030b21bc8883b0c2b7f7a0bf68c8f927

  • SSDEEP

    24576:lD39dlfGQrFUspugRNJI2DJnUw9W/j+BeKJ33G:lF+QrFUBgq25eKZW

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

Extracted

Family

remcos

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

      7c09d979fd266f49eb9418364e54d1cfe596bd343073eb5175539d3a4edf898bN.exe

    • Size

      1.4MB

    • MD5

      e002d88c5146ec8f42bcc9cf0a029af0

    • SHA1

      88ce6da042c371b5ca59a86b3e8955d13d40aa7d

    • SHA256

      7c09d979fd266f49eb9418364e54d1cfe596bd343073eb5175539d3a4edf898b

    • SHA512

      c88ac937212bc0dfb0cdb020f7415550f086e593720c868f4af1f49e0134f8b1cc2d0c22fc12c3d8260628766a5df013030b21bc8883b0c2b7f7a0bf68c8f927

    • SSDEEP

      24576:lD39dlfGQrFUspugRNJI2DJnUw9W/j+BeKJ33G:lF+QrFUBgq25eKZW

    • 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