General

  • Target

    20a10b7df467ee6948a1f4b666ce8ba0b33eb4a81c9f67912ac7683df353c891N.exe

  • Size

    1.4MB

  • Sample

    240926-qpqtkssera

  • MD5

    b4d397caac0e0dec84407be95e107290

  • SHA1

    abf8c56d5027eb924806157fd747682e717aba3a

  • SHA256

    20a10b7df467ee6948a1f4b666ce8ba0b33eb4a81c9f67912ac7683df353c891

  • SHA512

    6d044830436b82ec05db6cdb5e54c64ec77d6bd531334610ecb28541e05cf5ce8e8aca1cb992a2d8864a0270ff327566a3154eac0f132c8157c9982bd80ed152

  • SSDEEP

    24576:SD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjo/e3j:Sp7E+QrFUBgq2/3j

Malware Config

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

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

      20a10b7df467ee6948a1f4b666ce8ba0b33eb4a81c9f67912ac7683df353c891N.exe

    • Size

      1.4MB

    • MD5

      b4d397caac0e0dec84407be95e107290

    • SHA1

      abf8c56d5027eb924806157fd747682e717aba3a

    • SHA256

      20a10b7df467ee6948a1f4b666ce8ba0b33eb4a81c9f67912ac7683df353c891

    • SHA512

      6d044830436b82ec05db6cdb5e54c64ec77d6bd531334610ecb28541e05cf5ce8e8aca1cb992a2d8864a0270ff327566a3154eac0f132c8157c9982bd80ed152

    • SSDEEP

      24576:SD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjo/e3j:Sp7E+QrFUBgq2/3j

    • Remcos

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

    • 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