General

  • Target

    e98307f10fb1d21c36c2a1104288cd0ce29684490e591df56bdd362cf6afc124N.exe

  • Size

    1.4MB

  • Sample

    250104-2z255ssjay

  • MD5

    7db1a0b67a4f30a44b64919b8ab85280

  • SHA1

    b0d7831aa9191eeb2a3c2ff2f5784cea63262305

  • SHA256

    e98307f10fb1d21c36c2a1104288cd0ce29684490e591df56bdd362cf6afc124

  • SHA512

    3d4de1d54d527ee1c750202e2d24bf10c20fcd65b24b50deec051dee61446bd375d85aa291462aab39c99109563db7f39e2d1a488ce669252458bbc95439eecd

  • SSDEEP

    24576:gD39dlfGQrFUspugRNJI2DJnUw9W/j+BeKJ3U:gF+QrFUBgq25eKZU

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

      e98307f10fb1d21c36c2a1104288cd0ce29684490e591df56bdd362cf6afc124N.exe

    • Size

      1.4MB

    • MD5

      7db1a0b67a4f30a44b64919b8ab85280

    • SHA1

      b0d7831aa9191eeb2a3c2ff2f5784cea63262305

    • SHA256

      e98307f10fb1d21c36c2a1104288cd0ce29684490e591df56bdd362cf6afc124

    • SHA512

      3d4de1d54d527ee1c750202e2d24bf10c20fcd65b24b50deec051dee61446bd375d85aa291462aab39c99109563db7f39e2d1a488ce669252458bbc95439eecd

    • SSDEEP

      24576:gD39dlfGQrFUspugRNJI2DJnUw9W/j+BeKJ3U:gF+QrFUBgq25eKZU

    • 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