General

  • Target

    e8150f2ffbd67dbb394b4d6889693cfd50b5bfaf74825f814c3b46832d6d8851

  • Size

    1.1MB

  • Sample

    250328-yyfc7s1saw

  • MD5

    73c43f022ab0f2c487b181d2f663da1d

  • SHA1

    717f9dc672446cab2a0bbfc3c776304370ec9d23

  • SHA256

    e8150f2ffbd67dbb394b4d6889693cfd50b5bfaf74825f814c3b46832d6d8851

  • SHA512

    9894abb1aeb900ded96cb1dbf8c75d2160e1ac8a5787525c5adb4f8c39feca3897ea026752a6028e5d1a62ca3c7acae6767532eb0305b1ec812915c6d13c68ff

  • SSDEEP

    12288:Gp+rgRNyA55IxJ+feDOa9rZj5XqkJD0QrOod7XxlW91RRzwAY3Ak83R1:GpugRNJI1D39dlfGQrFUxwAeAk83R1

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

      e8150f2ffbd67dbb394b4d6889693cfd50b5bfaf74825f814c3b46832d6d8851

    • Size

      1.1MB

    • MD5

      73c43f022ab0f2c487b181d2f663da1d

    • SHA1

      717f9dc672446cab2a0bbfc3c776304370ec9d23

    • SHA256

      e8150f2ffbd67dbb394b4d6889693cfd50b5bfaf74825f814c3b46832d6d8851

    • SHA512

      9894abb1aeb900ded96cb1dbf8c75d2160e1ac8a5787525c5adb4f8c39feca3897ea026752a6028e5d1a62ca3c7acae6767532eb0305b1ec812915c6d13c68ff

    • SSDEEP

      12288:Gp+rgRNyA55IxJ+feDOa9rZj5XqkJD0QrOod7XxlW91RRzwAY3Ak83R1:GpugRNJI1D39dlfGQrFUxwAeAk83R1

    • 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

    • 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