General

  • Target

    1986c21a4664201520f6291ae33387d02b66dda7a330464e58c2d30a19b7e811N

  • Size

    2.2MB

  • Sample

    240927-twbvsatdph

  • MD5

    c995b824e5d80d6a9e945ac84177a220

  • SHA1

    3fdca4ad9dde7ca7530ed248663d5aa77750df7e

  • SHA256

    1986c21a4664201520f6291ae33387d02b66dda7a330464e58c2d30a19b7e811

  • SHA512

    bfaa72218ccf057f983e3654abf5d27fe8bfc717a7e194ea898f2b86d817253cc6d33fe87dee208d39c58ef0853202b46885e09ca05bed7d66b225b3934bb174

  • SSDEEP

    24576:gD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjYF4avnXJJJ9:gp7E+QrFUBgq2Snv

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

      1986c21a4664201520f6291ae33387d02b66dda7a330464e58c2d30a19b7e811N

    • Size

      2.2MB

    • MD5

      c995b824e5d80d6a9e945ac84177a220

    • SHA1

      3fdca4ad9dde7ca7530ed248663d5aa77750df7e

    • SHA256

      1986c21a4664201520f6291ae33387d02b66dda7a330464e58c2d30a19b7e811

    • SHA512

      bfaa72218ccf057f983e3654abf5d27fe8bfc717a7e194ea898f2b86d817253cc6d33fe87dee208d39c58ef0853202b46885e09ca05bed7d66b225b3934bb174

    • SSDEEP

      24576:gD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjYF4avnXJJJ9:gp7E+QrFUBgq2Snv

    • 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