General

  • Target

    2833c6001e4a986864905132528cb8a021b3d49413b6a1305074e3106fe83b7eN

  • Size

    2.3MB

  • Sample

    241001-qsntds1hqr

  • MD5

    db2560e13f011b4c558289a05713b340

  • SHA1

    26e642b39e4531a9106704bfc0e0d28acb995305

  • SHA256

    2833c6001e4a986864905132528cb8a021b3d49413b6a1305074e3106fe83b7e

  • SHA512

    1716f0c46ec23c78b24239d0ed9d6453848df33b21a210f5439cfa101b3c9ce221bc72312c9ac2bf6df13c76648ac38b24ff8d0dcbc11092f9dab6ef8e4ac5cc

  • SSDEEP

    24576:HD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjYF4avnXJJJlnp:Hp7E+QrFUBgq2SnDnp

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

      2833c6001e4a986864905132528cb8a021b3d49413b6a1305074e3106fe83b7eN

    • Size

      2.3MB

    • MD5

      db2560e13f011b4c558289a05713b340

    • SHA1

      26e642b39e4531a9106704bfc0e0d28acb995305

    • SHA256

      2833c6001e4a986864905132528cb8a021b3d49413b6a1305074e3106fe83b7e

    • SHA512

      1716f0c46ec23c78b24239d0ed9d6453848df33b21a210f5439cfa101b3c9ce221bc72312c9ac2bf6df13c76648ac38b24ff8d0dcbc11092f9dab6ef8e4ac5cc

    • SSDEEP

      24576:HD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjYF4avnXJJJlnp:Hp7E+QrFUBgq2SnDnp

    • 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