General

  • Target

    bbb638c562b3df98a2b1b636e82cfdd0N.exe

  • Size

    2.0MB

  • Sample

    240902-1b91eaxepq

  • MD5

    bbb638c562b3df98a2b1b636e82cfdd0

  • SHA1

    90778955c9cdf9977de455ea28979ca5095d242b

  • SHA256

    3d0ac904350f77a399f1ec7f6779c294c8be2c7f54eb7343c21f6df264edd7a2

  • SHA512

    a357391e15404d444c6f37826cc967cf89e652e890a69cc0284a4972847f2be42d718ac865e34c5475a3db3facdfc91379c98c9a1d836241e5658ac72b6b5acb

  • SSDEEP

    24576:/D39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPj8/j73Anet9/wL:/p7E+QrFUBgq2D

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

      bbb638c562b3df98a2b1b636e82cfdd0N.exe

    • Size

      2.0MB

    • MD5

      bbb638c562b3df98a2b1b636e82cfdd0

    • SHA1

      90778955c9cdf9977de455ea28979ca5095d242b

    • SHA256

      3d0ac904350f77a399f1ec7f6779c294c8be2c7f54eb7343c21f6df264edd7a2

    • SHA512

      a357391e15404d444c6f37826cc967cf89e652e890a69cc0284a4972847f2be42d718ac865e34c5475a3db3facdfc91379c98c9a1d836241e5658ac72b6b5acb

    • SSDEEP

      24576:/D39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPj8/j73Anet9/wL:/p7E+QrFUBgq2D

    • Remcos

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

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

    • 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