General

  • Target

    317ce86a4e5783cbfa78be1ce5950fe287d810f34d834d859df0bf7496625985.exe

  • Size

    2.0MB

  • Sample

    240723-s35k1azgkf

  • MD5

    8f424619f95580c7ce64bf3663046f60

  • SHA1

    83b585a40f4a8a9c421647cf88716b6200750a3b

  • SHA256

    317ce86a4e5783cbfa78be1ce5950fe287d810f34d834d859df0bf7496625985

  • SHA512

    e5c92c2bf2d874c10686e5d6a87fd30bfef9b8b87cc3571774fbc72ae8e7111626f675ac356df19377d50a670c8596882da2a6cc4ded40525dbc00907cab1f13

  • SSDEEP

    24576:WD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjYF4+cZkL:Wp7E+QrFUBgq29S

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

      317ce86a4e5783cbfa78be1ce5950fe287d810f34d834d859df0bf7496625985.exe

    • Size

      2.0MB

    • MD5

      8f424619f95580c7ce64bf3663046f60

    • SHA1

      83b585a40f4a8a9c421647cf88716b6200750a3b

    • SHA256

      317ce86a4e5783cbfa78be1ce5950fe287d810f34d834d859df0bf7496625985

    • SHA512

      e5c92c2bf2d874c10686e5d6a87fd30bfef9b8b87cc3571774fbc72ae8e7111626f675ac356df19377d50a670c8596882da2a6cc4ded40525dbc00907cab1f13

    • SSDEEP

      24576:WD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjYF4+cZkL:Wp7E+QrFUBgq29S

    • 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