General

  • Target

    d2c5dc7c3ae85102be70e9876c15ab70N.exe

  • Size

    2.1MB

  • Sample

    240827-a3fmrswcmq

  • MD5

    d2c5dc7c3ae85102be70e9876c15ab70

  • SHA1

    ed07769ac41af457f4dda01e77f57e0028d37a9d

  • SHA256

    dbd6aab0a5ef80bec52ef212eb3800e71a3ed2e4891443ea7d80e774295452df

  • SHA512

    c53a75189b8a6d8870697889e8fb77a367fad7401449878098d937ec4f5ea7ea421f49924b970fb49f5061cf7e9e86ff7ba554930a47f39fcf88bbd65b7879ba

  • SSDEEP

    24576:kD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjYF4avnej7:kp7E+QrFUBgq2SnS

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

      d2c5dc7c3ae85102be70e9876c15ab70N.exe

    • Size

      2.1MB

    • MD5

      d2c5dc7c3ae85102be70e9876c15ab70

    • SHA1

      ed07769ac41af457f4dda01e77f57e0028d37a9d

    • SHA256

      dbd6aab0a5ef80bec52ef212eb3800e71a3ed2e4891443ea7d80e774295452df

    • SHA512

      c53a75189b8a6d8870697889e8fb77a367fad7401449878098d937ec4f5ea7ea421f49924b970fb49f5061cf7e9e86ff7ba554930a47f39fcf88bbd65b7879ba

    • SSDEEP

      24576:kD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjYF4avnej7:kp7E+QrFUBgq2SnS

    • 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