Overview

overview

10

Static

static

10

st25.exe

windows10-2004-x64

10

st25.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    st25.exe
  • Size 645KB
  • Sample261002-e7wa8sx1dv
  • SHA256 f1a15e7d4b05387f9ee883d0245a5e51f1a97a4e1081d59b8175d3daacfec8e7
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
remcosremotehostdiscoverypersistenceratspywarestealersuricata

Malware Config

Extracted

Family

  • remcos

Version

  • 7.3.1 Pro

Botnet

  • RemoteHost

C2

  • 123but.com:443

  • casino-igrice.me:443

  • photo-chronicles.com:443

  • cihuy88-91.com:443

  • cihuy88-91.com:80

Attributes
  • audio_folder

    MicRecords

  • audio_path

    %Temp%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    s8.exe

  • copy_folder

    s8

  • delete_file

    false

  • hide_file

    true

  • hide_keylog_file

    false

  • install_flag

    true

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    s8

  • mouse_option

    false

  • mutex

    s8-BREM10

  • screenshot_crypt

    false

  • screenshot_flag

    true

  • screenshot_folder

    Screenshots

  • screenshot_path

    %SystemDrive%

  • screenshot_time

    5

  • startup_value

    

  • take_screenshot_option

    true

  • take_screenshot_time

    5

  • take_screenshot_title

    chrome;discord;facebook;telegram;whatsapp;youtube;instagram;tiktok;spotify;netflix;zoom;teams;slack;steam;vlc;coccoc

Targets

    • Target
      st25.exe
    • Size 645KB
    • SHA256 f1a15e7d4b05387f9ee883d0245a5e51f1a97a4e1081d59b8175d3daacfec8e7
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    remotehostdiscoveryremcospersistenceratspywarestealersuricata

    • Family: Remcos

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

      ratremcos

    • Suricata alert: REMCOS RAT Malware Outbound C2 Communication

      Network activity triggered a Suricata alert

      suricataremcos

    • Adds policy Run key to start application

      persistence

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Adds Run key to start application

      persistence
    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks