Overview

overview

10

Static

static

10

S8 App1.exe

windows10-2004-x64

10

S8 App1.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    22/09/2026, 12:40

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target
    S8 App1.exe
  • Size 645KB
  • Sample260922-pwet8aee87
  • SHA256 733653c8c152ebecb5ca71966ce65b0afa8cd77a094cabbcb8271c8880a6a3c9
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
remotehostremcospersistenceratspywarestealersuricata

Malware Config

Extracted

Family

  • remcos

Version

  • 7.3.1 Pro

Botnet

  • RemoteHost

C2

  • www.alpharush.ai:443

Attributes
  • audio_folder

    MicRecords

  • audio_path

    ApplicationPath

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    s8 toi choi.exe

  • copy_folder

    winservice

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    true

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    f4stb4ck-KDSV9I

  • screenshot_crypt

    false

  • screenshot_flag

    true

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    

  • take_screenshot_option

    true

  • take_screenshot_time

    5

  • take_screenshot_title

    chrome;discord;facebook;telegram

Signatures

  • Family: Remcos

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

    ratremcos
  • Suricata alert: REMCOS RAT Malware Outbound C2 Communication 42 IoCs

    Network activity triggered a Suricata alert

    suricataremcos
  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

    spywarestealer
  • Adds Run key to start application 2 TTPs 4 IoCs
    persistence
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\S8 App1.exe
    "C:\Users\Admin\AppData\Local\Temp\S8 App1.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:2456
    • C:\ProgramData\winservice\s8 toi choi.exe
      "C:\ProgramData\winservice\s8 toi choi.exe"
      2⤵
      • Suricata alert: REMCOS RAT Malware Outbound C2 Communication
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1688
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x00000000000004E4 0x00000000000004E8
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:5744

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        s8 toi choi.exe
        • Path C:\ProgramData\winservice\s8 toi choi.exe
        • Size 645KB
        • SHA256 733653c8c152ebecb5ca71966ce65b0afa8cd77a094cabbcb8271c8880a6a3c9
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download