Overview

overview

10

Static

static

10

essential.exe

windows11-21h2-x64

10

essential.exe

windows11-ltsc_2024-x64

10

Analysis

  • geolocation tags

    nanew-jerseynorth-americaunited-statesususa
  • max time kernel
    900s
  • max time network
    900s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    17/08/2026, 00:08

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General

  • Target
    essential.exe
  • Size 45KB
  • Sample260817-ae7rcagf43
  • SHA256 4ad87eba53431d7fef6a2391ca7cbbf5a34d13ba0ee7f7b59f4aaad9946949c1
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
adwaredefaultdiscoveryasyncratpersistenceransomwareratspyware

Malware Config

Extracted

Family

  • asyncrat

Version

  • 0.5.8

Botnet

  • Default

Mutex

  • iVGC4kVxmnAJ

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

  • private_ip

    192.168.1.143

aes.plain

Signatures

  • Family: AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

    ratasyncrat
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    persistence
  • Enumerates connected drives 3 TTPs 2 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Checks SCSI registry key(s) 3 TTPs 62 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
    adwarespyware
  • Modifies registry class 39 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of FindShellTrayWindow 54 IoCs
  • Suspicious use of SendNotifyMessage 40 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence
  • Uses Volume Shadow Copy WMI provider

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\essential.exe
    "C:\Users\Admin\AppData\Local\Temp\essential.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    PID:4904
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k GPSvcGroup
    1⤵
      PID:3616
    • C:\Windows\system32\sihost.exe
      sihost.exe
      1⤵
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:5280
      • C:\Windows\explorer.exe
        explorer.exe /LOADSAVEDWINDOWS
        2⤵
        • Boot or Logon Autostart Execution: Active Setup
        • Enumerates connected drives
        • Checks SCSI registry key(s)
        • Modifies Internet Explorer settings
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of SetWindowsHookEx
        PID:2700
    • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
      "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
      1⤵
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:3132
    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
      1⤵
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:5864
    • C:\Windows\System32\SecurityHealthHost.exe
      \\?\C:\Windows\System32\SecurityHealthHost.exe {08728914-3F57-4D52-9E31-49DAECA5A80A} -Embedding
      1⤵
        PID:4092

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            prep_Activatable Class_Hermes_perf.cache
            • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\TempState\prep_Activatable Class_Hermes_perf.cache
            • Size 599B
            • SHA256 b536a3dae9ea5c69081f0491eed829e3b57e32401fdf49a63031bcd6b20e6fdb
            • MD5 SHA1 SHA512 TLSH
            Submit Download

            memory/2700-191-0x000000000E7D0000-0x000000000E93C000-memory.dmp
            Download

            memory/3132-27-0x000001D1F77B0000-0x000001D1F78B0000-memory.dmp
            Download

            memory/3132-56-0x000001D9FD090000-0x000001D9FD0B0000-memory.dmp
            Download

            memory/3132-33-0x000001D9FC300000-0x000001D9FC320000-memory.dmp
            Download

            memory/3132-34-0x000001D9FC830000-0x000001D9FC930000-memory.dmp
            Download

            memory/3132-28-0x000001D1F77B0000-0x000001D1F78B0000-memory.dmp
            Download

            memory/3132-39-0x000001D9FC650000-0x000001D9FC670000-memory.dmp
            Download

            memory/3132-26-0x000001D1F77B0000-0x000001D1F78B0000-memory.dmp
            Download

            memory/4904-3-0x0000000074CE2000-0x0000000074CE3000-memory.dmp
            Download

            memory/4904-4-0x0000000074CD0000-0x000000007548C000-memory.dmp
            Download

            memory/4904-2-0x0000000074CD0000-0x000000007548C000-memory.dmp
            Download

            memory/4904-0-0x0000000074CE2000-0x0000000074CE3000-memory.dmp
            Download

            memory/4904-1-0x0000000000EB0000-0x0000000000EC2000-memory.dmp
            Download