Overview

overview

10

Static

static

10

4f6384ff92...60.exe

windows10-2004-x64

10

4f6384ff92...60.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    125s
  • max time network
    147s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    02/07/2026, 15:25

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General

  • Target
    4f6384ff92b9556d23eb0ad8abbc695f6e3c1cddbc4631ef4beb53b6d360b360.exe
  • Size 46KB
  • Sample260702-strmsad14k
  • SHA256 4f6384ff92b9556d23eb0ad8abbc695f6e3c1cddbc4631ef4beb53b6d360b360
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
adwarenullasyncratpersistenceransomwareratspyware

Malware Config

Extracted

Family

  • asyncrat

Version

  • 0.5.6A

Botnet

  • null

C2

  • keukengemaal.nl:6606

  • keukengemaal.nl:7707

  • keukengemaal.nl:8808

  • keukengemaal.nl:8080

  • keukengemaal.nl:443

  • keukengemaal.nl:80

Mutex

  • cwxryxwiuxbppsntlui

Attributes
  • delay

    5

  • install

    false

  • install_folder

    %AppData%

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.

  • 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 38 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 37 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\4f6384ff92b9556d23eb0ad8abbc695f6e3c1cddbc4631ef4beb53b6d360b360.exe
    "C:\Users\Admin\AppData\Local\Temp\4f6384ff92b9556d23eb0ad8abbc695f6e3c1cddbc4631ef4beb53b6d360b360.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:2988
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:1008
    • 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:4424
  • 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:3552
  • 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:4128

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 595B
        • SHA256 d4e60617c2afab8263febabe7f14f18595715078d71307a8cefe0707dae76dee
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        memory/2988-6-0x00007FFF18BB0000-0x00007FFF19554000-memory.dmp
        Download

        memory/2988-2-0x00007FFF18BB0000-0x00007FFF19554000-memory.dmp
        Download

        memory/2988-3-0x00007FFF18BB0000-0x00007FFF19554000-memory.dmp
        Download

        memory/2988-4-0x00007FFF18BB0000-0x00007FFF19554000-memory.dmp
        Download

        memory/2988-5-0x00007FFF18BB0000-0x00007FFF19554000-memory.dmp
        Download

        memory/2988-0-0x00000000003F0000-0x0000000000402000-memory.dmp
        Download

        memory/2988-1-0x00007FFF18D3F000-0x00007FFF18D40000-memory.dmp
        Download

        memory/4128-21-0x000001A8001E0000-0x000001A8002E0000-memory.dmp
        Download

        memory/4128-23-0x000001A8001E0000-0x000001A8002E0000-memory.dmp
        Download

        memory/4128-22-0x000001A8001E0000-0x000001A8002E0000-memory.dmp
        Download

        memory/4128-39-0x000001A801E80000-0x000001A801F80000-memory.dmp
        Download

        memory/4128-38-0x000001A801920000-0x000001A801940000-memory.dmp
        Download

        memory/4128-71-0x000001A814200000-0x000001A814220000-memory.dmp
        Download

        memory/4128-54-0x000001A801C80000-0x000001A801CA0000-memory.dmp
        Download