Overview

overview

8

Static

static

1

koalahook-main.zip

windows11-ltsc_2024-x64

1

koalahook-...ignore

windows11-ltsc_2024-x64

3

koalahook-...DME.md

windows11-ltsc_2024-x64

3

koalahook-...ook.py

windows11-ltsc_2024-x64

3

koalahook-...ts.txt

windows11-ltsc_2024-x64

1

koalahook-...un.bat

windows11-ltsc_2024-x64

1

koalahook-...NSE.md

windows11-ltsc_2024-x64

3

koalahook-...RMS.md

windows11-ltsc_2024-x64

8

koalahook-...in.png

windows11-ltsc_2024-x64

8

koalahook-...ge.png

windows11-ltsc_2024-x64

1

koalahook-...in.png

windows11-ltsc_2024-x64

1

Analysis

  • max time kernel
    899s
  • max time network
    854s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    06/07/2026, 15:24

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General

  • Target
    koalahook-main/src/preview/beforelogin.png
  • Size 755KB
  • Sample260706-ss86facz2p
  • SHA256 3008d41c5bd305700e19f082d9eb1a38bf7ef4a388dd3713649d8ac97cde9ecb
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
8/10
adwarepersistenceransomwarespyware

Malware Config

Signatures

  • 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 64 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 36 IoCs
  • Suspicious use of FindShellTrayWindow 54 IoCs
  • Suspicious use of SendNotifyMessage 43 IoCs
  • Suspicious use of SetWindowsHookEx 7 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:\Windows\system32\mspaint.exe
    "C:\Windows\system32\mspaint.exe" "C:\Users\Admin\AppData\Local\Temp\koalahook-main\src\preview\beforelogin.png"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    PID:3852
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s DeviceAssociationService
    1⤵
    • Checks SCSI registry key(s)
    PID:1576
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:964
    • 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:1828
  • 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:4088
  • 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:3568
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k GPSvcGroup
    1⤵
      PID:3220
    • C:\Windows\System32\SecurityHealthHost.exe
      \\?\C:\Windows\System32\SecurityHealthHost.exe {08728914-3F57-4D52-9E31-49DAECA5A80A} -Embedding
      1⤵
        PID:1456

      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/1828-176-0x000000000E1B0000-0x000000000EA2B000-memory.dmp
            Download

            memory/1828-223-0x000000000E1B0000-0x000000000EA2B000-memory.dmp
            Download

            memory/3568-177-0x000001B7006D0000-0x000001B70098C000-memory.dmp
            Download

            memory/3568-194-0x000001B7006D0000-0x000001B70098C000-memory.dmp
            Download

            memory/4088-2-0x0000020E001E0000-0x0000020E002E0000-memory.dmp
            Download

            memory/4088-14-0x0000020E03B80000-0x0000020E03BA0000-memory.dmp
            Download

            memory/4088-27-0x0000020E14680000-0x0000020E146A0000-memory.dmp
            Download

            memory/4088-9-0x0000020E13D60000-0x0000020E13E60000-memory.dmp
            Download

            memory/4088-8-0x0000020E03920000-0x0000020E03940000-memory.dmp
            Download