Overview

overview

8

Static

static

3

KryptonPlu...t_.jar

windows10-2004-x64

6

KryptonPlu...t_.jar

windows11-ltsc_2024-x64

8

Analysis

  • max time kernel
    137s
  • max time network
    149s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260706-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260706-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    09/07/2026, 05:54

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General

  • Target
    KryptonPlus-_minecraft_.jar
  • Size 5.0MB
  • Sample260709-gl11psdy9v
  • SHA256 13f6a610e6be5a5f8f91a7022a7f65f95ce143a3258b23fb76f80bb7baf261b9
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
8/10
adwarediscoverypersistenceransomwarespyware

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
  • Drops desktop.ini file(s) 1 IoCs
  • Enumerates connected drives 3 TTPs 2 IoCs

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

  • Network Service Discovery 1 TTPs 1 IoCs

    Attempt to gather information on host's network.

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

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

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor 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 36 IoCs
  • Suspicious use of FindShellTrayWindow 53 IoCs
  • Suspicious use of SendNotifyMessage 40 IoCs
  • Suspicious use of SetWindowsHookEx 4 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

Processes

  • C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
    java -jar C:\Users\Admin\AppData\Local\Temp\KryptonPlus-_minecraft_.jar
    1⤵
      PID:5132
    • C:\Windows\System32\GameBarPresenceWriter.exe
      "C:\Windows\System32\GameBarPresenceWriter.exe" -ServerName:Windows.Gaming.GameBar.Internal.PresenceWriterServer
      1⤵
      • Network Service Discovery
      PID:3548
    • C:\Windows\system32\OpenWith.exe
      C:\Windows\system32\OpenWith.exe -Embedding
      1⤵
      • Suspicious use of SetWindowsHookEx
      PID:4120
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k BcastDVRUserService -s BcastDVRUserService
      1⤵
      • Drops desktop.ini file(s)
      • Checks processor information in registry
      • Modifies registry class
      PID:5112
    • C:\Windows\system32\sihost.exe
      sihost.exe
      1⤵
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:3128
      • 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:5760
    • 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:4156
    • 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:6000

    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

          desktop.ini
          • Path C:\Users\Admin\Videos\Captures\desktop.ini
          • Size 190B
          • SHA256 86d9f822aeb989755fac82929e8db369b3f5f04117ef96fd76e3d5f920a501d2
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          memory/4156-28-0x00000204801E0000-0x00000204802E0000-memory.dmp
          Download

          memory/4156-91-0x0000020494290000-0x00000204942B0000-memory.dmp
          Download

          memory/4156-56-0x0000020481E90000-0x0000020481F90000-memory.dmp
          Download

          memory/4156-61-0x0000020481DB0000-0x0000020481DD0000-memory.dmp
          Download

          memory/4156-55-0x0000020481C90000-0x0000020481CB0000-memory.dmp
          Download

          memory/5132-2-0x0000020B6E980000-0x0000020B6EBF0000-memory.dmp
          Download

          memory/5132-11-0x0000020B6CF20000-0x0000020B6CF21000-memory.dmp
          Download

          memory/5132-25-0x0000020B6E980000-0x0000020B6EBF0000-memory.dmp
          Download

          memory/5760-202-0x000000000E1F0000-0x000000000EA6B000-memory.dmp
          Download