Overview

overview

8

Static

static

3

client.exe

windows10-2004-x64

7

client.exe

windows11-ltsc_2024-x64

8

Analysis

  • max time kernel
    149s
  • max time network
    145s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260617-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260617-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    20/06/2026, 21:55

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General

  • Target
    client.exe
  • Size 2.9MB
  • Sample260620-1s387aay5x
  • SHA256 eb2cca230b99d059355c3d4d2c35e9585aedd030c7477535b86bbc950d7ea2a9
  • 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
  • Executes dropped EXE 3 IoCs
  • Enumerates connected drives 3 TTPs 2 IoCs

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

  • Checks system information in the registry 2 TTPs 2 IoCs

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

  • Drops file in System32 directory 10 IoCs
  • 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 38 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 54 IoCs
  • Suspicious use of SendNotifyMessage 39 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\client.exe
    "C:\Users\Admin\AppData\Local\Temp\client.exe"
    1⤵
    • Drops file in System32 directory
    • Suspicious use of AdjustPrivilegeToken
    PID:5464
  • C:\Windows\System32\wbem\WmiPerfHost.exe
    "C:\Windows\System32\wbem\WmiPerfHost.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:4224
  • C:\ProgramData\Microsoft\Windows\PerfHost\PerfHostSvc.exe
    "C:\ProgramData\Microsoft\Windows\PerfHost\PerfHostSvc.exe"
    1⤵
    • Executes dropped EXE
    • Checks system information in the registry
    • Drops file in System32 directory
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:1036
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:400
    • 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:356
  • 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:436
  • 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:5208
  • C:\Windows\System32\System interrupts.exe
    "C:\Windows\System32\System interrupts.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    PID:4348

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

        System interrupts.exe
        • Path C:\Windows\System32\System interrupts.exe
        • Size 3.9MB
        • SHA256 aa95c54f7deb3693b2221315b71a1657291e84e975553041d41b48ffd76c80b8
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        WmiPerfHost.exe
        • Path C:\Windows\System32\wbem\WmiPerfHost.exe
        • Size 2.9MB
        • SHA256 eb2cca230b99d059355c3d4d2c35e9585aedd030c7477535b86bbc950d7ea2a9
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/356-209-0x000000000DDF0000-0x000000000E66B000-memory.dmp
        Download

        memory/1036-29-0x0000000140000000-0x000000014272D000-memory.dmp
        Download

        memory/1036-39-0x00007FF7CF200000-0x00007FF7CF4EE000-memory.dmp
        Download

        memory/1036-34-0x0000000140000000-0x000000014272D000-memory.dmp
        Download

        memory/1036-31-0x0000000140000000-0x000000014272D000-memory.dmp
        Download

        memory/1036-30-0x0000000140000000-0x000000014272D000-memory.dmp
        Download

        memory/4224-24-0x0000000140000000-0x000000014272D000-memory.dmp
        Download

        memory/4224-27-0x0000000140000000-0x000000014272D000-memory.dmp
        Download

        memory/4224-26-0x0000000140000000-0x000000014272D000-memory.dmp
        Download

        memory/4224-25-0x0000000140000000-0x000000014272D000-memory.dmp
        Download

        memory/4224-35-0x0000000140000000-0x000000014272D000-memory.dmp
        Download

        memory/4224-38-0x00007FF660960000-0x00007FF660C4E000-memory.dmp
        Download

        memory/4348-221-0x00007FF6A7E40000-0x00007FF6A8229000-memory.dmp
        Download

        memory/4348-217-0x000001A838630000-0x000001A838650000-memory.dmp
        Download

        memory/5208-63-0x0000013C001E0000-0x0000013C002E0000-memory.dmp
        Download

        memory/5208-64-0x0000013C001E0000-0x0000013C002E0000-memory.dmp
        Download

        memory/5208-62-0x0000013C001E0000-0x0000013C002E0000-memory.dmp
        Download

        memory/5208-108-0x0000013C14290000-0x0000013C142B0000-memory.dmp
        Download

        memory/5208-73-0x0000013C03A30000-0x0000013C03A50000-memory.dmp
        Download

        memory/5208-74-0x0000013C13E90000-0x0000013C13F90000-memory.dmp
        Download

        memory/5208-86-0x0000013C03D70000-0x0000013C03D90000-memory.dmp
        Download

        memory/5464-14-0x0000000140000000-0x000000014272D000-memory.dmp
        Download

        memory/5464-20-0x00007FF78E350000-0x00007FF78E63E000-memory.dmp
        Download

        memory/5464-2-0x0000000140000000-0x000000014272D000-memory.dmp
        Download

        memory/5464-1-0x0000000140000000-0x000000014272D000-memory.dmp
        Download

        memory/5464-21-0x0000000140000000-0x000000014272D000-memory.dmp
        Download

        memory/5464-3-0x0000000140000000-0x000000014272D000-memory.dmp
        Download