Overview

overview

8

Static

static

3

2026-07-03...za.exe

windows10-2004-x64

7

2026-07-03...za.exe

windows11-ltsc_2024-x64

8

Analysis

  • max time kernel
    148s
  • max time network
    148s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260630-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260630-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    03/07/2026, 21:40

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target
    2026-07-03_f99bb2917c7ca266af0633075530d22f_mespinoza.exe
  • Size 276KB
  • Sample260703-1jc1msgw6t
  • SHA256 e126257c64460d07995ed0f3790875857bb3284fe8b7c8175e846338ef7d6ca4
  • 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 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 52 IoCs
  • Suspicious use of FindShellTrayWindow 53 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\2026-07-03_f99bb2917c7ca266af0633075530d22f_mespinoza.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-03_f99bb2917c7ca266af0633075530d22f_mespinoza.exe"
    1⤵
      PID:4228
    • C:\Windows\system32\sihost.exe
      sihost.exe
      1⤵
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2080
      • 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:3448
    • 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:3572
    • 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:1344

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          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/3572-4-0x000001FA801E0000-0x000001FA802E0000-memory.dmp
          Download

          memory/3572-3-0x000001FA801E0000-0x000001FA802E0000-memory.dmp
          Download

          memory/3572-49-0x000001FA84400000-0x000001FA84420000-memory.dmp
          Download

          memory/3572-27-0x000001FA83E80000-0x000001FA83EA0000-memory.dmp
          Download

          memory/3572-15-0x000001FA83C20000-0x000001FA83C40000-memory.dmp
          Download

          memory/3572-17-0x000001FA84080000-0x000001FA84180000-memory.dmp
          Download

          memory/3572-183-0x000001FA80440000-0x000001FA80623000-memory.dmp
          Download

          memory/4228-1-0x000001E9344B0000-0x000001E9344B5000-memory.dmp
          Download

          memory/4228-0-0x000001E934390000-0x000001E934397000-memory.dmp
          Download