Overview

overview

8

Static

static

3

ut_br_play...ns.zip

windows10-2004-x64

1

ut_br_play...ns.zip

windows11-ltsc_2024-x64

8

DeltaPatcher.exe

windows10-2004-x64

1

DeltaPatcher.exe

windows11-ltsc_2024-x64

8

README.txt

windows10-2004-x64

1

README.txt

windows11-ltsc_2024-x64

1

UT BR Play...xdelta

windows10-2004-x64

3

UT BR Play...xdelta

windows11-ltsc_2024-x64

3

Analysis

  • user interaction
    yes
  • max time kernel
    131s
  • 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, 02:59

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General

  • Target
    ut_br_play_as_sans.zip
  • Size 3.4MB
  • Sample260709-dg65dab17j
  • SHA256 fd7a05e266825cc2a538adfc1505fab3abe22a211b9eba26678186ec98de58b6
  • 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 38 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:\Windows\Explorer.exe
    C:\Windows\Explorer.exe /idlist,,C:\Users\Admin\AppData\Local\Temp\ut_br_play_as_sans.zip
    1⤵
      PID:5808
    • C:\Windows\system32\sihost.exe
      sihost.exe
      1⤵
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:5484
      • 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:1128
    • 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:5056
    • 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:3548
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k GPSvcGroup
      1⤵
        PID:6072

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            memory/5056-31-0x0000023A03C90000-0x0000023A03CB0000-memory.dmp
            Download

            memory/5056-3-0x0000023A001E0000-0x0000023A002E0000-memory.dmp
            Download

            memory/5056-47-0x0000023A146A0000-0x0000023A146C0000-memory.dmp
            Download

            memory/5056-14-0x0000023A13E70000-0x0000023A13F70000-memory.dmp
            Download

            memory/5056-13-0x0000023A03930000-0x0000023A03950000-memory.dmp
            Download

            memory/5056-2-0x0000023A001E0000-0x0000023A002E0000-memory.dmp
            Download

            memory/5056-1-0x0000023A001E0000-0x0000023A002E0000-memory.dmp
            Download