Analysis
- user interaction
yes - max time kernel
50s - max time network
73s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260630-en - resource tags
- submitted
02/07/2026, 13:27
General
- Target MTX-Bloxstrap-Installer-2.9.0.exe
- Size 11.9MB
- Sample260702-qqe4gact6q
- SHA256 154c73db6962a6a9f6eddde50729880d1a01e86df89871ab96f90609567e6281
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.
- Executes dropped EXE 1 IoCs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Enumerates connected drives 3 TTPs 2 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
- Modifies Internet Explorer settings 1 TTPs 1 IoCs
- Modifies registry class 32 IoCs
- Suspicious behavior: EnumeratesProcesses 1 IoCs
- Suspicious use of AdjustPrivilegeToken 10 IoCs
- Suspicious use of FindShellTrayWindow 4 IoCs
- Suspicious use of SendNotifyMessage 1 IoCs
- Suspicious use of WriteProcessMemory 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\MTX-Bloxstrap-Installer-2.9.0.exe"C:\Users\Admin\AppData\Local\Temp\MTX-Bloxstrap-Installer-2.9.0.exe"1⤵
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
C:\Users\Admin\AppData\Local\Bloxstrap\Bloxstrap.exe"C:\Users\Admin\AppData\Local\Bloxstrap\Bloxstrap.exe"1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\system32\sihost.exesihost.exe1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Windows\explorer.exeexplorer.exe /LOADSAVEDWINDOWS2⤵
- Boot or Logon Autostart Execution: Active Setup
- Enumerates connected drives
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
-
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C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe"C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca1⤵
-
C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca1⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
Bloxstrap.exe
ClientAppSettings.json
Settings.json
State.json
prep_Activatable Class_Hermes_perf.cache
prep_Activatable Class_Hermes_perf.cache
Bloxstrap.lnk
memory/2852-75-0x0000016A94100000-0x0000016A94120000-memory.dmp
memory/2852-41-0x0000016A81920000-0x0000016A81940000-memory.dmp
memory/2852-22-0x0000016A801E0000-0x0000016A802E0000-memory.dmp
memory/2852-42-0x0000016A81D80000-0x0000016A81E80000-memory.dmp
memory/2852-54-0x0000016A81B80000-0x0000016A81BA0000-memory.dmp
memory/3220-202-0x00000183EA000000-0x00000183EA691000-memory.dmp