Analysis
- user interaction
yes - max time kernel
18s - max time network
118s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
20/10/2026, 17:44
General
- Target prank.exe
- Size 740KB
- Sample261020-wbas4avs3m
- SHA256 b3eda00e6d6a68f74d039ebb30b4043cb21e391386b8735a887214e70f24ba15
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.
- Creates a file in the Startup directory 1 TTPs 1 IoCs
A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.
- Executes dropped EXE 2 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- 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 42 IoCs
SCSI information is often read in order to detect sandboxing environments.
- Modifies registry class 14 IoCs
- Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 18 IoCs
- Suspicious use of FindShellTrayWindow 6 IoCs
- Suspicious use of SendNotifyMessage 3 IoCs
- Suspicious use of WriteProcessMemory 2 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.
Processes
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C:\Users\Admin\AppData\Local\Temp\prank.exe"C:\Users\Admin\AppData\Local\Temp\prank.exe"1⤵
- Creates a file in the Startup directory
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\schtasks.exeschtasks /create /tn "WinHelper" /tr "\"C:\Users\Admin\AppData\Local\Microsoft\Windows\Helper\winhelper.exe\"" /sc minute /mo 5 /f2⤵
- Scheduled Task/Job: Scheduled Task
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C:\Users\Admin\AppData\Local\Microsoft\Windows\Helper\winhelper.exeC:\Users\Admin\AppData\Local\Microsoft\Windows\Helper\winhelper.exe1⤵
- Executes dropped EXE
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C:\Users\Admin\AppData\Local\Microsoft\Windows\Helper\winhelper.exe"C:\Users\Admin\AppData\Local\Microsoft\Windows\Helper\winhelper.exe"1⤵
- Executes dropped EXE
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C:\Windows\system32\werfault.exewerfault.exe /h /shared Global\cd752b481aee41a1ab4e6022158afda6 /t 2156 /p 21001⤵
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C:\Windows\system32\userinit.exeC:\Windows\system32\userinit.exe1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE2⤵
- Boot or Logon Autostart Execution: Active Setup
- Enumerates connected drives
- Checks SCSI registry key(s)
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
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C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca1⤵
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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⤵
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C:\Windows\system32\werfault.exewerfault.exe /h /shared Global\395df5ed70e243ee877de297b8d8c303 /t 6048 /p 16001⤵
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C:\Windows\system32\userinit.exeC:\Windows\system32\userinit.exe1⤵
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE2⤵
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C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca1⤵
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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⤵
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C:\Windows\system32\werfault.exewerfault.exe /h /shared Global\3f187cd5cf194de491ad9abfbbf41bb4 /t 4436 /p 49881⤵
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C:\Windows\system32\userinit.exeC:\Windows\system32\userinit.exe1⤵
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE2⤵
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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⤵
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C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca1⤵
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C:\Windows\system32\werfault.exewerfault.exe /h /shared Global\6b805ba58a854e29be721cd418ecfd04 /t 6812 /p 68081⤵
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C:\Windows\system32\userinit.exeC:\Windows\system32\userinit.exe1⤵
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE2⤵
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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⤵
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C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca1⤵
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C:\Windows\system32\werfault.exewerfault.exe /h /shared Global\d011793083234d0881126b6d4b45bc13 /t 6424 /p 64401⤵
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C:\Windows\system32\userinit.exeC:\Windows\system32\userinit.exe1⤵
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE2⤵
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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⤵
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C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca1⤵
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C:\Windows\system32\werfault.exewerfault.exe /h /shared Global\cad604aa2040439e8c6691a519b46be3 /t 6616 /p 66441⤵
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C:\Windows\system32\userinit.exeC:\Windows\system32\userinit.exe1⤵
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE2⤵
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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⤵
Network
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
3Active Setup
1Registry Run Keys / Startup Folder
2Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
3Active Setup
1Registry Run Keys / Startup Folder
2Scheduled Task/Job
1Scheduled Task
1Replay Monitor
Loading Replay Monitor...
Downloads
winhelper.exe
start2.bin
prep_Activatable Class_Hermes_perf.cache
prep_Activatable Class_Hermes_perf.cache
prep_Activatable Class_Hermes_perf.cache
prep_Activatable Class_Hermes_perf.cache
prep_Activatable Class_Hermes_perf.cache
microsoftwindows.client[1].xml
microsoftwindows.client[1].xml
memory/956-3-0x00007FF671A70000-0x00007FF671ACA000-memory.dmp
memory/1600-178-0x000000000E550000-0x000000000EDCB000-memory.dmp
memory/4144-1124-0x00007FF604F20000-0x00007FF604F7A000-memory.dmp
memory/4144-364-0x00007FF604F20000-0x00007FF604F7A000-memory.dmp
memory/4144-188-0x00007FF604F20000-0x00007FF604F7A000-memory.dmp
memory/4144-943-0x00007FF604F20000-0x00007FF604F7A000-memory.dmp
memory/4144-945-0x00007FF604F20000-0x00007FF604F7A000-memory.dmp
memory/4144-25-0x00007FF604F20000-0x00007FF604F7A000-memory.dmp
memory/4144-1127-0x00007FF604F20000-0x00007FF604F7A000-memory.dmp
memory/4144-179-0x00007FF604F20000-0x00007FF604F7A000-memory.dmp
memory/4144-4-0x00007FF604F20000-0x00007FF604F7A000-memory.dmp
memory/4144-1292-0x00007FF604F20000-0x00007FF604F7A000-memory.dmp
memory/4144-768-0x00007FF604F20000-0x00007FF604F7A000-memory.dmp
memory/4144-1095-0x00007FF604F20000-0x00007FF604F7A000-memory.dmp
memory/4212-56-0x000001CE01A80000-0x000001CE01AA0000-memory.dmp
memory/4212-27-0x000001CE001E0000-0x000001CE002E0000-memory.dmp
memory/4212-72-0x000001CE046E0000-0x000001CE04700000-memory.dmp
memory/4212-58-0x000001CE01CC0000-0x000001CE01CE0000-memory.dmp
memory/4212-57-0x000001CE01EA0000-0x000001CE01FA0000-memory.dmp
memory/4852-949-0x00000136001E0000-0x00000136002E0000-memory.dmp
memory/4852-955-0x0000013604000000-0x0000013604100000-memory.dmp
memory/4852-981-0x0000013601DC0000-0x0000013601DE0000-memory.dmp
memory/4852-995-0x00000136143C0000-0x00000136143E0000-memory.dmp
memory/4852-950-0x00000136001E0000-0x00000136002E0000-memory.dmp
memory/4852-954-0x0000013601A80000-0x0000013601AA0000-memory.dmp
memory/4852-948-0x00000136001E0000-0x00000136002E0000-memory.dmp
memory/4944-2-0x00007FF671A70000-0x00007FF671ACA000-memory.dmp
memory/4988-341-0x000000000EC50000-0x000000000F4CB000-memory.dmp
memory/4988-767-0x000000000EC50000-0x000000000F4CB000-memory.dmp
memory/5124-1123-0x000001C3D99C0000-0x000001C3D9DF4000-memory.dmp
memory/5500-475-0x0000013509F60000-0x000001350A060000-memory.dmp
memory/5500-258-0x00000135043E0000-0x0000013504400000-memory.dmp
memory/5500-237-0x0000013501A20000-0x0000013501A40000-memory.dmp
memory/5500-244-0x0000013501DE0000-0x0000013501E00000-memory.dmp
memory/5500-243-0x0000013501E20000-0x0000013501F20000-memory.dmp
memory/5500-213-0x00000135001E0000-0x00000135002E0000-memory.dmp
memory/6644-1289-0x000000000E960000-0x000000000F1DB000-memory.dmp
memory/6808-942-0x000000000FF40000-0x00000000107BB000-memory.dmp
memory/6876-1129-0x0000019A001E0000-0x0000019A002E0000-memory.dmp
memory/6876-1175-0x0000019A04280000-0x0000019A042A0000-memory.dmp
memory/6876-1159-0x0000019A01C10000-0x0000019A01C30000-memory.dmp
memory/6876-1161-0x0000019A01DB0000-0x0000019A01DD0000-memory.dmp
memory/6876-1160-0x0000019A01DF0000-0x0000019A01EF0000-memory.dmp
memory/7140-801-0x000002B606570000-0x000002B606590000-memory.dmp
memory/7140-770-0x000002B602D30000-0x000002B602E30000-memory.dmp
memory/7140-803-0x000002B6068F0000-0x000002B606910000-memory.dmp
memory/7140-802-0x000002B606970000-0x000002B606A70000-memory.dmp
memory/7140-817-0x000002B616D10000-0x000002B616D30000-memory.dmp