Analysis
- user interaction
yes - max time kernel
51s - max time network
129s - platform
windows10-2004_x64 - resource
win10v2004-20260911-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 36 IoCs
SCSI information is often read in order to detect sandboxing environments.
- Modifies registry class 10 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 use of AdjustPrivilegeToken 16 IoCs
- Suspicious use of FindShellTrayWindow 18 IoCs
- Suspicious use of SendNotifyMessage 16 IoCs
- Suspicious use of SetWindowsHookEx 2 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.
Processes
-
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.exe"C:\Users\Admin\AppData\Local\Microsoft\Windows\Helper\winhelper.exe"1⤵
- Executes dropped EXE
-
C:\Users\Admin\AppData\Local\Microsoft\Windows\Helper\winhelper.exeC:\Users\Admin\AppData\Local\Microsoft\Windows\Helper\winhelper.exe1⤵
- Executes dropped EXE
-
C:\Windows\system32\werfault.exewerfault.exe /h /shared Global\e88dab74080f4798a15c17944a897e7c /t 3268 /p 32641⤵
-
C:\Windows\explorer.exeexplorer.exe1⤵
- Boot or Logon Autostart Execution: Active Setup
- Enumerates connected drives
- Checks SCSI registry key(s)
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
-
C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
-
C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe"C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca1⤵
-
C:\Windows\system32\werfault.exewerfault.exe /h /shared Global\2340c920d6e24070a8de98abed15194c /t 4740 /p 24681⤵
-
C:\Windows\explorer.exeexplorer.exe1⤵
-
C:\Windows\system32\taskmgr.exe"C:\Windows\system32\taskmgr.exe" /42⤵
-
-
C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca1⤵
-
C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe"C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca1⤵
-
C:\Windows\system32\werfault.exewerfault.exe /h /shared Global\1c051808e1694cd4875fb4890c9a89a5 /t 5040 /p 44641⤵
-
C:\Windows\System32\DataExchangeHost.exeC:\Windows\System32\DataExchangeHost.exe -Embedding1⤵
-
C:\Windows\explorer.exeexplorer.exe1⤵
-
C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca1⤵
-
C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe"C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.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
B76BE66D46C355931939D8CF818D03FD_68DC46933CF3DE41CC968E0784D43DC3
E2C6CBAF0AF08CF203BA74BF0D0AB6D5_EAF5D55D93603A879FA973006301F24F
B76BE66D46C355931939D8CF818D03FD_68DC46933CF3DE41CC968E0784D43DC3
E2C6CBAF0AF08CF203BA74BF0D0AB6D5_EAF5D55D93603A879FA973006301F24F
fbaf94e759052658216786bfbabcdced1b67a5c2.tbres
microsoft.windows[1].xml
WinHelper.exe
memory/716-191-0x000002DD08FF0000-0x000002DD09010000-memory.dmp
memory/716-193-0x000002DD08FB0000-0x000002DD08FD0000-memory.dmp
memory/716-194-0x000002DD093C0000-0x000002DD093E0000-memory.dmp
memory/716-186-0x000002DD07F00000-0x000002DD08000000-memory.dmp
memory/1436-351-0x00000000046E0000-0x00000000046E1000-memory.dmp
memory/2468-22-0x0000000004A70000-0x0000000004A71000-memory.dmp
memory/2640-341-0x000002340A1D0000-0x000002340A1D1000-memory.dmp
memory/2640-345-0x000002340A1D0000-0x000002340A1D1000-memory.dmp
memory/2640-335-0x000002340A1D0000-0x000002340A1D1000-memory.dmp
memory/2640-334-0x000002340A1D0000-0x000002340A1D1000-memory.dmp
memory/2640-346-0x000002340A1D0000-0x000002340A1D1000-memory.dmp
memory/2640-336-0x000002340A1D0000-0x000002340A1D1000-memory.dmp
memory/2640-340-0x000002340A1D0000-0x000002340A1D1000-memory.dmp
memory/2640-342-0x000002340A1D0000-0x000002340A1D1000-memory.dmp
memory/2640-343-0x000002340A1D0000-0x000002340A1D1000-memory.dmp
memory/2640-344-0x000002340A1D0000-0x000002340A1D1000-memory.dmp
memory/2688-358-0x000002A1C45A0000-0x000002A1C45C0000-memory.dmp
memory/2688-353-0x000002A1C3440000-0x000002A1C3540000-memory.dmp
memory/2688-385-0x000002A1C4560000-0x000002A1C4580000-memory.dmp
memory/2688-386-0x000002A1C4980000-0x000002A1C49A0000-memory.dmp
memory/2884-21-0x00007FF69B120000-0x00007FF69B17A000-memory.dmp
memory/2884-347-0x00007FF69B120000-0x00007FF69B17A000-memory.dmp
memory/2884-291-0x00007FF69B120000-0x00007FF69B17A000-memory.dmp
memory/2884-11-0x00007FF69B120000-0x00007FF69B17A000-memory.dmp
memory/2884-12-0x00007FF69B120000-0x00007FF69B17A000-memory.dmp
memory/2884-13-0x00007FF69B120000-0x00007FF69B17A000-memory.dmp
memory/2884-177-0x00007FF69B120000-0x00007FF69B17A000-memory.dmp
memory/2884-497-0x00007FF69B120000-0x00007FF69B17A000-memory.dmp
memory/2884-488-0x00007FF69B120000-0x00007FF69B17A000-memory.dmp
memory/2884-159-0x00007FF69B120000-0x00007FF69B17A000-memory.dmp
memory/2884-183-0x00007FF69B120000-0x00007FF69B17A000-memory.dmp
memory/2884-10-0x00007FF69B120000-0x00007FF69B17A000-memory.dmp
memory/2884-348-0x00007FF69B120000-0x00007FF69B17A000-memory.dmp
memory/2884-349-0x00007FF69B120000-0x00007FF69B17A000-memory.dmp
memory/3448-24-0x000002096EB60000-0x000002096EC60000-memory.dmp
memory/3448-60-0x000002096FFD0000-0x000002096FFF0000-memory.dmp
memory/3448-59-0x000002096FB40000-0x000002096FB60000-memory.dmp
memory/3448-29-0x000002096FB80000-0x000002096FBA0000-memory.dmp
memory/4152-7-0x00007FF6F1C60000-0x00007FF6F1CBA000-memory.dmp
memory/4464-184-0x0000000004FA0000-0x0000000004FA1000-memory.dmp
memory/4636-9-0x00007FF6F1C60000-0x00007FF6F1CBA000-memory.dmp