Analysis
- max time kernel
94s - max time network
150s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260710-en - resource tags
- submitted
17/07/2026, 18:24
General
- Target qrsnutg3m2a7vzc0.exe
- Size 549KB
- Sample260717-w15prsat2q
- SHA256 329eb190ef905eea7bcabf7ed8938b79edf23836bcda41cc30c6ba6872e52038
Malware Config
Signatures
- Modifies WinLogon for persistence 2 TTPs 1 IoCs
- 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.
- Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
- Executes dropped EXE 2 IoCs
- Loads dropped DLL 4 IoCs
- Enumerates connected drives 3 TTPs 2 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
- Looks up external IP address via web service 6 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Costura .NET executable packer 1 IoCs
Costura packer aka Costura Fody, is an add-in for the .NET framework that embeds all external dependency .dll files as resources inside main executable.
- Drops file in Program Files directory 4 IoCs
- Drops file in Windows directory 7 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Executes a command shell one-liner 1 TTPs 6 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
- Checks SCSI registry key(s) 3 TTPs 42 IoCs
SCSI information is often read in order to detect sandboxing environments.
- Delays execution with timeout.exe 2 IoCs
- Kills process with taskkill 1 IoCs
- Modifies Internet Explorer settings 1 TTPs 1 IoCs
- Modifies registry class 15 IoCs
- Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 17 IoCs
- Suspicious use of FindShellTrayWindow 6 IoCs
- Suspicious use of SendNotifyMessage 2 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
- Suspicious use of WriteProcessMemory 16 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\qrsnutg3m2a7vzc0.exe"C:\Users\Admin\AppData\Local\Temp\qrsnutg3m2a7vzc0.exe"1⤵
- Modifies WinLogon for persistence
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\CMD.exe"CMD" netsh advfirewall firewall add rule name="%}gR./N(.g<].G" dir=in action=allow program="C:\Program Files\xdwdSearch.exe" enable=yes & exit2⤵
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C:\Windows\SYSTEM32\cmd.exe"cmd" /c schtasks /create /f /sc minute /mo 1 /tn "ShellHost" /tr "C:\Program Files\xdwdSearch.exe" /RL HIGHEST & exit2⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\schtasks.exeschtasks /create /f /sc minute /mo 1 /tn "ShellHost" /tr "C:\Program Files\xdwdSearch.exe" /RL HIGHEST3⤵
- Scheduled Task/Job: Scheduled Task
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C:\Windows\SYSTEM32\cmd.exe"cmd" /c schtasks /create /f /sc minute /mo 30 /tn "CookieManager" /tr "C:\Windows\xdwdSearcher.exe" /RL HIGHEST & exit2⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\schtasks.exeschtasks /create /f /sc minute /mo 30 /tn "CookieManager" /tr "C:\Windows\xdwdSearcher.exe" /RL HIGHEST3⤵
- Scheduled Task/Job: Scheduled Task
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C:\Program Files\xdwdSearch.exe"C:\Program Files\xdwdSearch.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\CMD.exe"CMD" /c schtasks /deleTe /F /Tn "ShellHost" & exit& exit3⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\schtasks.exeschtasks /deleTe /F /Tn "ShellHost"4⤵
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C:\Windows\SYSTEM32\CMD.exe"CMD" /c schtasks /deleTe /F /Tn "CookieManager" & exit& exit3⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\schtasks.exeschtasks /deleTe /F /Tn "CookieManager"4⤵
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C:\Windows\SYSTEM32\cmd.exe"cmd" /C taskkill /im explorer.exe /f && TimeOut 2 && start explorer.exe3⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\taskkill.exetaskkill /im explorer.exe /f4⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\timeout.exeTimeOut 24⤵
- Delays execution with timeout.exe
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C:\Windows\explorer.exeexplorer.exe4⤵
- 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
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpC8EF.tmp.bat""3⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\timeout.exetimeout 10 "C:\Program Files"DEL "xdwdSearch.exe" /f /qCD "C:\Windows"DEL "xdwdSearcher.exe" /f /qCD "C:\Windows"DEL "xdwd.dll" /f /qCD "C:\Users\Admin\AppData\Local\Temp"DEL "tmpC8EF.tmp.bat" /f /q4⤵
- Delays execution with timeout.exe
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C:\Windows\xdwdSearcher.exeC:\Windows\xdwdSearcher.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
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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⤵
- Suspicious use of SetWindowsHookEx
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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⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
1Windows Command Shell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
2Active Setup
1Winlogon Helper DLL
1Event Triggered Execution
1AppInit DLLs
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
2Active Setup
1Winlogon Helper DLL
1Event Triggered Execution
1AppInit DLLs
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
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Downloads
xdwdSearch.exe
prep_Activatable Class_Hermes_perf.cache
tmpC8EF.tmp.bat
xdwd.dll
memory/3268-120-0x00000299F0020000-0x00000299F055E000-memory.dmp
memory/3268-117-0x00000299D6A10000-0x00000299D6A5C000-memory.dmp
memory/3268-118-0x00000299EF600000-0x00000299EF62A000-memory.dmp
memory/3268-119-0x00000299EF660000-0x00000299EF6AA000-memory.dmp
memory/3268-116-0x00000299EF580000-0x00000299EF5F8000-memory.dmp
memory/3376-144-0x000001DC801E0000-0x000001DC802E0000-memory.dmp
memory/3376-173-0x000001DC83C50000-0x000001DC83C70000-memory.dmp
memory/3376-160-0x000001DC93E50000-0x000001DC93F50000-memory.dmp
memory/3376-192-0x000001DC94670000-0x000001DC94690000-memory.dmp
memory/3376-158-0x000001DC838F0000-0x000001DC83910000-memory.dmp
memory/5396-7-0x00007FFEE2560000-0x00007FFEE2F04000-memory.dmp
memory/5396-1-0x00007FFEE26EF000-0x00007FFEE26F0000-memory.dmp
memory/5396-5-0x00007FFEE2560000-0x00007FFEE2F04000-memory.dmp
memory/5396-4-0x00007FFEE2560000-0x00007FFEE2F04000-memory.dmp
memory/5396-3-0x00007FFEE2560000-0x00007FFEE2F04000-memory.dmp
memory/5396-2-0x00007FFEE2560000-0x00007FFEE2F04000-memory.dmp
memory/5396-0-0x0000023E8F360000-0x0000023E8F3EE000-memory.dmp
memory/5396-6-0x00007FFEE2560000-0x00007FFEE2F04000-memory.dmp
memory/5396-10-0x00007FFEE2560000-0x00007FFEE2F04000-memory.dmp
memory/5396-113-0x00007FFEE2560000-0x00007FFEE2F04000-memory.dmp
memory/5396-8-0x00007FFEE2560000-0x00007FFEE2F04000-memory.dmp
memory/5396-9-0x00007FFEE2560000-0x00007FFEE2F04000-memory.dmp
memory/5988-316-0x000002B346000000-0x000002B346691000-memory.dmp
memory/5988-317-0x000002B409000000-0x000002B4092BC000-memory.dmp