Analysis
- max time kernel
148s - max time network
144s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260618-en - resource tags
- submitted
22/06/2026, 16:52
General
- Target SystemHost.exe
- Size 411KB
- Sample260622-vdcvssev5m
- SHA256 80ada3e183083965f9d3191605c30aeb82fd944d05dbff55502211ecf65b7463
Malware Config
Signatures
- Modifies WinLogon for persistence 2 TTPs 1 IoCs
- Executes dropped EXE 5 IoCs
- Looks up external IP address via web service 8 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Drops file in Windows directory 14 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious use of AdjustPrivilegeToken 7 IoCs
- Suspicious use of WriteProcessMemory 6 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\SystemHost.exe"C:\Users\Admin\AppData\Local\Temp\SystemHost.exe"1⤵
- Modifies WinLogon for persistence
- 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="Uycz,};-,ci1,&" dir=in action=allow program="C:\Windows\SystemHost.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:\Windows\SystemHost.exe" /RL HIGHEST & exit2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\schtasks.exeschtasks /create /f /sc minute /mo 1 /tn "ShellHost" /tr "C:\Windows\SystemHost.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\schost.exe" /RL HIGHEST & exit2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\schtasks.exeschtasks /create /f /sc minute /mo 30 /tn "CookieManager" /tr "C:\Windows\schost.exe" /RL HIGHEST3⤵
- Scheduled Task/Job: Scheduled Task
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C:\Windows\SystemHost.exe"C:\Windows\SystemHost.exe"2⤵
- Executes dropped EXE
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SystemHost.exeC:\Windows\SystemHost.exe1⤵
- Executes dropped EXE
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\schost.exeC:\Windows\schost.exe1⤵
- Executes dropped EXE
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k GPSvcGroup1⤵
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C:\Windows\SystemHost.exe"C:\Windows\SystemHost.exe"1⤵
- Executes dropped EXE
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SystemHost.exe"C:\Windows\SystemHost.exe"1⤵
- Executes dropped EXE
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
SystemHost.exe
memory/2772-0-0x00000173F7960000-0x00000173F79CE000-memory.dmp
memory/2772-1-0x00007FFF7666F000-0x00007FFF76670000-memory.dmp
memory/2772-2-0x00007FFF764E0000-0x00007FFF76E84000-memory.dmp
memory/2772-3-0x00007FFF764E0000-0x00007FFF76E84000-memory.dmp
memory/2772-4-0x00007FFF764E0000-0x00007FFF76E84000-memory.dmp
memory/2772-5-0x00007FFF764E0000-0x00007FFF76E84000-memory.dmp
memory/2772-6-0x00007FFF764E0000-0x00007FFF76E84000-memory.dmp
memory/2772-7-0x00007FFF764E0000-0x00007FFF76E84000-memory.dmp
memory/2772-8-0x00007FFF764E0000-0x00007FFF76E84000-memory.dmp
memory/2772-9-0x00007FFF764E0000-0x00007FFF76E84000-memory.dmp
memory/2772-93-0x00007FFF764E0000-0x00007FFF76E84000-memory.dmp