Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
- submitted
11/03/2026, 03:41
General
- Target XWormClient.exe
- Size 36KB
- Sample260311-d9axmsdv6y
- SHA256 9e137d037ccb6f09f4a7c408b62934e4ac0c9ae38413a911853a793077fc6e7e
Malware Config
Extracted
-
xworm
-
5.0
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mu19rs2vmk.localto.net:1314
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7qUxTqahutLyDxxh
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Install_directory
%AppData%
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install_file
RuntimeBroker.exe
Signatures
- Detect Xworm Payload 2 IoCs
- Xworm
Xworm is a remote access trojan written in C#.
- Xworm family
- Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Drops startup file 2 IoCs
- Executes dropped EXE 3 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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 8 IoCs
- Suspicious use of AdjustPrivilegeToken 9 IoCs
- Suspicious use of WriteProcessMemory 5 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\XWormClient.exe"C:\Users\Admin\AppData\Local\Temp\XWormClient.exe"1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\XWormClient.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XWormClient.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\RuntimeBroker.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'RuntimeBroker.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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C:\Windows\System32\schtasks.exe"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "RuntimeBroker" /tr "C:\Users\Admin\AppData\Roaming\RuntimeBroker.exe"2⤵
- Scheduled Task/Job: Scheduled Task
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C:\Users\Admin\AppData\Roaming\RuntimeBroker.exeC:\Users\Admin\AppData\Roaming\RuntimeBroker.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Roaming\RuntimeBroker.exeC:\Users\Admin\AppData\Roaming\RuntimeBroker.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Roaming\RuntimeBroker.exeC:\Users\Admin\AppData\Roaming\RuntimeBroker.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
Loading Replay Monitor...
Downloads
RuntimeBroker.exe.log
powershell.exe.log
StartupProfileData-NonInteractive
StartupProfileData-NonInteractive
StartupProfileData-NonInteractive
__PSScriptPolicyTest_zjhwskbp.k3z.ps1
RuntimeBroker.exe
memory/1544-85-0x0000000001980000-0x000000000198C000-memory.dmp
memory/1924-36-0x0000018F077E0000-0x0000018F077EC000-memory.dmp
memory/1924-37-0x0000018F1FF20000-0x0000018F2065F000-memory.dmp
memory/2596-48-0x000002B07D9D0000-0x000002B07E10F000-memory.dmp
memory/2596-47-0x000002B07BBB0000-0x000002B07BBBC000-memory.dmp
memory/4268-53-0x000000001B710000-0x000000001B720000-memory.dmp
memory/4268-0-0x0000000000BA0000-0x0000000000BB0000-memory.dmp
memory/4268-58-0x0000000002D10000-0x0000000002D1C000-memory.dmp
memory/4268-59-0x000000001B720000-0x000000001BE5F000-memory.dmp
memory/5088-26-0x0000018D6BB60000-0x0000018D6C29F000-memory.dmp
memory/5088-25-0x0000018D6B4B0000-0x0000018D6B4BC000-memory.dmp
memory/5416-57-0x000000001B930000-0x000000001B93C000-memory.dmp
memory/5496-13-0x00000156000D0000-0x00000156000DC000-memory.dmp
memory/5496-14-0x00000156187F0000-0x0000015618F2F000-memory.dmp
memory/5496-8-0x000001567E410000-0x000001567E432000-memory.dmp
memory/5496-1-0x00000156187E0000-0x00000156187F0000-memory.dmp
memory/5496-2-0x00000156187E0000-0x00000156187F0000-memory.dmp
memory/5764-71-0x000000001B5C0000-0x000000001B5CC000-memory.dmp