Analysis
- max time kernel
149s - max time network
152s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
08/08/2026, 23:18
General
- Target 8def226d755c749a9f6f8c8cbf50f7b4655e66848ee75f000ce9e47492f4d4f1.exe
- Size 6.0MB
- Sample260808-3ab34aen3v
- SHA256 8def226d755c749a9f6f8c8cbf50f7b4655e66848ee75f000ce9e47492f4d4f1
Malware Config
Extracted
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xworm
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5.0
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hxtes3a-40114.portmap.host:40114
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CrirQpGRl8Am1h1Z
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Install_directory
%Userprofile%
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install_file
Realtek HD Audio Universal Service.exe
Signatures
- Family: Xworm
Xworm is a remote access trojan written in C#.
- Detect Xworm Payload 2 IoCs
- Downloads MZ/PE file 1 IoCs
- Checks BIOS information in registry 2 TTPs 1 IoCs
BIOS information is often read in order to detect sandboxing environments.
- Creates new service(s) 2 TTPs
- Executes dropped EXE 6 IoCs
- Loads dropped DLL 1 IoCs
- Stops running service(s) 4 TTPs
- Adds Run key to start application 2 TTPs 2 IoCs
- Contacts third-party web service commonly abused for C2 1 TTPs 4 IoCs
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
- Looks up external IP address via web service 1 TTPs 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 2 IoCs
- UPX packed file 3 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Launches sc.exe 4 IoCs
Sc.exe is a Windows utlilty to control services on the system.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Enumerates system info in registry 2 TTPs 4 IoCs
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 15 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\8def226d755c749a9f6f8c8cbf50f7b4655e66848ee75f000ce9e47492f4d4f1.exe"C:\Users\Admin\AppData\Local\Temp\8def226d755c749a9f6f8c8cbf50f7b4655e66848ee75f000ce9e47492f4d4f1.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Bluestacks.exe"C:\Users\Admin\AppData\Local\Temp\Bluestacks.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
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C:\Users\Admin\AppData\Local\Temp\Realtek HD Audio Universal Service.exe"C:\Users\Admin\AppData\Local\Temp\Realtek HD Audio Universal Service.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\abuser.exe"C:\Users\Admin\AppData\Local\Temp\abuser.exe"2⤵
- Executes dropped EXE
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C:\Windows\system32\sc.exeC:\Windows\system32\sc.exe delete "Music"3⤵
- Launches sc.exe
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C:\Windows\system32\sc.exeC:\Windows\system32\sc.exe create "Music" binpath= "C:\ProgramData\Music\Music Player.exe" start= "auto"3⤵
- Launches sc.exe
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C:\Windows\system32\sc.exeC:\Windows\system32\sc.exe stop eventlog3⤵
- Launches sc.exe
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C:\Windows\system32\sc.exeC:\Windows\system32\sc.exe start "Music"3⤵
- Launches sc.exe
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C:\Users\Admin\AppData\Local\Temp\HDN UID BYPASS V9.6.exe"C:\Users\Admin\AppData\Local\Temp\HDN UID BYPASS V9.6.exe"2⤵
- Downloads MZ/PE file
- Checks BIOS information in registry
- Executes dropped EXE
- Loads dropped DLL
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\Bluestacks.exeC:\Users\Admin\AppData\Local\Temp\Bluestacks.exe1⤵
- Executes dropped EXE
- Adds Run key to start application
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C:\ProgramData\Music\Music Player.exe"C:\ProgramData\Music\Music Player.exe"1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\conhost.exeC:\Windows\system32\conhost.exe2⤵
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C:\Windows\explorer.exeexplorer.exe2⤵
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Network
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
2Windows Service
2Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
2Windows Service
2Replay Monitor
Loading Replay Monitor...
Downloads
Bluestacks.exe
HDN UID BYPASS V9.6.exe
Realtek HD Audio Universal Service.exe
abuser.exe
UIDBypassDll.dll
memory/1108-25-0x0000000000400000-0x0000000000410000-memory.dmp
memory/1108-44-0x00007FFB0B960000-0x00007FFB0C304000-memory.dmp
memory/1108-26-0x00007FFB0B960000-0x00007FFB0C304000-memory.dmp
memory/1108-40-0x00007FFB0B960000-0x00007FFB0C304000-memory.dmp
memory/1108-42-0x00007FFB0B960000-0x00007FFB0C304000-memory.dmp
memory/2484-4-0x00007FFB0B960000-0x00007FFB0C304000-memory.dmp
memory/2484-2-0x00007FFB0B960000-0x00007FFB0C304000-memory.dmp
memory/2484-1-0x0000000000DB0000-0x00000000013C0000-memory.dmp
memory/2484-41-0x00007FFB0B960000-0x00007FFB0C304000-memory.dmp
memory/2484-0-0x00007FFB0BAEF000-0x00007FFB0BAF0000-memory.dmp
memory/2652-43-0x000001C6EAB60000-0x000001C6EAB76000-memory.dmp
memory/2652-39-0x000001C6E8030000-0x000001C6E83C8000-memory.dmp
memory/2652-49-0x000001C6EA170000-0x000001C6EA182000-memory.dmp
memory/2652-50-0x000001C6F6E60000-0x000001C6F707C000-memory.dmp
memory/2652-51-0x000001C6ED8C0000-0x000001C6ED8FC000-memory.dmp
memory/3908-62-0x0000000140000000-0x00000001408CB000-memory.dmp
memory/3908-64-0x0000000140000000-0x00000001408CB000-memory.dmp
memory/3908-63-0x0000000140000000-0x00000001408CB000-memory.dmp
memory/4772-57-0x0000000140000000-0x0000000140013000-memory.dmp
memory/4772-59-0x0000000140000000-0x0000000140013000-memory.dmp
memory/4772-58-0x0000000140000000-0x0000000140013000-memory.dmp
memory/4772-56-0x0000000140000000-0x0000000140013000-memory.dmp
memory/4772-55-0x0000000140000000-0x0000000140013000-memory.dmp