Analysis
- max time kernel
38s - max time network
47s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
02/10/2026, 20:38
General
- Target 80157990c0b439bfb966edb608065d6bb488bd00d7616966eeb956c8340d57c3.js
- Size 206KB
- Sample261002-zexntasbnd
- SHA256 80157990c0b439bfb966edb608065d6bb488bd00d7616966eeb956c8340d57c3
Malware Config
Extracted
-
xworm
-
5.0
-
ebuxsfresh.duckdns.org:2557
-
PjxH5qwxVcgBqOfa
-
install_file
USB.exe
Signatures
- Family: Xworm
Xworm is a remote access trojan written in C#.
- Detect Xworm Payload 1 IoCs
- Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
- Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell and hide display window.
- Enumerates connected drives 3 TTPs 1 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates video capture drivers 2 TTPs 1 IoCs
Queries the legacy Video for Windows capture drivers. This is commonly abused by RATs to check for available webcams on the system before reporting to their C2.
- Command and Scripting Interpreter: JavaScript 1 TTPs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Reads the TCP/IP host and domain name from the registry 1 TTPs 4 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
- System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- 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 2 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 8 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:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\80157990c0b439bfb966edb608065d6bb488bd00d7616966eeb956c8340d57c3.js1⤵
- Reads the TCP/IP host and domain name from the registry
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\schtasks.exe"C:\Windows\System32\schtasks.exe" /create /tn "SchemaStore59" /xml "C:\Users\Admin\AppData\Local\Temp\7086122.xml" /f2⤵
- Scheduled Task/Job: Scheduled Task
-
-
C:\Windows\system32\wscript.exewscript.exe1⤵
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exeC:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe -NoPr -NonI -WindowStyle Hidden -C "[scriptblock]::Create([IO.File]::ReadAllText('C:\Users\Admin\AppData\Roaming\Microsoft\Windows\c707afd3.ps1')).Invoke()"1⤵
- Process spawned unexpected child process
- Command and Scripting Interpreter: PowerShell
- Enumerates connected drives
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\l0kgvzzk\l0kgvzzk.cmdline"2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES7517.tmp" "c:\Users\Admin\AppData\Local\Temp\l0kgvzzk\CSC7BB6461D29784F69A8CC761363F22D0.TMP"3⤵
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-
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"2⤵
- Enumerates video capture drivers
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
2JavaScript
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
Loading Replay Monitor...
Downloads
7086122.xml
RES7517.tmp
l0kgvzzk.dll
c707afd3.ps1
CSC7BB6461D29784F69A8CC761363F22D0.TMP
l0kgvzzk.0.cs
l0kgvzzk.cmdline
memory/3720-18-0x0000000006E80000-0x0000000006E9A000-memory.dmp
memory/3720-4-0x00000000053D0000-0x0000000005406000-memory.dmp
memory/3720-13-0x0000000006380000-0x00000000066DB000-memory.dmp
memory/3720-14-0x0000000006800000-0x000000000681E000-memory.dmp
memory/3720-15-0x00000000068E0000-0x000000000692C000-memory.dmp
memory/3720-10-0x0000000006250000-0x00000000062B6000-memory.dmp
memory/3720-17-0x00000000080F0000-0x000000000876C000-memory.dmp
memory/3720-8-0x0000000005AC0000-0x0000000005AE2000-memory.dmp
memory/3720-7-0x0000000074C90000-0x000000007544C000-memory.dmp
memory/3720-5-0x0000000074C90000-0x000000007544C000-memory.dmp
memory/3720-6-0x0000000005B20000-0x000000000616A000-memory.dmp
memory/3720-9-0x00000000061E0000-0x0000000006246000-memory.dmp
memory/3720-31-0x0000000006EA0000-0x0000000006EAA000-memory.dmp
memory/3720-3-0x0000000074CA2000-0x0000000074CA3000-memory.dmp
memory/3720-38-0x0000000074C90000-0x000000007544C000-memory.dmp
memory/3720-33-0x0000000007B90000-0x0000000007C26000-memory.dmp
memory/3720-34-0x0000000007AF0000-0x0000000007B12000-memory.dmp
memory/3720-36-0x0000000008D30000-0x00000000092EA000-memory.dmp
memory/5160-35-0x0000000005860000-0x00000000058FC000-memory.dmp
memory/5160-32-0x0000000000400000-0x000000000040E000-memory.dmp
memory/5160-39-0x0000000007390000-0x0000000007422000-memory.dmp