Analysis
- max time kernel
150s - max time network
144s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
09/07/2026, 08:28
General
- Target Siparişi - 75158991-803.vbs
- Size 1.1MB
- Sample260709-kdbbvsfz71
- SHA256 dbd43f8a5c6e6ca22a96be3a15f36ef28e7ca0260cabdd3a3212ebfaa8610dc2
Malware Config
Extracted
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xworm
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5.0
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155.103.69.160:2839
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RJc6ZIx2JvyyOQ2Z
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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.
- Badlisted process makes network request 1 IoCs
Network request originating from process or tool commonly abused by malware.
- Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Run Powershell and hide display window.
- System Binary Proxy Execution: Regsvcs/Regasm 1 TTPs 3 IoCs
Abuse Regasm to proxy execution of malicious code.
- 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 1 IoCs
- Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
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C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\Siparişi - 75158991-803.vbs"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -nop -w hidden -c Copy-Item -LiteralPath 'C:\Users\Admin\AppData\Local\Temp\Siparişi - 75158991-803.vbs' -Destination 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Siparişi - 75158991-803.vbs' -Force2⤵
- Command and Scripting Interpreter: PowerShell
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell.exe -NoProfile -Command "Invoke-Expression $env:bobos"1⤵
- Process spawned unexpected child process
- Badlisted process makes network request
- Command and Scripting Interpreter: PowerShell
- System Binary Proxy Execution: Regsvcs/Regasm
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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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⤵
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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⤵
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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⤵
- System Binary Proxy Execution: Regsvcs/Regasm
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /target:exe /out:"C:\Users\Admin\AppData\Local\Temp\RegAsm.exe" "C:\Users\Admin\AppData\Local\Temp\guardian_src_908de0c6c8704d8ab3fcbfd19582cdc5.cs"3⤵
- System Binary Proxy Execution: Regsvcs/Regasm
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exeC:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RESAD04.tmp" "c:\Users\Admin\AppData\Local\Temp\CSC437805A453140E381124A938B1DFF8A.TMP"4⤵
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C:\Users\Admin\AppData\Local\Temp\RegAsm.exe"C:\Users\Admin\AppData\Local\Temp\RegAsm.exe" 60803⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
powershell.exe.log
StartupProfileData-NonInteractive
RESAD04.tmp
RegAsm.exe
__PSScriptPolicyTest_kjdxhyx5.0wm.ps1
CSC437805A453140E381124A938B1DFF8A.TMP
guardian_src_908de0c6c8704d8ab3fcbfd19582cdc5.cs
memory/864-1-0x000001A01C030000-0x000001A01C040000-memory.dmp
memory/864-7-0x000001A0363C0000-0x000001A0363E2000-memory.dmp
memory/864-0-0x000001A01C030000-0x000001A01C040000-memory.dmp
memory/2192-44-0x0000000000850000-0x0000000000858000-memory.dmp
memory/5848-21-0x000001BDED0A0000-0x000001BDED154000-memory.dmp
memory/5848-22-0x000001BDEA9B0000-0x000001BDEA9BA000-memory.dmp
memory/6080-29-0x0000000006C90000-0x0000000007234000-memory.dmp
memory/6080-30-0x00000000066E0000-0x000000000675C000-memory.dmp
memory/6080-31-0x0000000006760000-0x0000000006794000-memory.dmp
memory/6080-28-0x0000000006640000-0x00000000066D2000-memory.dmp
memory/6080-32-0x0000000006790000-0x0000000006796000-memory.dmp
memory/6080-27-0x0000000005C50000-0x0000000005CB6000-memory.dmp
memory/6080-26-0x00000000055C0000-0x000000000565C000-memory.dmp
memory/6080-23-0x0000000000400000-0x000000000040E000-memory.dmp