Analysis
- max time kernel
300s - max time network
293s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
- submitted
08/05/2026, 02:56
General
- Target WhatsApp IMG 07-05-26 Payment advice.vbs
- Size 2.7MB
- Sample260508-dfhemaf19q
- SHA256 51cf4209be2c160f3182f2488e68eec40edd7e9f9f76224fa4b66d4ec74a35bd
Malware Config
Extracted
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xworm
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5.0
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103.83.86.92:3333
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UDWJhb0nWsfp7CKC
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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.
- Executes dropped EXE 1 IoCs
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- 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 SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
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C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\WhatsApp IMG 07-05-26 Payment advice.vbs"1⤵
- 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\WhatsApp IMG 07-05-26 Payment advice.vbs' -Destination 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\WhatsApp IMG 07-05-26 Payment advice.vbs' -Force2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell.exe -ExecutionPolicy Bypass -NoProfile -WindowStyle Hidden -Command "IEX $env:INTERNAL_DB_CACHE;[Environment]::SetEnvironmentVariable('INTERNAL_DB_CACHE',$null,'User')"1⤵
- Process spawned unexpected child process
- Badlisted process makes network request
- Command and Scripting Interpreter: PowerShell
- 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\Caspol.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe"2⤵
- Accesses Microsoft Outlook profiles
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
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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\CasPol.exe" "C:\Users\Admin\AppData\Local\Temp\guardian_src_df8bd599f6e446109c3c3a446de863e6.cs"3⤵
- 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\RESEC7E.tmp" "c:\Users\Admin\AppData\Local\Temp\CSC29CC7102682E419F8D5E8DD298948F1F.TMP"4⤵
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C:\Users\Admin\AppData\Local\Temp\CasPol.exe"C:\Users\Admin\AppData\Local\Temp\CasPol.exe" 48963⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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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\CasPol.exe" "C:\Users\Admin\AppData\Local\Temp\guardian_src_d6c4e85aad444bbf88cc7301600e3e19.cs"3⤵
- 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\RESFBFF.tmp" "c:\Users\Admin\AppData\Local\Temp\CSC2088E3C99A054440A2326AB424C72CAE.TMP"4⤵
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
powershell.exe.log
StartupProfileData-NonInteractive
CasPol.exe
RESEC7E.tmp
RESFBFF.tmp
__PSScriptPolicyTest_dydjolka.nyh.ps1
CSC29CC7102682E419F8D5E8DD298948F1F.TMP
guardian_src_df8bd599f6e446109c3c3a446de863e6.cs
memory/1824-19-0x0000018A97280000-0x0000018A97292000-memory.dmp
memory/1824-0-0x0000018AAF870000-0x0000018AAF880000-memory.dmp
memory/1824-9-0x0000018AAF870000-0x0000018AAF880000-memory.dmp
memory/1824-7-0x0000018AAF920000-0x0000018AAF942000-memory.dmp
memory/1824-1-0x0000018AAF870000-0x0000018AAF880000-memory.dmp
memory/2132-56-0x0000000000260000-0x0000000000268000-memory.dmp
memory/2132-69-0x000000001B060000-0x000000001B1FA000-memory.dmp
memory/2292-26-0x00000207805C0000-0x00000207805C9000-memory.dmp
memory/2292-20-0x00000207807A0000-0x00000207808AC000-memory.dmp
memory/2292-25-0x00000207FFF60000-0x00000207FFF72000-memory.dmp
memory/3388-10-0x000002079C1C0000-0x000002079C35A000-memory.dmp
memory/4896-37-0x0000000006000000-0x0000000006064000-memory.dmp
memory/4896-31-0x0000000006780000-0x00000000067E6000-memory.dmp
memory/4896-28-0x0000000006070000-0x0000000006616000-memory.dmp
memory/4896-39-0x0000000006000000-0x0000000006064000-memory.dmp
memory/4896-42-0x00000000071E0000-0x0000000007214000-memory.dmp
memory/4896-43-0x0000000007220000-0x0000000007226000-memory.dmp
memory/4896-45-0x000000000FE70000-0x0000000010CAC000-memory.dmp
memory/4896-27-0x00000000056C0000-0x000000000575C000-memory.dmp
memory/4896-33-0x0000000006000000-0x0000000006064000-memory.dmp
memory/4896-32-0x00000000015F0000-0x000000000179C000-memory.dmp
memory/4896-21-0x0000000000400000-0x0000000000410000-memory.dmp
memory/4896-35-0x0000000006000000-0x0000000006064000-memory.dmp
memory/4896-57-0x00000000070E0000-0x000000000715C000-memory.dmp
memory/4896-58-0x0000000007170000-0x0000000007178000-memory.dmp
memory/4896-30-0x0000000005F30000-0x0000000005F3A000-memory.dmp
memory/4896-67-0x0000000006000000-0x0000000006064000-memory.dmp
memory/4896-68-0x0000000007D60000-0x0000000007F22000-memory.dmp
memory/4896-29-0x0000000005F60000-0x0000000005FF2000-memory.dmp
memory/4896-71-0x0000000006000000-0x0000000006064000-memory.dmp
memory/4896-80-0x0000000006000000-0x0000000006064000-memory.dmp
memory/4896-101-0x0000000006000000-0x0000000006064000-memory.dmp
memory/4896-107-0x0000000006000000-0x0000000006064000-memory.dmp
memory/4896-113-0x0000000006000000-0x0000000006064000-memory.dmp
memory/4896-134-0x0000000006000000-0x0000000006064000-memory.dmp