HIGH Regsvr32 may have run code from an untrusted source

Detected ID: #1063 | Detected: 2026-01-01 15:18:21 | Execution
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Alert Overview

Process action type = execution AND target process cmd = * /i:*http*, * /i*scrobj.dll* AND target process name = regsvr32.exe

Unclassified
XDR BIOC
New
DS:PANW/XDR Agent DOM:Security
Host Information
DESKTOP-FNUMV3U
172.30.1.80 172.26.224.1 172.18.176.1
DESKTOP-FNUMV3U\User
6761b82386d0481190f91c4255079cb7
-
Process Information Process Execution
Actor Process (Executor)
Process Name UltimateXdrGenerator.exe
Path C:\app\cortex-xdr-siem-test\xdr_tools\UltimateXdrGenerator\bin\publish\UltimateXdrGenerator.exe
PID 38028
SHA256 82fabb35db24a714b179c912f8c0cb90ef174c8db9d6c5bbc59346da7478d82d VT
MD5 115c0e9ca5ff65946e9fc7886c238e7f 
"C:\app\cortex-xdr-siem-test\xdr_tools\UltimateXdrGenerator\bin\publish\UltimateXdrGenerator.exe"  --once --scenarios 20
Action Process (Target)
Process Name regsvr32.exe
SHA256 022cb167a29a32dae848be91aef721c74f1975af151807dafcc5ed832db246b7 VT
Signature Microsoft Corporation Signed 
"regsvr32.exe" /s /n /u /i:C:\Windows\Temp\test.sct scrobj.dll
Parent Process (Causality)
Process Name cmd.exe
Path C:\Windows\System32\cmd.exe
SHA256 badf4752413cb0cbdc03fb95820ca167f0cdc63b597ccdb5ef43111180e088b0 VT
MD5 2b40c98ed0f7a1d3b091a3e8353132dc 
C:\WINDOWS\SYSTEM32\cmd.exe /c ""C:\app\cortex-xdr-siem-test\xdr_ultimate_runner.bat""
MITRE ATT&CK Mapping
TA0005 - Defense Evasion
T1218.010 - System Binary Proxy Execution: Regsvr32
Quick Actions
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Severity Analysis
HIGH

High priority investigation needed

Summary
Events 1
IP Addresses 3
Tags 2
File Artifacts Yes
Network Artifacts No
Registry Artifacts No
Analyst Verdict