HIGH 'Regsvr32 may have run code from an untrusted source' along with 4 other issues
RESOLVED OTHER
ID: #211
|
Created: 2026-01-03 02:42:51
5
Alerts
1
Hosts
11
Files
0
Network
Incident Overview
'Regsvr32 may have run code from an untrusted source' along with 4 other issues generated by XDR BIOC and XDR Agent detected on host desktop-fnumv3u involving 2 users
5
2026-01-03 02:50
Unassigned
XDR BIOC, XDR Agent
Malware
Collection
Credential Access
Execution
Affected Hosts & Users
desktop-fnumv3u\user
user
MITRE ATT&CK Mapping
T1059 - Command and Scripting Interpreter
T1098 - Account Manipulation
T1552 - Unsecured Credentials
T1003 - OS Credential Dumping
T1140 - Deobfuscate/Decode Files or Information
T1059.001 - Command and Scripting Interpreter: PowerShell
T1218.010 - System Binary Proxy Execution: Regsvr32
T1550 - Use Alternate Authentication Material
T1207 - Rogue Domain Controller
File Artifacts
11
| File Name | Path | SHA256 | Signature | Verdict | Actions |
|---|---|---|---|---|---|
| UltimateXdrGenerator.exe | - |
82fabb35db24a714b179c912f8c0cb90ef174c8db9d6c5bbc59346da7478d82d
|
SIGNATURE_UNSIGNED | UNKNOWN | VT |
| cmd.exe | - |
badf4752413cb0cbdc03fb95820ca167f0cdc63b597ccdb5ef43111180e088b0
|
SIGNATURE_SIGNED | UNKNOWN | VT |
| powershell.exe | - |
9785001b0dcf755eddb8af294a373c0b87b2498660f724e76c4d53f9c217c7a3
|
SIGNATURE_SIGNED | UNKNOWN | VT |
| regsvr32.exe | - |
022cb167a29a32dae848be91aef721c74f1975af151807dafcc5ed832db246b7
|
SIGNATURE_SIGNED | UNKNOWN | VT |
| ipconfig.exe | - |
53e000f5aa9b3a00934319db8080bb99cb323bf48fc628a64f75d7847c265606
|
SIGNATURE_SIGNED | UNKNOWN | VT |
| conhost.exe | - |
b02ee54fb2ec69673386d41119ee8ed083a6eab3bfca6aa2155d20ce68ef8963
|
SIGNATURE_SIGNED | UNKNOWN | VT |
| python.exe | - |
467014615a5255aca450ae88100dd2caf887da87657f00e3c2171ec44a685aec
|
SIGNATURE_SIGNED | UNKNOWN | VT |
| rundll32.exe | - |
076592ca1957f8f357cc201f0015072c612f5770ad7de85f87f254253c754dd7
|
SIGNATURE_SIGNED | UNKNOWN | VT |
| whoami.exe | - |
1d4902a04d99e8ccbfe7085e63155955fee397449d386453f6c452ae407b8743
|
SIGNATURE_SIGNED | UNKNOWN | VT |
| cscript.exe | - |
71864a482441889e8a32acead423cf2cefa982695dedc98cc8eb11b78335a5db
|
SIGNATURE_SIGNED | UNKNOWN | VT |
| WMIC.exe | - |
da603fa720ab43aa6d4d36aa9fdb828dab9645523eabaac209af6451d5b4d757
|
SIGNATURE_SIGNED | UNKNOWN | VT |
Network Artifacts
0
No network artifacts found for this incident
Process Artifacts
5
| Process | Command Line | Parent Process | User |
|---|---|---|---|
| cmd.exe |
C:\WINDOWS\SYSTEM32\cmd.exe /c ""C:\app\cortex-xdr-siem-test\xdr_ultimate_runner...
|
cmd.exe | User |
| UltimateXdrGenerator.exe |
"C:\app\cortex-xdr-siem-test\xdr_tools\UltimateXdrGenerator\bin\publish\Ultimate...
|
cmd.exe | DESKTOP-FNUMV3U\User |
| UltimateXdrGenerator.exe |
"C:\app\cortex-xdr-siem-test\xdr_tools\UltimateXdrGenerator\bin\publish\Ultimate...
|
cmd.exe | DESKTOP-FNUMV3U\User |
| cmd.exe |
C:\WINDOWS\SYSTEM32\cmd.exe /c ""C:\app\cortex-xdr-siem-test\xdr_ultimate_runner...
|
cmd.exe | User |
| UltimateXdrGenerator.exe |
"C:\app\cortex-xdr-siem-test\xdr_tools\UltimateXdrGenerator\bin\publish\Ultimate...
|
cmd.exe | DESKTOP-FNUMV3U\User |
Registry Artifacts
0
No registry artifacts found for this incident
Analyst Verdict
HIGH
- Isolate affected endpoints
- Investigate all related alerts
- Document findings
Summary
5
Alerts
1
Hosts
11
Files
0
Network
Alert Categories
Malware
Collection
Credential Access
Execution
Timeline
01-03 02:50:04
Incident Modified
Status or details updated
01-03 02:50:04
Incident Resolved
resolved other
01-03 02:46:21
Credential Gathering Protection - 3380811775
high - Detected (Reported)
01-03 02:46:19
Command-line arguments match Mimikatz execution
high - Detected
01-03 02:46:19
PowerShell runs with known Mimikatz arguments
medium - Detected
01-03 02:46:19
Credential Gathering Protection - 510630382
high - Prevented (Blocked)
01-03 02:42:51
Incident Created
#211 - 'Regsvr32 may have run code from an untrusted source' along with 4 other issues
01-03 02:42:51
UltimateXdrGenerator.exe
Verdict: Unknown
01-03 02:42:51
cmd.exe
Verdict: Unknown
01-03 02:42:51
powershell.exe
Verdict: Unknown
01-03 02:42:51
regsvr32.exe
Verdict: Unknown
01-03 02:42:51
ipconfig.exe
Verdict: Unknown
01-03 02:42:51
conhost.exe
Verdict: Unknown
01-03 02:42:51
python.exe
Verdict: Unknown
01-03 02:42:51
rundll32.exe
Verdict: Unknown
01-03 02:42:51
whoami.exe
Verdict: Unknown
01-03 02:42:51
cscript.exe
Verdict: Unknown
01-03 02:39:15
Regsvr32 may have run code from an untrusted source
high - Detected