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Critical CINC-20251221-10355BC6 new

Aggregate ID: aggind:024efd237c2d4f87958607652cb04c8b:17566168053

Incident Overview

Incident ID CINC-20251221-10355BC6
Severity Critical (90)
Status new
Alert Count 12
Host Count 1

Timeline

First Seen 2025-12-22 07:48:33
Last Seen 2025-12-22 07:49:31
Duration 0d 0h 0m
Created 2025-12-22 08:36
Updated 2026-01-13 15:14

Kill Chain Analysis

Rec... Ini... Exe... Per... Pri... Def... Cre... Dis... Lat... Col... Com... Exf... Imp...
Observed Tactics:
AI Powered IOA Execution Credential Access
Techniques:
Command and Scripting Interpreter User Execution OS Credential Dumping PowerShell

Affected Hosts (1)

BOOK-R0BE6S1NC3

Related Alerts (12)

Severity Status Hostname Description Tactic Command Line Time
High new BOOK-R0BE6S1NC3 A script meets the cloud-based behavioral machine learning model threshold for suspicious activity. Detection is based on code similarities to known malicious PowerShell scripts. AI Powered IOA powershell -c "[Ref].Assembly.GetType('System.Management.Automation.AmsiUtils').GetField('amsiInitFailed','NonPublic,Static').SetValue($null,$true)" 12-22 07:49
Informational new BOOK-R0BE6S1NC3 A process has written a known EICAR test file. Review the files written by the triggered process. Execution "C:\app\cortex-xdr-siem-test\.venv\Scripts\python.exe" mega_incident_generator.py --rounds 2 --interval 30 12-22 07:49
Critical new BOOK-R0BE6S1NC3 A process saved the Security Account Manager SAM or SYSTEM hive to disk. If this is unexpected, it likely indicates credential theft. Investigate the process tree. Credential Access reg save HKLM\SYSTEM C:\Users\ubuntu\AppData\Local\Temp\system.hiv 12-22 07:49
Critical new BOOK-R0BE6S1NC3 A process saved the Security Account Manager SAM or SYSTEM hive to disk. If this is unexpected, it likely indicates credential theft. Investigate the process tree. Credential Access reg save HKLM\SECURITY C:\Users\ubuntu\AppData\Local\Temp\security.hiv 12-22 07:49
High new BOOK-R0BE6S1NC3 A script meets the cloud-based behavioral machine learning model threshold for suspicious activity. Detection is based on code similarities to known malicious PowerShell scripts. AI Powered IOA powershell -c "[Ref].Assembly.GetType('System.Management.Automation.AmsiUtils').GetField('amsiInitFailed','NonPublic,Static').SetValue($null,$true)" 12-22 07:49
Critical new BOOK-R0BE6S1NC3 A process saved the Security Account Manager SAM or SYSTEM hive to disk. If this is unexpected, it likely indicates credential theft. Investigate the process tree. Credential Access reg save HKLM\SECURITY C:\Users\ubuntu\AppData\Local\Temp\security.hiv 12-22 07:49
High new BOOK-R0BE6S1NC3 A script meets the cloud-based behavioral machine learning model threshold for suspicious activity. Detection is based on code similarities to known malicious PowerShell scripts. AI Powered IOA powershell -c "[Ref].Assembly.GetType('System.Management.Automation.AmsiUtils').GetField('amsiInitFailed','NonPublic,Static').SetValue($null,$true)" 12-22 07:49
High new BOOK-R0BE6S1NC3 A PowerShell script attempted to bypass Microsoft's AntiMalware Scan Interface (AMSI). PowerShell exploit kits often attempt to bypass AMSI to evade detection. Review the script. Execution powershell -c "[Ref].Assembly.GetType('System.Management.Automation.AmsiUtils').GetField('amsiInitFailed','NonPublic,Static').SetValue($null,$true)" 12-22 07:49
High new BOOK-R0BE6S1NC3 An unusual process accessed lsass. This might indicate an attempt to dump credentials. Investigate the process tree. Credential Access C:\windows\system32\cmd.exe /c "procdump -ma lsass.exe C:\Users\ubuntu\AppData\Local\Temp\lsass.dmp" 12-22 07:49
High new BOOK-R0BE6S1NC3 An unusual process accessed lsass. This might indicate an attempt to dump credentials. Investigate the process tree. Credential Access C:\windows\system32\cmd.exe /c "procdump -ma lsass.exe C:\Users\ubuntu\AppData\Local\Temp\lsass.dmp" 12-22 07:49
High new BOOK-R0BE6S1NC3 A process appears to be launching mimikatz, a password dumping utility. mimikatz's primary purpose is to steal passwords. If credentials were dumped, change your passwords and investigate further. Credential Access C:\windows\system32\cmd.exe /c "powershell -c "sekurlsa::logonpasswords"" 12-22 07:49
Informational new BOOK-R0BE6S1NC3 A process has written a known EICAR test file. Review the files written by the triggered process. Execution "C:\app\cortex-xdr-siem-test\.venv\Scripts\python.exe" mega_incident_generator.py --rounds 2 --interval 30 12-22 07:48