Analytics Story: Prestige Ransomware

Date: 2022-11-30 ID: 8b8d8506-b931-450c-b794-f24184ca1deb Author: Teoderick Contreras, Splunk Product: Splunk Enterprise Security

Description

Leverage searches that allow you to detect and investigate unusual activities that might relate to the Prestige Ransomware

Why it matters

This story addresses Prestige ransomware. This ransomware payload seen by Microsoft Threat Intelligence Center(MSTIC) as a ransomware campaign targeting organization in the transportation and logistic industries in some countries. This ransomware campaign highlight the destructive attack to its target organization that directly supplies or transporting military and humanitarian services or assistance. MSTIC observed this ransomware has similarities in terms of its deployment techniques with CaddyWiper and HermeticWiper which is also known malware campaign impacted multiple targeted critical infrastructure organizations. This analytic story will provide techniques and analytics that may help SOC or security researchers to monitor this threat.

Detections

Name ▲▼ Technique ▲▼ Type ▲▼
Suspicious Process File Path Create or Modify System Process TTP
Common Ransomware Extensions Data Destruction TTP
Create or delete windows shares using net exe Network Share Connection Removal TTP
Deleting Shadow Copies Inhibit System Recovery TTP
Dump LSASS via comsvcs DLL LSASS Memory TTP
Excessive Usage Of Cacls App File and Directory Permissions Modification Anomaly
Executable File Written in Administrative SMB Share SMB/Windows Admin Shares TTP
Impacket Lateral Movement Commandline Parameters SMB/Windows Admin Shares, Distributed Component Object Model, Windows Management Instrumentation, Windows Service TTP
Impacket Lateral Movement smbexec CommandLine Parameters SMB/Windows Admin Shares, Distributed Component Object Model, Windows Management Instrumentation, Windows Service TTP
Impacket Lateral Movement WMIExec Commandline Parameters SMB/Windows Admin Shares, Distributed Component Object Model, Windows Management Instrumentation, Windows Service TTP
Network Connection Discovery With Arp System Network Connections Discovery Hunting
Network Connection Discovery With Netstat System Network Connections Discovery Hunting
Network Discovery Using Route Windows App Internet Connection Discovery Hunting
Ntdsutil Export NTDS NTDS TTP
Recon AVProduct Through Pwh or WMI Gather Victim Host Information TTP
Scheduled Task Deleted Or Created via CMD Scheduled Task TTP
Schtasks scheduling job on remote system Scheduled Task TTP
WBAdmin Delete System Backups Inhibit System Recovery TTP
Windows Cached Domain Credentials Reg Query Cached Domain Credentials Anomaly
Windows Change Default File Association For No File Ext Change Default File Association TTP
Windows ClipBoard Data via Get-ClipBoard Clipboard Data Anomaly
Windows Credentials from Password Stores Query Credentials from Password Stores Anomaly
Windows Credentials in Registry Reg Query Credentials in Registry Anomaly
Windows Excessive Usage Of Net App Account Access Removal Anomaly
Windows Group Discovery Via Net Local Groups, Domain Groups Hunting
Windows Indirect Command Execution Via Series Of Forfiles Indirect Command Execution Anomaly
Windows Information Discovery Fsutil System Information Discovery Anomaly
Windows Network Connection Discovery Via Net System Network Connections Discovery Hunting
Windows New Default File Association Value Set Change Default File Association Hunting
Windows Office Product Spawned Rundll32 With No DLL Spearphishing Attachment TTP
Windows Password Managers Discovery Password Managers Anomaly
Windows Private Keys Discovery Private Keys Anomaly
Windows Registry Entries Exported Via Reg Query Registry Hunting
Windows Registry Entries Restored Via Reg Query Registry Hunting
Windows Security Support Provider Reg Query Security Support Provider Anomaly
Windows Service Stop Attempt Service Stop Hunting
Windows Steal or Forge Kerberos Tickets Klist Steal or Forge Kerberos Tickets Hunting
Windows Suspicious Process File Path Create or Modify System Process, Match Legitimate Name or Location TTP
Windows System Network Config Discovery Display DNS System Network Configuration Discovery Anomaly
Windows System Network Connections Discovery Netsh System Network Connections Discovery Anomaly
Windows System User Discovery Via Quser System Owner/User Discovery Hunting
Windows WMI Process And Service List Windows Management Instrumentation Anomaly
WinEvent Scheduled Task Created Within Public Path Scheduled Task TTP
WinEvent Windows Task Scheduler Event Action Started Scheduled Task Hunting

Data Sources

Name ▲▼ Platform ▲▼ Sourcetype ▲▼ Source ▲▼
CrowdStrike ProcessRollup2 N/A crowdstrike:events:sensor crowdstrike
Powershell Script Block Logging 4104 Windows icon Windows xmlwineventlog XmlWinEventLog:Microsoft-Windows-PowerShell/Operational
Sysmon EventID 1 Windows icon Windows xmlwineventlog XmlWinEventLog:Microsoft-Windows-Sysmon/Operational
Sysmon EventID 11 Windows icon Windows xmlwineventlog XmlWinEventLog:Microsoft-Windows-Sysmon/Operational
Sysmon EventID 13 Windows icon Windows xmlwineventlog XmlWinEventLog:Microsoft-Windows-Sysmon/Operational
Windows Event Log Security 4688 Windows icon Windows xmlwineventlog XmlWinEventLog:Security
Windows Event Log Security 4698 Windows icon Windows xmlwineventlog XmlWinEventLog:Security
Windows Event Log Security 5145 Windows icon Windows xmlwineventlog XmlWinEventLog:Security
Windows Event Log TaskScheduler 200 Windows icon Windows wineventlog WinEventLog:Microsoft-Windows-TaskScheduler/Operational
Windows Event Log TaskScheduler 201 Windows icon Windows xmlwineventlog XmlWinEventLog:Security

References

Source: GitHub | Version: 1