Incident Score: Analysis & Impact (NELGRALOS1782412398)

Rankiteo's analysis has identified several MITRE ATT&CK tactics and techniques associated with this incident, each with varying levels of confidence based on available evidence. Under the Initial Access tactic, the analysis identified Valid Accounts (T1078) with moderate confidence (60%), supported by evidence indicating unauthorized access to its systems between September 28 and October 8, 2024 and Exploit Public-Facing Application (T1190) with moderate confidence (50%), supported by evidence indicating internal server disruption disrupting phone and internet services. Under the Execution tactic, the analysis identified User Execution: Malicious File (T1204.002) with moderate to high confidence (70%), supported by evidence indicating ransomware group BlackSuit claimed responsibility for the attack. Under the Credential Access tactic, the analysis identified OS Credential Dumping (T1003) with moderate confidence (60%), supported by evidence indicating exposing sensitive personal information, including Social Security numbers and Unsecured Credentials: Credentials In Files (T1552.001) with moderate confidence (50%), supported by evidence indicating financial account details, health-related data compromised. Under the Collection tactic, the analysis identified Data from Local System (T1005) with moderate to high confidence (80%), supported by evidence indicating 9,414 records exposed, including names, SSNs, student IDs, financial data and Data from Information Repositories (T1213) with moderate to high confidence (70%), supported by evidence indicating employee and student files stolen (claimed by BlackSuit). Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate to high confidence (80%), supported by evidence indicating blackSuit claimed data exfiltration; 9,414 records compromised. Under the Impact tactic, the analysis identified Data Encrypted for Impact (T1486) with moderate to high confidence (70%), supported by evidence indicating ransomware attack disrupting phone and internet services and Defacement: Internal Defacement (T1491.001) with moderate confidence (50%), supported by evidence indicating internal server disruption; delayed detection (21 months). Under the Defense Evasion tactic, the analysis identified Indicator Removal: Clear Windows Event Logs (T1070.001) with moderate confidence (60%), supported by evidence indicating delayed detection (21 months after breach) and Impair Defenses: Disable or Modify Tools (T1562.001) with moderate confidence (50%), supported by evidence indicating disruption of phone and internet services. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.