Incident Score: Analysis & Impact (ORA1769175038)

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 Exploit Public-Facing Application (T1190) with moderate to high confidence (70%), supported by evidence indicating targeting Cerner’s outdated network before its data was migrated and Valid Accounts (T1078) with moderate confidence (60%), supported by evidence indicating attackers often exploit weak links, such as a single compromised login. Under the Credential Access tactic, the analysis identified Valid Accounts (T1078) with moderate to high confidence (80%), supported by evidence indicating exploit weak links, such as a single compromised login and Unsecured Credentials (T1552) with moderate confidence (60%), supported by evidence indicating legacy network containing electronic health records (EHR). Under the Collection tactic, the analysis identified Data from Local System (T1005) with high confidence (90%), supported by evidence indicating exposing sensitive patient data...Social Security numbers, medical histories and Data from Information Repositories (T1213) with high confidence (90%), supported by evidence indicating electronic Health Records (EHR) system...millions of patient records. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate to high confidence (80%), supported by evidence indicating data breach impacting millions of patient records and Transfer Data to Cloud Account (T1537) with moderate confidence (50%), supported by evidence indicating data was migrated to Oracle’s cloud infrastructure. Under the Impact tactic, the analysis identified Data Destruction (T1485) with moderate confidence (50%), supported by evidence indicating life-threatening errors if records are altered and Data Manipulation: Stored Data Manipulation (T1565.001) with moderate to high confidence (70%), supported by evidence indicating risks of...medical fraud, and life-threatening errors if records are altered. Under the Defense Evasion tactic, the analysis identified Disabling Security Tools (T1089) with lower confidence (40%), supported by evidence indicating legacy network exploitation...outdated network infrastructure and Hide Artifacts: Hidden Files and Directories (T1564.001) with moderate confidence (50%), supported by evidence indicating incident remained undisclosed to the public for months. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.