Incident Score: Analysis & Impact (IMP1768956227)

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 Phishing (T1566) with high confidence (90%), with evidence including unusual activity in its email environment, and email systems, which were likely the initial attack vector and Valid Accounts (T1078) with moderate to high confidence (80%), supported by evidence indicating unauthorized individual had accessed certain email accounts. Under the Execution tactic, the analysis identified User Execution: Malicious File (T1204.002) with moderate to high confidence (70%), supported by evidence indicating phishing attacks and ransomware. Under the Credential Access tactic, the analysis identified Brute Force (T1110) with moderate confidence (50%), supported by evidence indicating unauthorized individual had accessed certain email accounts (implied weak credentials) and Credentials from Password Stores (T1555) with moderate confidence (60%), supported by evidence indicating email compromise (potential credential harvesting). Under the Discovery tactic, the analysis identified Account Discovery (T1087) with moderate to high confidence (70%), supported by evidence indicating attackers accessed its network for less than 48 hours (implied reconnaissance) and File and Directory Discovery (T1083) with moderate to high confidence (80%), supported by evidence indicating 139 GB of data exfiltrated (implied data discovery). Under the Collection tactic, the analysis identified Data from Local System (T1005) with high confidence (90%), supported by evidence indicating exposing sensitive patient data including names, dates of birth, insurance details and Email Collection (T1114) with high confidence (90%), supported by evidence indicating unauthorized individual had accessed certain email accounts. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with high confidence (90%), with evidence including 139 GB of data exfiltrated, and qilin ransomware group...published the stolen data. Under the Impact tactic, the analysis identified Data Encrypted for Impact (T1486) with moderate confidence (50%), supported by evidence indicating ransomware attack (implied encryption). Under the Defense Evasion tactic, the analysis identified Valid Accounts (T1078) with moderate to high confidence (80%), supported by evidence indicating unauthorized access via email accounts (blending in with legitimate activity) and Hide Artifacts (T1564) with moderate confidence (60%), supported by evidence indicating attackers accessed its network for less than 48 hours (implied stealth). These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.