Incident Score: Analysis & Impact (NIRWES1778776360)

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 confidence (50%), supported by evidence indicating unauthorized third party accessed its network between September 17 and 25 and Valid Accounts (T1078) with moderate confidence (60%), supported by evidence indicating unauthorized network access suggests possible compromised credentials. Under the Credential Access tactic, the analysis identified OS Credential Dumping (T1003) with moderate to high confidence (70%), supported by evidence indicating high sensitivity data (SSNs, credit cards) accessed implies credential theft and Unsecured Credentials: Credentials In Files (T1552.001) with moderate confidence (50%), supported by evidence indicating network access led to exfiltration of 1.7 TB of data. Under the Discovery tactic, the analysis identified Account Discovery (T1087) with moderate to high confidence (70%), supported by evidence indicating compromised data includes names, SSNs, and medical records and File and Directory Discovery (T1083) with moderate to high confidence (80%), supported by evidence indicating 1.7 TB of data exfiltrated suggests extensive discovery phase. Under the Collection tactic, the analysis identified Data from Local System (T1005) with high confidence (90%), supported by evidence indicating names, SSNs, credit cards, medical records compromised and Data from Network Shared Drive (T1039) with moderate to high confidence (80%), supported by evidence indicating 1.7 TB of data stolen from network systems. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with high confidence (90%), supported by evidence indicating pEAR group claimed responsibility for stealing 1.7 TB of data and Exfiltration Over Web Service (T1567) with moderate to high confidence (70%), supported by evidence indicating data published by ransomware group suggests web-based exfiltration. Under the Impact tactic, the analysis identified Data Encrypted for Impact (T1471) with lower confidence (20%), supported by evidence indicating pEAR focuses on data theft rather than encryption, Defacement (T1491) with lower confidence (30%), supported by evidence indicating no evidence of defacement, but data leak impacts reputation, and Financial Theft (T1657) with moderate to high confidence (80%), supported by evidence indicating credit/debit card numbers and financial account details compromised. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.