Incident Score: Analysis & Impact (AMEHIGLPLEDE1777062318)

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 malware distributed via phishing messages, and attack vector such as Phishing (Malware) and User Execution: Malicious File (T1204.002) with moderate to high confidence (80%), supported by evidence indicating malware distributed via phishing messages compromising advisors’ devices. Under the Execution tactic, the analysis identified User Execution: Malicious File (T1204.002) with moderate to high confidence (80%), supported by evidence indicating malware distributed via phishing messages compromising advisors’ devices. Under the Persistence tactic, the analysis identified Valid Accounts (T1078) with high confidence (90%), supported by evidence indicating unauthorized access to LPL’s web-based advisor portal via compromised advisors’ devices. Under the Privilege Escalation tactic, the analysis identified Valid Accounts (T1078) with moderate to high confidence (80%), supported by evidence indicating compromised financial advisors’ devices granted unauthorized access to portal. Under the Credential Access tactic, the analysis identified Valid Accounts: Cloud Accounts (T1078.004) with moderate to high confidence (80%), supported by evidence indicating unauthorized access to LPL’s web-based advisor portal via compromised devices. Under the Lateral Movement tactic, the analysis identified Remote Services: Cloud Services (T1021.007) with moderate to high confidence (70%), supported by evidence indicating access to web-based advisor portal from compromised advisor devices. Under the Collection tactic, the analysis identified Data from Local System (T1005) with moderate to high confidence (70%), supported by evidence indicating possibility of sensitive client data access (not confirmed). Under the Command and Control tactic, the analysis identified Application Layer Protocol: Web Protocols (T1071.001) with moderate confidence (60%), supported by evidence indicating unauthorized access to web-based advisor portal. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate to high confidence (70%), supported by evidence indicating unauthorized securities transactions and financial transfers. Under the Impact tactic, the analysis identified Resource Hijacking (T1496) with moderate to high confidence (80%), supported by evidence indicating unauthorized securities transactions and financial transfers in client accounts. Under the Defense Evasion tactic, the analysis identified Masquerading (T1036) with moderate confidence (60%), supported by evidence indicating malware distributed via phishing messages (likely disguised as legitimate) and Impair Defenses: Disable or Modify Tools (T1562.001) with moderate confidence (50%), supported by evidence indicating new technical safeguards implemented post-incident. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.