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The decoy PDF is usually delivered as an email attachment named , “ invoice ” in an attempt to lure the victim into executing the file .
 ( phishing: delivered,  The decoy PDF: tool, invoice: trusted entity) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: phishing, data breach, ransom, discover vulnerability, patch vulnerability, Arguments type: vulnerable system, capabilities, vulnerability, number of victim, issues addressed, compromised data, damage amount, common vulnerabilities and exposures, victim, patch number, number of data, tool, discoverer, time, purpose, place, payment method, releaser, vulnerable system version, attacker, supported platform, patch, price, vulnerable system owner, trusted entity, attack pattern. 
Text: {0} 
Answer:
 ( phishing: delivered,  The decoy PDF: tool, invoice: trusted entity) 