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Ransomware typically infects computers when its user opens a file attached to spam mail from a sender pretending to be a legitimate entity such as a parcel delivery company , according to the government - affiliated Information - Technology Promotion Agency .
 a legitimate entity: trusted entity; a sender: attacker; opens a file attached to spam mail: attack pattern; Ransomware typically infects computers: purpose; its user: victim; a parcel delivery company: attacker
Given event type and trigger, please tell me the arguments of all the listed option. Output format is "name1: role1; name2: role2". 
Event type: phishing 
  Option: victim, attacker, attack pattern, purpose, damage amount, tool, time, place, trusted entity 
Text: {0} 
Answer:
 a legitimate entity: trusted entity; a sender: attacker; opens a file attached to spam mail: attack pattern; Ransomware typically infects computers: purpose; its user: victim; a parcel delivery company: attacker