Spearphishing Attachment APT29 has used spearphishing emails with an attachment to deliver files with exploits to initial victims.002 Phishing : Spearphishing Link APT29 has used spearphishing with a link to trick victims into clicking on a link to a zip file containing malicious files.003 Phishing : Spearphishing via Service APT29 has used the legitimate mailing service Constant Contact to send phishing e - mails .003