Attackers are leveraging Adobe Creative Cloud to target Office 365 users with malicious links that appear to be coming legitimately from Cloud users but instead direct victims to a link that steals their credentials, researchers have discovered. Researchers from Avanan, a Check Point company, first discovered the ongoing campaign in December when they stopped one of the attacks, according to a report published Thursday. Adobe Creative Cloud is a popular suite of apps for file-sharing and creating and includes widely used apps such as Photoshop and Acrobat. Though attackers are primarily targeting Office 365 users – a favorite target among threat actors – researchers have seen them hit Gmail inboxes as well, Jeremy Fuchs, cybersecurity research analyst at Avanan, told Threatpost. The attack vector works like this: An attacker creates a free account in Adobe Cloud, then creates an image or a PDF file that has a link embedded within it, which they share by email to an Office 365 or Gmail user. “Think of it like when you create a Docusign,” Fuchs explained to Threatpost. “You create the document and then send it to the intended recipient. On the receiving end, they get an email notification, where they click to be directed to the link.” Though the links inside the documents sent to users are malicious, they themselves are not hosted within Adobe Cloud but, rather, from another domain controlled by attackers, he added. How the Campaign Works Researchers shared screenshots of the…
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