www.darkreading.com 2/2/2026, 10:45:59 PM · via preferred

Attackers Harvest Dropbox Logins Via Fake PDF Lures

ATTACKERS are carrying out a multistage, credential-hocusing phishing campaign that targets corporate inboxes by asking employees to view a fake “request orders” PDF, which then redirects to a convincing Dropbox login page. The PDF itself contains no malware, but the lure leads users to a blurry PDF hosted on a legitimate cloud service, with a second link that prompts a fake Dropbox authentication.

When victims enter credentials, the site delays for five seconds before returning an “incorrect username/password” message, and the harvested data, along with location information, is fed to an attacker-controlled Telegram bot. The campaign is notable for passing several email-authentication checks (SPF, DKIM and DMARC), a factor that helps it avoid easy detection.

Forcepoint researchers described the scheme as credential theft with the potential for account takeover and follow-on fraud, and according to Forcepoint X-Labs, the actors use the collected data to enable further misuse. The report, published on 2 February 2026, urges organisations to reinforce phishing awareness and verify requests via secondary channels.

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Article by CyberSIXT