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Rewterz Threat Alert – DocuSign Themed Phishing Using Cloud Storage

Severity

Medium

Analysis Summary

A phishing campaign targeting specific individuals, using DocuSign-themed lures and leveraging a public cloud storage service to host landing pages. The targeted users are from a variety of companies, but there appears to be no industry-specific targeting. The landing pages contain obfuscated JavaScript code and draw resources from multiple sites, some of which have TLS certificates associated with the email address contained in the list.

phishawspicture1.png

While the landing page for the credential phish also convincingly resembles DocuSign in branding and overall format, it is actually a phishing template that has been commonly used over the past few years:

phishingxorpicture2.png

Impact

Credential theft

Indicators of Compromise

IP(s) / Hostname(s)

  • 185[.]255[.]79[.]118
  • 194[.]58[.]112[.]174


URLs

  • postmasterpledge[.]ru
  • dataanarchyofsons[.]site
  • whistleobohemian[.]info
  • 300spartans[.]dancelikejoseph[.]xyz
  • xplicate[.]dancelikejoseph[.]info
  • dancelikejoseph[.]site

Remediation

  • Block all threat indicators at your respective controls.
  • Always be suspicious about emails sent by unknown senders.
  • Never click on the link/attachments sent by unknown senders.