Threat Intelligence Directory
Phishing

QR Code Phishing (Quishing)

Attack Trigger

Bypassing email link scanners by embedding malicious URLs in QR code images

What Attackers Want

Corporate credential theft enabling ransomware deployment or financial fraud worth millions

How This Attack Works

Quishing attacks embed malicious URLs inside QR code images attached to emails or PDF documents. Because most email security gateways scan text links — not image-encoded URLs — quishing consistently bypasses automated defenses. Victims scan the QR code with their phone, which often lacks corporate security controls, and land on a convincing credential harvest page. Common lures include MFA re-enrollment, parcel delivery confirmation, and account verification.

Red Flags to Watch For

  • Unexpected email asks you to scan a QR code rather than click a link
  • Lure claims MFA needs to be re-enrolled via QR code — legitimate IT teams do not do this by email
  • QR code is embedded in a PDF or image attachment rather than displayed inline
  • Scanning the code leads to a login page for Microsoft, Google, or your bank
  • The email arrived from an external sender but claims to be from your IT department
  • Mobile browser shows a URL you do not recognize after scanning

Known Malicious Domains

These domains have been associated with this attack. Never click links going to these addresses.

  • qr-verify-account.comMALICIOUS
  • scan-to-confirm-identity.netMALICIOUS
  • qr-login-secure.comMALICIOUS
  • qr-mfa-challenge.netMALICIOUS

Glance automatically blocks emails from domains on this list. Domain list is not exhaustive — attackers register new domains continuously.

How Glance Stops This

  • Domain similarity analysis catches lookalike sender addresses at millisecond speed
  • SPF / DKIM / DMARC validation flags authentication failures before you ever see the email
  • VirusTotal + Google Safe Browsing checks every link in real time
  • Urgency language detection scores the email higher for manual review
  • Known malicious domain blocklist updated continuously from live scan data

Don't wait to get hit.

Glance scans every incoming email against 12 detection layers — including the exact tactics described above — before it reaches your inbox.

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