• Sublime Core Feed
Medium Severity

Credential phishing: Fake card notification with tracking lure

Description

Detects inbound messages using fake credit card delivery or approval themes with credential theft intent. Messages contain card-related language paired with delivery or status indicators, and tracking call-to-action links.

References

No references.

Sublime Security
Created Mar 24th, 2026 • Last updated Mar 24th, 2026
Source
type.inbound
and (
  (
    regex.icontains(subject.base, '\bcard\b')
    or regex.icontains(body.current_thread.text, '\bcard\b')
  )
  and strings.ilike(body.current_thread.text,
                    "*could be with you*",
                    "*currently accessible*",
                    "*collect bank details*",
                    "*not a financial institution*"
  )
)
and any(body.links,
        strings.ilike(.display_text,
                      "*track order*",
                      "*track*card*",
                      "*card status*"
        )
)
and any(ml.nlu_classifier(body.current_thread.text).intents,
        .name == "cred_theft" and .confidence == "high"
)
and not (
  sender.email.domain.root_domain in $high_trust_sender_root_domains
  and coalesce(headers.auth_summary.dmarc.pass, false)
)
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