• Sublime Core Feed
Medium Severity

Open Redirect: api.spently.com

Labels

Credential Phishing
Malware/Ransomware
Open redirect
Sender analysis
URL analysis

Description

Message contains use of the api.spently.com redirect. This has been exploited in the wild.

References

No references.

Sublime Security
Created Feb 6th, 2025 • Last updated Feb 6th, 2025
Feed Source
Sublime Core Feed
Source
GitHub
type.inbound
  // there are less than 10 unique links for api.spently.com within the body.links
and length(distinct(filter(body.links, .href_url.domain.domain == "api.spently.com"), .href_url.url)) < 10
and any(body.links,
        .href_url.domain.domain == "api.spently.com"
        and strings.istarts_with(.href_url.path, '/api/spently/click')
        and strings.icontains(.href_url.query_params, 'url=')
        and strings.icontains(.href_url.query_params, 'type=')
        and not regex.icontains(.href_url.query_params,
                                  'url=(?:https?(?:%3a|:))?(?:%2f|\/){2}[^&]*spently\.com(?:\&|\/|$|%2f)'
        )
)
and not sender.email.domain.root_domain == "spently.com"

// negate highly trusted sender domains unless they fail DMARC authentication
and (
  (
    sender.email.domain.root_domain in $high_trust_sender_root_domains
    and not headers.auth_summary.dmarc.pass
  )
  or sender.email.domain.root_domain not in $high_trust_sender_root_domains
)
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