Sublime Security medium experimental mql

Attachment: EML file with IPFS links

Attached EML uses engaging language and IPFS links were detected in the EML file. IPFS has been recently observed hosting phishing sites.

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Detection Logic

type.inbound
and any(attachments,
        (.content_type == "message/rfc822" or .file_extension in ('eml'))
        and any(file.explode(.),
                any(.scan.url.urls,
                    strings.icontains(ml.link_analysis(.).effective_url.url,
                                      'ipfs'
                    )
                    or (
                      regex.icontains(ml.link_analysis(.).effective_url.path,
                                      '[\.-/]ipfs
| ipfs[\.-/]'
                      )
                      and ml.link_analysis(.).effective_url.domain.domain not in $org_domains
                      and (
                        (
                          // don't include high rep domains
                          ml.link_analysis(.).effective_url.domain.domain not in $tranco_1m
                          and ml.link_analysis(.).effective_url.domain.domain not in $umbrella_1m
                        )
                        // if it's in Tranco or Umbrella, still include it if it's one of these
                        or ml.link_analysis(.).effective_url.domain.domain in $free_file_hosts
                        or ml.link_analysis(.).effective_url.domain.root_domain in $free_file_hosts
                        or ml.link_analysis(.).effective_url.domain.root_domain in $free_subdomain_hosts
                      )
                    )
                )
        )
)

Field Validations

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