Sublime Security low experimental mql

Attachment: PDF file with link to fake Bitcoin exchange

Fraudulent message containing a PDF notification of unclaimed Bitcoin assets. The PDF file contains a link to a fake Cryptocurrency portal. Attempting to withdraw funds prompts the user to enter payment information.

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Detection Logic

type.inbound
and sender.email.domain.root_domain in $free_email_providers
and length(attachments) == 1
and all(attachments,
        .file_extension == "pdf"
        and regex.icontains(.file_name, '(\d\.\d{3,4}.{0,12}BTC
| bitcoin)')
        and any(file.explode(.),
                .scan.exiftool.page_count >= 5
                and .depth == 0
                and length(filter(.scan.strings.strings,
                                  regex.match(., '^\/URI \(http.*')
                           )
                ) == 1
        )
)

Field Validations

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