Sublime Security medium experimental mql

Attachment: PDF with suspicious internal object reference identifier

Detects inbound messages containing PDF attachments with a specific internal object reference identifier pattern, which may indicate a crafted or malicious PDF file.

View Source

Detection Logic

type.inbound
and any(filter(attachments, .file_type == "pdf"),
        any(file.explode(.),
            .depth == 0
            and any(.scan.strings.strings,
                    strings.contains(., "[<C57237C22450666518136DE404118E5E>")
            )
        )
)

Field Validations

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