MALICIOUS
192
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF is an image-only lure, typical of phishing, designed to trick users into clicking a link. The primary link redirects through ttraff.ru, which is flagged as malicious infrastructure. The document also contains a large number of links to external PDFs, many hosted on cdn.shopify.com, likely for SEO manipulation or to obscure the malicious redirector. No scripts were extracted, but the presence of a malicious redirector and the image-based lure strongly indicate a phishing attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
Heuristics 4
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://ttraff.ru/wb?keyword=pandoc%20markdown%20to%20pdf%20font%20size In PDF document text
- http://botosul.tdoulaarts.com/uploads/1/3/2/7/132710712/ae97c5abd4.pdfIn PDF document text
- http://files.elevateyc.org/uploads/1/3/1/0/131070309/7538866.pdfIn PDF document text
- http://files.2dacademy.com/uploads/1/3/1/4/131437246/9770696.pdfIn PDF document text
- http://dokirid.freebirdbooks.com/uploads/1/3/0/8/130814328/2614673.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/1639/4648/files/toxalurimawuxakenolodi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0141/3785/files/88360859893.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4207/8877/files/calculus_early_transcendentals_briggs_free_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2738/9851/files/83427267397.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5476/8021/files/xotoxerejavelilesolekibe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6535/1071/files/voduxi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dosodasanofesawule.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3537/7307/files/98160848545.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8899/3703/files/c_add_to_list.pdfIn PDF document text
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