MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple heuristics indicating malicious redirection and SEO link farming, specifically pointing to a redirector URL. The document body, though heavily obfuscated, contains the same redirector URL and several benign-looking Shopify URLs, suggesting a lure to disguise malicious activity. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to redirect users to harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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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/pify?keyword=convert+pdf+to+word+online+iphone In PDF document text
- http://files.learningdifferencesresourcegroup.org/uploads/1/3/0/7/130739919/12e2427.pdfIn PDF document text
- http://files.supportics.org/uploads/1/3/1/3/131380547/8558616.pdfIn PDF document text
- http://files.healingafterwar.com/uploads/1/3/1/1/131164428/zolix.pdfIn PDF document text
- http://files.sandsippas.com/uploads/1/3/1/3/131384656/wosezifonalimum.pdfIn PDF document text
- http://files.countrylivinginspiration.com/uploads/1/3/2/6/132683267/cf1e743f7ea.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9779/2415/files/cub_cadet_tractors_with_loader.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7362/6524/files/50805612385.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/4126/8647/files/marupudil.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2666/8952/files/resupapisekijuduj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/9792/2461/files/bunufiwiritululavujaduk.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/6317908028.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6897/1418/files/78376556326.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6135/4404/files/76024355859.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7285/5967/files/bulebawanelovitomubado.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2589/0469/files/fake_address_generator_us.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0329/7437/files/gugixijegobixupul.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5963/4591/files/69277422285.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006e55.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6E55 | 4796 bytes |
SHA-256: b203c39cea4de47557776a85c5d1f3850798c1cc082f61acc378bd3254cb5ef8 |
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font_01_sfnt_off00007eaf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7EAF | 9644 bytes |
SHA-256: 8f61633141b97d0b85fe79a00afc6db3ac3f6a8abb9cb5b0c3400c0c8ea287e7 |
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