MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=human+body+anatomy+in+tamil+pdf'. The document body, though heavily obfuscated, also contains this URL and other links pointing to what appears to be a link farm designed for SEO manipulation. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is used for malicious redirection.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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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=human+body+anatomy+in+tamil+pdf In PDF document text
- http://files.dkgthetazeta.org/uploads/1/3/2/7/132740398/b38ceeea5557ba.pdfIn PDF document text
- http://files.foodloveblog.com/uploads/1/3/1/3/131380868/vosirijofa.pdfIn PDF document text
- http://files.mrsemsmathmayhem.com/uploads/1/3/1/6/131637014/08d6b.pdfIn PDF document text
- http://nukedo.safe-t-stepper.com/uploads/1/3/1/6/131606000/nefero.pdfIn PDF document text
- http://pivemon.eves-garden.info/uploads/1/3/1/3/131380160/lerurud.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://fedorahosted.org/lohitIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0741/8274/files/social_psychology_myers_11th_edition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8940/2783/files/bestiario_libro.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rafudegilezenetizaxesuvos.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5520/8858/files/63529267525.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5913/5132/files/49109091529.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8073/6165/files/dugupezulinuruguruvu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4481/4500/files/fefovifuzitotowepilativiv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5592/2852/files/ranikunilizovil.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vabagibad.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8754/3964/files/whirlpool_cabrio_washer_service_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/6978/2693/files/wipevijozopivepe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/9605/3662/files/firixasosab.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006db3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6DB3 | 5116 bytes |
SHA-256: 58b621e40e22c3bcc57f80275981510bc3129017690156d882933bf4ccb242cf |
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font_01_sfnt_off00007f04.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7F04 | 5152 bytes |
SHA-256: 492b45c4f41caee2aed76609f589ff7a3ef1f7c754d855ae3528087e089a44ca |
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font_02_sfnt_off000090c8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x90C8 | 10128 bytes |
SHA-256: 3cd3ea44c84321f825edd4234b3f7209aaf4b8aee8bf8f8f5a6b55fc4e8e9165 |
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