MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF document contains a large number of embedded links, many of which point to Shopify domains but are likely part of a link farm designed to improve search engine rankings for malicious content. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=antibiotics+guidelines+pdf', indicating an attempt to direct users to harmful sites. The document body itself is heavily obfuscated but contains references to the redirector URL and other PDF links.
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=antibiotics+guidelines+pdf In PDF document text
- http://files.stnicholasbuccleuch.org.uk/uploads/1/3/0/8/130813132/1760428.pdfIn PDF document text
- http://files.appalachianaxeworks.com/uploads/1/3/1/8/131871852/damaluvudolanulatape.pdfIn PDF document text
- http://files.gratefuldavecharters.com/uploads/1/3/0/7/130775135/9791504.pdfIn PDF document text
- http://vevazik.natjonesartist.com/uploads/1/3/1/8/131857419/bilemarozazogu.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/1/0431/9870/9918/files/kinokotorepeziri.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2040/3356/files/58385894794.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/2573/3531/files/review_handbook_in_diagnostic_bacteriology_rodriguez.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8859/3567/files/wukadalovitufuno.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0451/9329/8071/files/75977939548.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7063/5678/files/33299258444.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8942/0695/files/auditoria_de_gestion_concepto.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3293/6605/files/47756553728.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7581/9927/files/atlas_item_ids.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6372/1637/files/nevegakesob.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5045/1623/files/58685095130.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0448/1505/7056/files/breves_de_comptoir_gratuit.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2930/7293/files/64423145568.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/0767/9397/files/26587806436.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_off00008047.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8047 | 5148 bytes |
SHA-256: a4ccfaba6f31e5907494b76df7a51ec77ada044aac7515357eafd9ed5cf471fe |
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font_01_sfnt_off000091de.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x91DE | 10208 bytes |
SHA-256: e3415c51484b9f315085aefafab9ad6d06e6f4bc97d6054c4517f70179e10ff8 |
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