MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links, many of which point to a redirector infrastructure known for malicious activity. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/wb?keyword=concepto%20de%20episiotomia%20y%20episiorrafia%20pdf', which is also flagged as a malicious redirector. This suggests the document is part of a link farm or SEO poisoning campaign designed to lure users to malicious sites.
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/wb?keyword=concepto%20de%20episiotomia%20y%20episiorrafia%20pdf In PDF document text
- http://files.elmtreehome.com/uploads/1/3/1/6/131606431/vibituwinotodi.pdfIn PDF document text
- http://files.daniellebschwartz.com/uploads/1/3/1/6/131607103/gonudaseparos-leburasovo.pdfIn PDF document text
- http://kinipotu.thadwester.com/uploads/1/3/0/8/130874284/ec35f6714.pdfIn PDF document text
- http://pojijeki.sv-integrity.com/uploads/1/3/0/7/130776757/lamusezubid.pdfIn PDF document text
- http://files.mindthestep.nl/uploads/1/3/0/7/130776386/3f04d.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/1/0453/5566/3515/files/gametogenesis_pada_tumbuhan.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9573/6988/files/51893787139.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/5477/4949/files/little_book_of_currency_trading.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6244/3688/files/spelling_bee_grade_7_word_list.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0392/8991/files/mercruiser_350_mag_mpi_service_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8217/6917/files/tutorial_de_ableton_live_9_en_espaol.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1080/8216/files/ninuvixotadar.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3751/5176/files/reality_therapy_william_glasser.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9692/3555/files/uji_alkalinitas_gelas.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1322/6143/files/dugozapuxadusasopusima.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0079/9140/files/36056663477.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6189/4565/files/65329641944.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6248/4383/files/absolute_advantage_vs_comparative_advantage_example.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_off000066b1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x66B1 | 5276 bytes |
SHA-256: 9067e4d151aad949dee64065745d653c5c9f1366f69d17523ba723747bc31f83 |
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font_01_sfnt_off0000788a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x788A | 10220 bytes |
SHA-256: 2bdf7f06460bc9777fc56148fc7b711a0a9df062ff4294249fd5ccc54f7cc45c |
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