MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links pointing to redirector infrastructure, specifically identified as a malicious redirector and an SEO link farm. The primary malicious URL is https://ttraff.ru/wb?keyword=que%20es%20un%20arrecife%20de%20coral%20pdf, which is used to obscure the final destination. The ML classifier strongly indicates maliciousness, and the presence of embedded URLs supports a phishing or malware distribution attempt.
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=que%20es%20un%20arrecife%20de%20coral%20pdf In PDF document text
- http://files.kurskeducation.org/uploads/1/3/1/8/131856308/sebukazibi.pdfIn PDF document text
- http://files.vandegriftgolf.com/uploads/1/3/2/6/132682615/bitowusupexam.pdfIn PDF document text
- http://files.4pawsportraits.com/uploads/1/3/2/3/132302802/makirog.pdfIn PDF document text
- http://files.writercassmichaels.com/uploads/1/3/1/8/131856569/3974475.pdfIn PDF document text
- http://files.thealbertafloodroseproject.com/uploads/1/3/0/9/130969555/13cd00738d.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://jokurana.files.wordpress.com/2020/06/rosijaren.pdfIn PDF document text
- https://jiniluruja.files.wordpress.com/2020/07/rarugas.pdfIn PDF document text
- https://gulupux.files.wordpress.com/2020/07/jawubitize.pdfIn PDF document text
- https://bagesamajar.files.wordpress.com/2020/06/luseduwuworixejeg.pdfIn PDF document text
- https://sinezuve.files.wordpress.com/2020/06/repaw.pdfIn PDF document text
- https://gipumagu.files.wordpress.com/2020/07/fujukufi.pdfIn PDF document text
- https://xuvabogov.files.wordpress.com/2020/07/gogifixemufeb.pdfIn PDF document text
- https://gafazulitugo.files.wordpress.com/2020/07/26194649209.pdfIn PDF document text
- https://mitokoru.files.wordpress.com/2020/07/63038969179.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pelezegagujagemubejapo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1564/3041/files/30439152160.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9432/6942/files/61756034653.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kemisavixazesunomezixe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7594/5113/files/sazebew.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xekugoxozeritazol.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pinabazebovo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0804/0853/files/majasufitomarejupafis.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_off0000825e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x825E | 5012 bytes |
SHA-256: d70322689ce47662e79210602930d0cd2bb0a13e42111219f441ae54ee92dbe9 |
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font_01_sfnt_off00009369.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9369 | 11628 bytes |
SHA-256: 07d6cac96450213dc13a9552784438499c266056191feb1824c29d09ec0eaf8e |
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