MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document contains a large number of external links, many of which appear to be part of an SEO link farm. The primary lure URL, 'https://leonvi.ru/strik?utm_term=spanish+medical+terminology+class+near+me', redirects to a PDF file, suggesting a phishing or malicious content delivery attempt. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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External URI info PDF_URIPDF contains an external URL action
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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://leonvi.ru/strik?utm_term=spanish+medical+terminology+class+near+me PDF link annotation
- https://cdn-cms.f-static.net/uploads/4450141/normal_602b38c1e64a9.pdfIn PDF document text
- https://lutafutenitar.weebly.com/uploads/1/3/4/3/134381418/gamezipalal.pdfIn PDF document text
- https://fazerirusabutef.weebly.com/uploads/1/3/1/3/131381144/nabaxip.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4405186/normal_6001ed4e37b62.pdfIn PDF document text
- https://nixalimug.weebly.com/uploads/1/3/2/6/132680811/52246a766c2b2.pdfIn PDF document text
- https://zajinepimasi.weebly.com/uploads/1/3/2/8/132815118/fidajeziv-wapuvawonilad-deliliduja-nivokedosu.pdfIn PDF document text
- https://wufodiwefoveve.weebly.com/uploads/1/3/4/8/134891768/7009c.pdfIn PDF document text
- https://mepurukog.weebly.com/uploads/1/3/5/3/135306658/pakun.pdfIn PDF document text
- http://nominasacra.ru/deck_eleven_railroads_mod_apk_revdl6sra1.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4401982/normal_6003802184a59.pdfIn PDF document text
- http://umniashka.ru/lavadora_lg_direct_drive_8.5_kg_manualrkqav.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4374371/normal_6018e877dc2c9.pdfIn PDF document text
- http://goodnaturak.space/disney_piano_duetslu4su.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://s3.amazonaws.com/xiwevitox/7452630286.pdfIn PDF document text
- https://s3.amazonaws.com/fekazudabo/book_lists_by_guided_reading_level.pdfIn PDF document text
- https://s3.amazonaws.com/zifozujiwi/bairavaa_video_songs_1080p_free.pdfIn PDF document text
- https://s3.amazonaws.com/suxugipipolazog/68305973573.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e594.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE594 | 5480 bytes |
SHA-256: 7fb61f3acbb2343d4eadeac96ed9bb70605d93b7bf984011135b373f43a6e3cc |
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font_01_sfnt_off0000f7f7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7F7 | 1800 bytes |
SHA-256: a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620 |
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font_02_sfnt_off00010084.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10084 | 12072 bytes |
SHA-256: 9bb83943fed5db727cc9c5bd3eb2a0f4f9f1bc928771ff726f3279d524a228e0 |
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font_03_sfnt_off000127f1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x127F1 | 4324 bytes |
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2 |
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