MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous external links, with a critical heuristic identifying it as an SEO link farm and a high-severity heuristic flagging an image lure linking to an SEO redirector. The primary malicious URL identified is https://maypoin.ru/strik?utm_term=mcat+physics+equations+cheat+sheet, which is likely used for phishing or to serve a second-stage payload. ClamAV also detected this file as Pdf.Phishing.Trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
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://maypoin.ru/strik?utm_term=mcat+physics+equations+cheat+sheet PDF link annotation
- https://cdn-cms.f-static.net/uploads/4394079/normal_6052e07bf1c05.pdfIn PDF document text
- https://cdn.sqhk.co/kapudome/Dhjihgj/collaborative_learning_strategies.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4414689/normal_5ff036039e59c.pdfIn PDF document text
- https://tagasudinabasow.weebly.com/uploads/1/3/5/3/135325797/9effce4d529.pdfIn PDF document text
- https://cdn.sqhk.co/mapetidul/ghcIvii/rasigub.pdfIn PDF document text
- https://cdn.sqhk.co/xarozowuzosa/jdZB1hg/kobezupabul.pdfIn PDF document text
- https://cdn.sqhk.co/baxemazisod/dfjgcie/sanoluzatun.pdfIn PDF document text
- https://pimanubidaw.weebly.com/uploads/1/3/4/3/134353005/posesewila-biror.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4412584/normal_605939740db92.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4474727/normal_6050715e55628.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4472788/normal_60198751bad58.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4409000/normal_602442de9db13.pdfIn PDF document text
- https://cdn.sqhk.co/pixazizaze/AKibhcI/vesezozi.pdfIn PDF document text
- https://jisixeda.weebly.com/uploads/1/3/1/4/131409884/ff9886.pdfIn PDF document text
- https://vusowixaxepuw.weebly.com/uploads/1/3/1/3/131381533/ropila.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4421040/normal_60229af8da083.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4477913/normal_5fd21d5967a52.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/fidobakipivogit/how_many_chapters_are_in_harry_potter_book_6.pdfIn PDF document text
- https://s3.amazonaws.com/gadumagabusodel/13959107085.pdfIn PDF document text
- https://s3.amazonaws.com/nijudow/lonely_planet_guide_berlin.pdfIn PDF document text
- https://s3.amazonaws.com/midaguvimabof/mawerurebizokaxeve.pdfIn PDF document text
- https://s3.amazonaws.com/dukexajuj/tinemobu.pdfIn PDF document text
- https://s3.amazonaws.com/xixonu/63324758823.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_off0000eacc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEACC | 5124 bytes |
SHA-256: 2f495461b65846bac829a7854a2ca1cd8482a9eef18a48cdd1786ce60141d5ab |
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font_01_sfnt_off0000fc54.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC54 | 12268 bytes |
SHA-256: ce277e1fb90245ae427baa6a6e713b296838e424d56751b3e2039befe22957d9 |
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