MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and multiple external URIs, indicating malicious intent. The ML classifier and ClamAV detection strongly suggest this is a malicious PDF, likely used for phishing or distributing further malware. The presence of numerous links on disposable hosting points towards a link farm used to obscure the ultimate destination or to host multiple lures.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://coretry.ru/uplcv?utm_term=formula+of+completing+square PDF link annotation
- http://gerd-pollak.de/userfiles/file/nejajuzutuwijixero.pdfIn PDF document text
- https://lisacutler.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613bd86604642---tivefagusefoxejilunof.pdfIn PDF document text
- http://sbstroy53.ru/img/files/zufinanenebo.pdfIn PDF document text
- http://machi-tomo.xyz/js/ckfinder/userfiles/files/numijekudafinigoxujasowir.pdfIn PDF document text
- http://chizclean.ru/files/fck/file/85458604426.pdfIn PDF document text
- https://terminarz.online/kosmetyczka/krakow/files/59723863205.pdfIn PDF document text
- https://pet-fashion.ro/mm/file/80973078805.pdfIn PDF document text
- https://keralatemples.info/ckfinder/userfiles/files/kewidiludunarodogi.pdfIn PDF document text
- https://spbmworld.com/anaeter_capital/siteadmin/userfiles/files/35079150429.pdfIn PDF document text
- http://caratow.nl/userfiles/file/29883659301.pdfIn PDF document text
- http://www.dadosefatos.net.br/wp-content/plugins/formcraft/file-upload/server/content/files/161306b6861bb7---57426295712.pdfIn PDF document text
- http://wingprocess.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/regomafegabufosopepipinod.pdfIn PDF document text
- http://www.temaricerca.com/entry2013/admin/ckfinder/userfiles/files/lujuzunadirijawimokidesof.pdfIn PDF document text
- https://www.champagne-auge-dascier.com/ckfinder/userfiles/files/70501290605.pdfIn PDF document text
- https://lawyerupsmart.com/tempimg/file/28588389850.pdfIn PDF document text
- https://ruxthai.com/ckfinder/userfiles/files/73210781972.pdfIn PDF document text
- https://polaria.cz/images/file/xosejavufamefalawugik.pdfIn PDF document text
- http://rewitex.pl/userfiles/file/71022837689.pdfIn PDF document text
- http://konstruktor33.ru/app/webroot/files/files/vajukevopabexizeniwamiwad.pdfIn PDF document text
- https://foursservices.com/nbloom/fckuploads/file/wotebexizikad.pdfIn PDF document text
- http://frutapac.es/ckfinder/userfiles/files/64354584033.pdfIn PDF document text
- http://hylimusic.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/niwalitilefefegasapufozut.pdfIn PDF document text
- https://najlepsze-w-polsce.pl/uploads/76137518241.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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ca5d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA5D | 17660 bytes |
SHA-256: 95dc32831cb0dfcec7341fdb7c32d92eba07915445138238ffe16f3be8daa65b |
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font_01_sfnt_off0000f858.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF858 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001106f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1106F | 11044 bytes |
SHA-256: dd233f1e32e6e51f687eeaecff6a9fcb19a49df38403c5733085c854e72fee34 |
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