MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a large number of external links, many pointing to PDF files hosted on compromised WordPress sites. This suggests the document is designed to act as a link farm, potentially for SEO manipulation or to distribute further malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9840
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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://www.accidentinjurylascruces.com/wp-content/plugins/super-forms/uploads/php/files/i77h3aa0n6bi491eqa1gr0dctd/96165625815.pdf
- http://bannhuaduong.net/upload/files/64654072587.pdf
- http://beiwendq.com/userfiles/file/9559200886.pdf
- https://korovin.org/site/img_ufiles/tomoxifunu.pdf
- http://nikolabartakova.cz/files/file/zenapa.pdf
- https://www.budgetskemaet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1614a19ecd4b11---kajazeke.pdf
- https://www.ezhealthcheck.com/wp-content/plugins/super-forms/uploads/php/files/680ma56vqeolsqjd45kv8hvfgi/37658763712.pdf
- http://soncongnghiepjotun.com/media/ftp/file/14812353221.pdf
- http://sure2trips.com/bot/ckfinder/uf/files/zokijasu.pdf
- https://gea99.com/ckfinder/userfiles/files/lifido.pdf
- https://thucphamtruongxanh.com/Upload/files/52159822054.pdf
- http://cnc-soustruzeni.cz/files/file/49163945533.pdf
- http://versobrokers.eu/userfiles/files/wirojuvadutazegoje.pdf
- http://elisa5888.com/shopadmin/upload/files/6367824945.pdf
- http://pes.edu.mn/ckfinder/userfiles/files/45682072881.pdf
- http://suliaox.com/v15/Upload/file/202199135405865.pdf
- https://lawrenceyezersky.com/userfiles/file/gisel.pdf
- https://assurancemauricie.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f25a853e57---rubopabukuxuzulaxi.pdf
- https://www.theoakshealthcare.com/my_content/js/ckfinder/userfiles/files/7468310324.pdf
- https://idd.no/ckfinder/userfiles/files/38831020129.pdf
- https://idroilektriki.gr/files/file/80660926508.pdf
- http://odnoklassniki-files.ru/images/uploads/files/jukupagul.pdf
- http://www.itbaloch.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134b88da9785---xolujak.pdf
- http://border-collie.ru/sites/default/files/file/zitaputedisoxazezekenix.pdf
- https://footballsod.com/images/ck-uploads/files/bumiburejidonavubelazo.pdf
- https://www.casestilistas.es/ckfinder/userfiles/files/31704628472.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=mod+game+higgs+domino
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b3ad.bin1ff1825d9effd70999ec3f3d7a5dc8a681fa493e78fb0c321258e2f99c206d03 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB3AD | 17920 bytes |
font_01_sfnt_off0000e15e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE15E | 16792 bytes |
font_02_sfnt_off0000f975.bin8f9ba0a49aa37a5977acc3eb8a6b97a6ac2d8d6ad743f91eb4a248cdefd02a35 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF975 | 10444 bytes |
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