MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a large number of external URIs, many of which point to compromised CMS uploads or disposable hosting, indicating a likely phishing or malicious redirection scheme. The ClamAV detection and ML classifier strongly suggest malicious intent, possibly to download further payloads or lead users to fraudulent sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9972
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://pistant.ru/uplcv?utm_term=cuidados+despues+de+una+cirugia+de+hernia+inguinal+en+ni%C3%B1os
- http://szakkepzosiklos.hu/upload/file/fabedadofurewagedud.pdf
- https://delaneyllc.com/ckfinder/userfiles/files/91126619591.pdf
- http://beulahcooleycollection.com/clients/870349/File/53894607395.pdf
- https://anukulagrotech.com/userfiles/file/kewirenepafetegitug.pdf
- http://naturestuff.nl/siteimages/file/romemibewivifitudori.pdf
- https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d3849996b8c---tikebixasebowefo.pdf
- http://ganan10.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1610d0c8f5714a---fapufasigixixas.pdf
- http://alternativefitness.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607c4d185003f---zatojixinijopujogizu.pdf
- http://maasmartcity.com/userfiles/file/zuroninigurebodi.pdf
- http://concilianavarra.com/userfiles/files/powobukavamibaru.pdf
- http://abnicum.com/files/file/17929155662.pdf
- https://getlovebooks.com/wp-content/plugins/super-forms/uploads/php/files/ebabe73786ddca3634e4851b221bd6d0/85934073321.pdf
- https://cvenhancer.com/wp-content/plugins/super-forms/uploads/php/files/7f7264e1d42880fe6d8e1a2cc6809bf3/30039997286.pdf
- http://fainitelecommunication.com/public/editorfiles/file/dijixi.pdf
- https://guenangequitation.fr/www/site/js/ckfinder/userfiles/files/42856291482.pdf
- http://proxima-design.cz/files/file/60532379833.pdf
- https://rescue.bg/wp-content/plugins/formcraft/file-upload/server/content/files/16090e431401ce---pavaju.pdf
- http://studiogiovannone.com/userfiles/files/gunixovepazebuxobi.pdf
- http://seoulgreeter.com/userData/board/file/gawore.pdf
- https://perleyparish.org/wp-content/plugins/super-forms/uploads/php/files/ef5ec7e9826fe93af107cecbe5e65bb5/vofomu.pdf
- https://kakvkusno26.ru/wp-content/plugins/super-forms/uploads/php/files/2515d52505b7adaa9f7cbf61d4bf2212/9955135148.pdf
- https://daluxerealty.com/wp-content/plugins/super-forms/uploads/php/files/q6aco0ar9itp8cjquipiteeav4/sumupiminulasulabem.pdf
- http://www.hollyskauaicondo.com/wp-content/plugins/formcraft/file-upload/server/content/files/161085009f1b8d---5879549249.pdf
- http://trungnguyenjsc.vn/uploads/image/files/pezuwagusizu.pdf
- 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_off0000f031.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF031 | 16792 bytes |
font_01_sfnt_off00010848.binc508fedd485092b2dc87f7549d7dcce5bb9995b29ce71424b71efa77b02bde9a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10848 | 11032 bytes |
font_02_sfnt_off00012169.bin8b665941317dcb2b5721180d6aa23a587065cbd738d44a8b78d1c622bd544890 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12169 | 17500 bytes |
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