MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains an embedded JavaScript stream and numerous external URIs, many of which point to compromised CMS uploads or disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution through these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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 http://www.eurosecurimed.com/ckfinder/userfiles/files/keripavad.pdf In PDF document text
- http://chpcentre.com/files/file/nizoguzogesopafap.pdfIn PDF document text
- https://southtours.com/wp-content/plugins/super-forms/uploads/php/files/gtp0464jjd0tr0m701agrju5t7/74202264013.pdfIn PDF document text
- https://www.hdontheroadnapoli.it/wp-content/plugins/formcraft/file-upload/server/content/files/160776bea691e8---83931755267.pdfIn PDF document text
- http://tlumacz-lipno.pl/pdrzewiecki/files/55639784669.pdfIn PDF document text
- http://gps-ambroisie.com/ressource/site-image/files/mugerugixilapemawixaguze.pdfIn PDF document text
- https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611629671f0cf---37511459954.pdfIn PDF document text
- https://aronabritcan.com/userfiles/file/vagedikowig.pdfIn PDF document text
- http://azizolace.cz/images/file/sivodaponasolapexagivaje.pdfIn PDF document text
- https://residenciasanamaro.es/userfiles/files/kejufebuxalupam.pdfIn PDF document text
- https://xn--1--8kcai1ck2bs.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/da5bc221c6a6af495a059d6d319072c8/61619933583.pdfIn PDF document text
- https://lostsoulsmemorialnj.org/wp-content/plugins/super-forms/uploads/php/files/077052dbfc42535e8a3ffbe460f4d361/zedawutamorogaravuvubake.pdfIn PDF document text
- http://spiregene.com/image/files/20210721_182559.pdfIn PDF document text
- https://www.sabiamente.es/wp-content/plugins/formcraft/file-upload/server/content/files/160fb8dafe299b---vexisefuxe.pdfIn PDF document text
- http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608365b333975---923867413.pdfIn PDF document text
- https://proxus.nl/file/53319459049.pdfIn PDF document text
- https://www.grecosalesinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/160977e5df0da8---4641955131.pdfIn PDF document text
- https://cpc-serbia.org/js//files/55865018746.pdfIn PDF document text
- http://www.movingintofreedom.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606fcafc494d5---gepagivofewakasizoxuberad.pdfIn PDF document text
- https://kassa-evotor.ru/wp-content/plugins/super-forms/uploads/php/files/2siglbc2iamimp9qq14d8lkoek/sukafekudapapewet.pdfIn PDF document text
- https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f6522205de2---keratawuwoser.pdfIn PDF document text
- http://xn--e1aazeoc7d.xn--p1ai/images/shared/file/muxama.pdfIn PDF document text
- https://an-professional.ru/img/files/file/zosefujazewaverifabelavu.pdfIn PDF document text
- https://www.sodigital.it/wp-content/plugins/formcraft/file-upload/server/content/files/16094df7b4d78a---91047547816.pdfIn PDF document text
- https://hophamthaibinh.com/upload/files/napafinuruzufejip.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=mathematical+physics+books+arfken+pdfPDF link annotation
- 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_off0000c5c9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC5C9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000dde0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDDE0 | 11224 bytes |
SHA-256: fca9e5c9608c1d54ae90217fe945251ed9c54d9f79294983e0be0a8342d06576 |
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font_02_sfnt_off0000f7ca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7CA | 16472 bytes |
SHA-256: 4bf0f5d142d37914345696226081ebb61b5706b5cc2b60227377dd5e696da9ef |
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