MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a significant number of external links, many pointing to disposable hosting or compromised WordPress sites, suggesting a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://instalace-charvat.cz/userfiles/file/17736812500.pdf In PDF document text
- https://sadhankendra.org/erc/media/litemorege.pdfIn PDF document text
- http://metamorfozyayincilik.com/userfiles/file/3129503550.pdfIn PDF document text
- http://park-seversk.ru/other/js/ckfinder/userfiles/files/21981503972.pdfIn PDF document text
- https://fortworthdental.net/cmsCart/upload/file/pawepuniza.pdfIn PDF document text
- https://www.burit.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613012142dfed---pafepoxerekujeweki.pdfIn PDF document text
- http://spbmedaks.ru/sites/default/files/uploads/vifebakilalozelen.pdfIn PDF document text
- https://sindicav.com.br/ckeditor/ckfinder/userfiles/files/31968430324.pdfIn PDF document text
- http://argentum.com/wp-content/plugins/super-forms/uploads/php/files/lfgg91319n3ak8aijolu6v9q4u/nuputuxejasu.pdfIn PDF document text
- https://www.bmo-agencement.fr/ckfinder/userfiles/files/54103514873.pdfIn PDF document text
- http://northmarking.com/userfiles/files/lotazepobovavofiz.pdfIn PDF document text
- http://jungvassar.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/35149689861.pdfIn PDF document text
- http://etabetasurvey.com/userfiles/files/nuweluzerem.pdfIn PDF document text
- http://htwy.com/upload/file/vomegexokix.pdfIn PDF document text
- http://e2ingenieros.com/ckfinder/userfiles/files/wojuragibozatupe.pdfIn PDF document text
- http://worldprint.su/userfiles/file/26709959569.pdfIn PDF document text
- https://best-turbos.com/wp-content/plugins/super-forms/uploads/php/files/36beefc016377341da7a4f71a8f90088/30807746936.pdfIn PDF document text
- http://shipagents.nl/uploadfiles/file/jasobepodi.pdfIn PDF document text
- http://firegallery.ru/img/upload/masozazun.pdfIn PDF document text
- http://www.ssc-ras.ru/ckfinder/userfiles/files/kinixatajovamatij.pdfIn PDF document text
- https://edusfera.pl/upload/file/xidodawenaliwejapago.pdfIn PDF document text
- http://wonderpanel.com/app/webroot/img/file/lodatobagesomeduje.pdfIn PDF document text
- http://3e-machinery.ru/app/webroot/filesfiles/50035049858.pdfIn PDF document text
- https://martensmgt.com/business_school/uploads/file/jorezavofavejabalugolazov.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=mp3+converter+download+for+androidPDF 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_off0000bf18.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBF18 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d72f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD72F | 10764 bytes |
SHA-256: 28a95834405c281727debb108489633e62034e04707fc62dc761aa9307ee92d5 |
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font_02_sfnt_off0000f021.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF021 | 16212 bytes |
SHA-256: f3a225ce67499df872650a842afb9c23803834adf1ec50ce72efca1f444f1a7c |
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