MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample contains embedded JavaScript, which is often used to redirect users to malicious websites or download further payloads. Several heuristics indicate the PDF is part of a link farm hosted on compromised or disposable domains, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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.lavalledesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071cae9b57e4---tetanupaxevomitolexumok.pdf In PDF document text
- http://pvsystreports.com/wp-content/plugins/super-forms/uploads/php/files/ef5jibskj4kha4rsg59qsik0h0/25506074384.pdfIn PDF document text
- http://radtel-sport.pl/userfiles/file/67953354337.pdfIn PDF document text
- https://www.alphaveneers.com/wp-content/plugins/super-forms/uploads/php/files/b3ebb4b1ec584c768dce9f9b3f6bf219/linidusikaran.pdfIn PDF document text
- http://luingpyrex.cz/foto/Image/file/51473885501.pdfIn PDF document text
- https://butagallery.com/userfiles/files/sufubuwexebevogebowekives.pdfIn PDF document text
- http://fishtech.org/uploads/userfiles/file/file/26174131202.pdfIn PDF document text
- http://rracc.com/file_media/file_image/file/7549285379.pdfIn PDF document text
- https://finestblogger.de/wp-content/plugins/super-forms/uploads/php/files/rhu4qmusbmmje1b5q81d4rmmpa/68416774449.pdfIn PDF document text
- https://www.alarisusallc.com/wp-content/plugins/super-forms/uploads/php/files/b7248fca0ae5f401d3d850a0d7b015a4/12396329423.pdfIn PDF document text
- http://stsaischoolamritsar.com/slbdavbatala/userfiles/file/94991057189.pdfIn PDF document text
- https://brunoamaranti.it/wp-content/plugins/super-forms/uploads/php/files/sdnvlhedroikgc1uq1kqcp9bu7/xolinoxiruxivakebigurox.pdfIn PDF document text
- http://pc75.net/upfiles/file/1626457604.pdfIn PDF document text
- https://xlspandoek.nl/userfiles/file/36752791174.pdfIn PDF document text
- http://technoauto.jp/js/upload/files/rebule.pdfIn PDF document text
- https://phunhai.net/upload/files/728513886.pdfIn PDF document text
- https://pousadamarazul.tur.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608691c1cd6cd---85679360645.pdfIn PDF document text
- http://cana.vn/uploads/userfiles/file/80262082900.pdfIn PDF document text
- https://protradingindia.net/userfiles/file/97971192635.pdfIn PDF document text
- http://iwilldoit.ru/uploads/files/files/porunulonimix.pdfIn PDF document text
- https://segurosjdd.com/wp-content/plugins/super-forms/uploads/php/files/7krla4u7dcc9kop9cqr04ofqa4/4074066634.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=companies+act+1956+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_off0000de7f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE7F | 17784 bytes |
SHA-256: 831cfe86f5c79ef6c1060f3232a39eb8212a7af9583d670a7b460bcff1507294 |
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font_01_sfnt_off00010c3c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C3C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012453.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12453 | 11188 bytes |
SHA-256: 3520578273e6b520d4a1acce2c178569f047dd959d6da930a2900e237550918d |
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