MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains an embedded JavaScript stream and numerous URLs pointing to compromised websites, many of which host further PDF files. This indicates a phishing or malware distribution attempt, likely using a link farm to obscure the true malicious destination. The ML classifier and ClamAV detection strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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://cructi.ru/uplcv?utm_term=keye+camera+app+for+android PDF link annotation
- https://excellencetogether.com/img/files/file/dovivosifiwenotetopib.pdfIn PDF document text
- http://hitechdentalhouston.com/uploads/files/36006398816.pdfIn PDF document text
- http://hotelalbicia.com/userfiles/file/vizedetaxafib.pdfIn PDF document text
- http://kaizousha.com/js/upload/files/kiruxoda.pdfIn PDF document text
- https://digireg.cn/upload/11520994782.pdfIn PDF document text
- https://tidymoney.com/ckfinder/userfiles/files/96103910667.pdfIn PDF document text
- http://duhochoangthanh.com/upload/files/33985011456.pdfIn PDF document text
- http://sushimura1.com/uploads/files/movuxonejurivasudid.pdfIn PDF document text
- http://papianiarch.it/userfiles/files/bejufamukofosor.pdfIn PDF document text
- http://witnesstherealist.com/wp-content/plugins/super-forms/uploads/php/files/27964c53d1efc7260d43507914bbf6b0/mavelarulitulagaw.pdfIn PDF document text
- http://xn----8sbnbd9chja.xn--p1ai/userfiles/file/50302405226.pdfIn PDF document text
- https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/7af0bf346248e16569943cca6911d541/82865303429.pdfIn PDF document text
- http://elliptical-trainers.ru/ckfinder/userfiles/files/jesogesinafenopow.pdfIn PDF document text
- https://jordan.si/dokumenti/file/93380820789.pdfIn PDF document text
- https://viajespereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/161364e468a285---wedolaniwazilopexometinig.pdfIn PDF document text
- http://abnicum.com/files/file/rekofelisalofafuj.pdfIn PDF document text
- http://zamdq.com/filespath/files/20210909085219.pdfIn PDF document text
- http://drironcat.com/images/file/89409409890.pdfIn PDF document text
- http://auksozvynas.lt/userfiles/file/76996338552.pdfIn PDF document text
- http://www.amedna.com/userfiles/files/14128030698.pdfIn PDF document text
- https://rajatotogroup4.com/contents/files/45899413496.pdfIn PDF document text
- https://digireg.org/upload/gotajolepimusuxafanaxi.pdfIn PDF document text
- 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_off0000d522.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD522 | 10572 bytes |
SHA-256: 9a0a853cf7fae2cc65ee0edda6c4d9892660f9d4545f2aaa6eb8e878d161fe67 |
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font_01_sfnt_off0000ed32.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED32 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010544.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10544 | 18648 bytes |
SHA-256: 67a6fea610c86de4a178eacf12b270250a4eb0ec901f07bacfb60b726f5d7c1a |
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