MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous external links, many pointing to compromised WordPress sites or disposable domains, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. The document's structure as a link farm, combined with the use of UTM parameters, points towards an effort to lure users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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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=mcculloch+v+maryland+case+brief+pdf PDF link annotation
- http://vom-ragnaroek.de/uploads/file/sozizavotazobekagumale.pdfIn PDF document text
- http://www.zulfugar.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160844f5d383c9---dolawukajumotajegeda.pdfIn PDF document text
- https://www.parkgest.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1607633bf283c6---jetizuzowoge.pdfIn PDF document text
- https://helicopterleasingservices.com/userfiles/files/vefatokipeniruzasotem.pdfIn PDF document text
- https://www.couleurs-et-jardin.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160f34774ecd6f---98098692811.pdfIn PDF document text
- https://hartwellcook.com/wp-content/plugins/super-forms/uploads/php/files/453dc4e2413c6c56ba3083f715c30f52/88405713635.pdfIn PDF document text
- http://hasici-pristroje-eshop.cz/files/file/91324184313.pdfIn PDF document text
- http://lncxjzxxw.com/upload_fck/file/2021-5-30/20210530112137932786.pdfIn PDF document text
- http://kuppersbusch-center.ru/uploads/files/64098441955.pdfIn PDF document text
- https://impariant-club.ru/wp-content/plugins/super-forms/uploads/php/files/964bf7ed0659b5df7d010967ad0ce2a4/72246617989.pdfIn PDF document text
- http://laconchigliacasevacanze.it/userfiles/files/73527916162.pdfIn PDF document text
- http://lblussana.it/images/file/kufefefamajira.pdfIn PDF document text
- http://heilpraxis-pankow.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607513607823b---38883941076.pdfIn PDF document text
- https://vinisfarm.com/wp-content/plugins/super-forms/uploads/php/files/57f5d843fba96f329f53a99299e5d4c1/sejiwojujo.pdfIn PDF document text
- http://trendstyleimage.com/uploads/ckfinder/userfiles/files/bozajodubik.pdfIn PDF document text
- http://profisystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160b673416c633---lalukuvise.pdfIn PDF document text
- https://www.rowtheerne.com/wp-content/plugins/super-forms/uploads/php/files/03ee0c2d7ce820ef0d5da4502318ef4e/37223592363.pdfIn PDF document text
- https://aimara-bg.com/userfiles/file/4953200136.pdfIn PDF document text
- http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1607628f837d66---64604976003.pdfIn PDF document text
- http://yogaschoolofkerala.com/photos/editor/files/vujerugoxumabefatazule.pdfIn PDF document text
- https://envomask.com/wp-content/plugins/super-forms/uploads/php/files/eff6d2c1d9c3faa5d44105ec8cefd539/rafifirofapoj.pdfIn PDF document text
- https://rakowka.pl/userfiles/file/36319121316.pdfIn PDF document text
- http://comp-art.ru/userfiles/file/95421619820.pdfIn PDF document text
- https://motelandratecuci.ro/userfiles/file/sirezafivodumam.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_off0000d0bd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD0BD | 11200 bytes |
SHA-256: 44d4c05e0551e849b25a7bda1e00ba3fc0514e4191064845505b22a603f97344 |
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font_01_sfnt_off0000ea89.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA89 | 17596 bytes |
SHA-256: 96aa7971c989d647b0fc1f92f120d70067d4affdcf97fde0ddd30cf49d5aa6f1 |
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font_02_sfnt_off00011875.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11875 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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