MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains numerous links, many pointing to compromised WordPress sites, suggesting a phishing or malware distribution campaign. The ML classifier and ClamAV detection strongly indicate malicious intent. The primary attack pattern involves directing users to external, potentially malicious, websites through a link farm.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
Heuristics 6
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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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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://wastran.ru/uplcv?utm_term=electrical+and+electronic+measurements+and+instrumentation+by+ak+sawhney+pdf PDF link annotation
- https://www.simcoerecovery.net/wp-content/plugins/super-forms/uploads/php/files/q67hgqqu062jknemj51odv9gln/jibijidipilewigi.pdfIn PDF document text
- http://dioceseofniranam.org/userfiles/file/35491329855.pdfIn PDF document text
- http://quaint-house.com/dovubizerulamo.pdfIn PDF document text
- https://pluckywize.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608606c48a48f---josopujot.pdfIn PDF document text
- https://loskutova.site/wp-content/plugins/super-forms/uploads/php/files/115b1cc81c492ee1a3a5db149693ffff/22312925113.pdfIn PDF document text
- https://socialchangefactory.org/wp-content/plugins/super-forms/uploads/php/files/69c96b35cb350ba13ec0ae70a5046f2e/punada.pdfIn PDF document text
- https://www.uniqueartzz.com/wp-content/plugins/super-forms/uploads/php/files/n11rjitc0o9apes2f71c4otg7a/53846910802.pdfIn PDF document text
- http://www.melodypods.com/wp-content/plugins/formcraft/file-upload/server/content/files/160783b44617ea---2625426609.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bf82331a3e6---93237754992.pdfIn PDF document text
- https://deltagroup.bg/uploads/file/61886834664.pdfIn PDF document text
- http://triatlonbizuterie.cz/sites/default/files/file/5042707464.pdfIn PDF document text
- https://www.dyna-tech.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160845d22d8126---32912214971.pdfIn PDF document text
- http://kingcraftviet.com/uploads/ckfinder/files/87349057119.pdfIn PDF document text
- https://www.crossfitparamaribo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8f19fde2b8---mavilupefemipes.pdfIn PDF document text
- http://technocom.pl/editor/file/vegamusuko.pdfIn PDF document text
- http://lilit-realty.com/wp-content/plugins/super-forms/uploads/php/files/r13scmh9ucqujuf6epvuioqni1/6261524216.pdfIn PDF document text
- https://amesmedicalservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7d107143ad---filiwivu.pdfIn PDF document text
- http://automotiveenergy.cz/userfiles/file/37611912780.pdfIn PDF document text
- https://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/160804fecd26be---22879965412.pdfIn PDF document text
- https://jennysbooks.com/wp-content/plugins/super-forms/uploads/php/files/4c3223535347961f1767aeb415201999/nugetidugopigekowazile.pdfIn PDF document text
- https://smoothnomad.com/wp-content/plugins/super-forms/uploads/php/files/f5o3qgjgpm8n9opvnbckp73dsp/basidonanifewifewowite.pdfIn PDF document text
- https://celovechurch.org/wp-content/plugins/super-forms/uploads/php/files/d45787c5a86d28b6d2d3519889433fcb/82823801235.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_off0000bf92.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBF92 | 11400 bytes |
SHA-256: ff506636a2b058ef7ba09f7ff4f69df8a9e8813756221406844fc97ce668b427 |
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font_01_sfnt_off0000da1c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA1C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f22e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF22E | 16176 bytes |
SHA-256: bc90fea65a54e4cd19ac5970e9a60c0557c322088ca74949d083ea8eaed25dbb |
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