MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external links, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm or phishing attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to redirect users to malicious content or phishing pages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://wwstationery.com/files/file/23814997000.pdf
- https://lorenzonimmigrationlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141f618a33ca---25468478452.pdf
- http://kajo-frings.de/userfiles/file/23711122292.pdf
- http://mayjack.com/upload/files/makilagiturutuguluj.pdf
- https://alsultantrading.ae/userfiles/files/vunatoruxebuwipe.pdf
- https://webhostmurah.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a9f76ed311---69771368986.pdf
- https://guenangequitation.fr/www/site/js/ckfinder/userfiles/files/98296528553.pdf
- https://k9-warrior.com/wp-content/plugins/super-forms/uploads/php/files/kgaj7p00nv56bs9umumkimao28/saniwaku.pdf
- http://maivietnamesecotati.com/uploads/files/zumobavo.pdf
- http://metallpress.ru/files/211344394.pdf
- https://bloomeng.com/uploads/62404105072.pdf
- https://kme.pl/global/app/webroot/uploads/file/16305030404943.pdf
- https://muguet.fr/sites/default/files/file/51426816177.pdf
- http://elvirajogsi.hu/ckfinder/userfiles/files/62201482571.pdf
- http://ihanzao.com/userfiles/file/20210923052050_1259624506.pdf
- https://ildiko-szepsegszalon.hu/userfiles/file/wuxepegiluzovoduxobuwa.pdf
- https://www.aicsmindia.org/ckfinder/userfiles/files/nerexenofebu.pdf
- http://indiebookoftheday.com/wp-content/plugins/formcraft/file-upload/server/content/files/16143323967dd0---feginulos.pdf
- https://adverto.ee/userfiles/file/xijuvojoponelus.pdf
- http://cocoal.com/uploads/file/64283688516.pdf
- https://www.bevillelecomte.com/ckfinder/userfiles/files/4865259.pdf
- https://amatnieks.com/pictures/image/37900329624.pdf
- http://okna-stv.ru/userfiles/files/47858765893.pdf
- https://tsegypt.com/file/puriwadefeduzinuvegejo.pdf
- http://sjar-tech.com/uploadfile/file///2021091414121834.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=gone+michael+grant+pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d343.binbd3bc5983d6f54b5ad45ce7966c0e61b1d2445be84dcb2baad15a921679aa830 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD343 | 10940 bytes |
font_01_sfnt_off0000ec29.bin96ab193eab7a5d73171ed3e783cf6eb1611f35390d4c9f9fa6a32d5639d6ff8b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC29 | 19276 bytes |
font_02_sfnt_off00011e7f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E7F | 16792 bytes |
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