MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains embedded JavaScript and multiple links to external PDF files hosted on compromised websites, indicating a phishing or malware distribution attempt. The 'SE_BROWSER_INSTALL_LURE' heuristic strongly suggests the document's purpose is to trick the user into installing a fake browser update or extension. The ML classifier and ClamAV detection further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9827
Heuristics 8
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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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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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://dacoma.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16131a43f7e249---46717952886.pdf
- http://nitexprofi.cz/userfiles/file/40385572153.pdf
- https://pinpointfeedtech.com/ckfinder/userfiles/files/46942626498.pdf
- https://melz-feu.ru/upload/novugireno.pdf
- http://www.benyowsky.com/resources/files/4012393068.pdf
- https://ntiverification.com/userfiles/file/tusobenonekemagapegono.pdf
- http://www.medicalalliedtraining.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135ca7f3f889---83729745733.pdf
- https://www.phoenixdentalacademy.co.uk/wp-content/plugins/super-forms/uploads/php/files/6478ed2db734f3aa3bf1126aeafd6aa5/76800525354.pdf
- http://ourdesign.hk/ckfinder/userfiles/files/vizer.pdf
- https://korzayithalat.com/spot/admin/fckeditor/userfiles/file/tobefewinorinezise.pdf
- https://dongytueduc.com/wp-content/plugins/super-forms/uploads/php/files/natf77mq4oe65ivdb6pfmscaf7/68822439521.pdf
- http://le-lemniscus-incandescent.fr/ckeditor/upload/files/sowobetudes.pdf
- http://www.azurwelcomeservices.com/userfiles/file/nopuzadujemizurowuzix.pdf
- http://marsalanoleggio.it/userfiles/files/45995272993.pdf
- http://www.radioemka.com/wp-content/plugins/formcraft/file-upload/server/content/files/161402e86a9c73---sifuxipu.pdf
- http://xn--h49al71atridzo.com/userData/board/file/38869564898.pdf
- https://xrtradingfeedback.com/cmsimages/file/29908313712.pdf
- http://9meclinic.com/ckfinder/userfiles/files/9536764292.pdf
- http://candleelectricals.com/uploaded_files/userfiles/files/52645759027.pdf
- https://thepetrichortouch.com/wp-content/plugins/super-forms/uploads/php/files/dgia87n9b4hspogrjvke3n5ugc/salisajufozemo.pdf
- http://juditphotography.com/picture/userfiles/file/jelometujejele.pdf
- http://qdjshg.com/files/file/bolekabixogovekixoko.pdf
- http://hefei.chinatupai.com/web/js/ckfinder/userfiles/files/kusexorofawate.pdf
- https://gencerenerji.com/resimler/files/tiwuzulugige.pdf
- http://valkexclusief.reviews/app/webroot/files/userfiles/files/viwuzizibita.pdf
- https://sjamsul-hidajat.id/ck_uploads/uploads/files/rapedakov.pdf
- https://www.ikedatosou.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133d8ddf0d12---xoxetupotigine.pdf
- https://jin-hung.com/userfiles/file/fiwepa.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=need+notification+access+permission
- 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_off0000cbb2.bind150d0f70c7637737d9984ba13505dd03ba24324986cc8aee9da8f93cc62d2ed |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCBB2 | 10712 bytes |
font_01_sfnt_off0000e44e.bin99c616cd07dfbdb70eb78e1ef66d7d45cd75496073b833a837f624cb30daf860 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE44E | 17568 bytes |
font_02_sfnt_off000111a0.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111A0 | 16792 bytes |
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