MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised CMS upload storage or disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or distributing further malware. The embedded JavaScript is a common technique for exploiting PDF vulnerabilities or initiating malicious actions.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
Heuristics 7
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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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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://infrive.ru/uplcv?utm_term=watch+hannah+and+her+sisters+online+free
- http://studioschicchi.eu/userfiles/files/55589472224.pdf
- http://gf-location.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16130029a8d4ba---jugetinapobozixifimabel.pdf
- http://joy05.com/_UploadFile/Images/file/94013774268.pdf
- https://www.theoakshealthcare.com/my_content/js/ckfinder/userfiles/files/65057417662.pdf
- https://poolpoint.be/uploads/file/89335164921.pdf
- https://shinyjewellers.com/wp-content/plugins/super-forms/uploads/php/files/0mne3v2ueba2d32spm4urs5l81/nedofisefevikorejerazabux.pdf
- http://cbestdesign.com/ckfinder/images_store/files/45383796743.pdf
- https://begili.com/uploads/image/files/96896589307.pdf
- https://eastoncn.housemember.com/uploads/files/wenex.pdf
- http://businesslegalgroup.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/wiselipijesixu.pdf
- http://szyoujin.com/UploadFile/file/20210907160759931.pdf
- http://qazaqbanki.kz/data/content/files/favasakuziwu.pdf
- http://triple-a.co.th/ckfinder/userfiles/files/wirip.pdf
- https://maydongy.com/wp-content/plugins/super-forms/uploads/php/files/q9rqrpt3pqnibhha7d989bva2j/91623345337.pdf
- https://fiberglasssupplydepot.com/userfiles/files/59825284725.pdf
- https://eventaipei.com/upload/files/dunewibefab.pdf
- http://pn-tech.net/userData/board/file/jowuxedejononizoroxariw.pdf
- https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/af29d92b1d15980fd628cca165d66d55/damamulekolepugidowom.pdf
- https://festacontinua.it/public/file/wifejanupu.pdf
- http://sobateracota.ro/mm/file/fafeguv.pdf
- https://specializedfacilitymgt.com/public_html/userfiles/file/naxub.pdf
- http://rasmesafar.net/basefile/basefiles/44374228195.pdf
- http://aimic.com/userfiles/file/gebasone.pdf
- https://drakbera.com/ckeditor/ckfinder/userfiles/files/rojuxalurorowikidalirumag.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_off0000d740.binc206766c7ccee87555cb80e226cfca1be7ed0d0e7cb7bda09f5344269be2f3ad |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD740 | 10568 bytes |
font_01_sfnt_off0000ef52.binf94bfbde02f51e1a8e1e682ee6068e9e5ad0251a26cc050d016cf4f6a6a00067 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF52 | 17844 bytes |
font_02_sfnt_off00011d6f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D6F | 16792 bytes |
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