MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs pointing to compromised websites and disposable hosting, indicative of a link farm designed to lure users to malicious content. Heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' strongly suggest this malicious intent. The ML classifier and ClamAV detection further confirm the malicious nature of the file.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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://coretry.ru/uplcv?utm_term=dr+subrata+bhowmick+nephrologist
- http://bantinnhadat.com/users/files/tuxefofujetuxuwaxe.pdf
- http://nceed.kr/pds/userfiles/files/67259013542.pdf
- http://kalmi.ru/upfiles/files/wijejobutu.pdf
- http://podhoru.cz/userfiles/file/madefajonotepevaxuro.pdf
- http://villabrown.it/userfiles/files/kanekijobepuna.pdf
- http://stickerbarcode.com/file_media/file_image/file/23153935424.pdf
- https://esofagopisa.it/userfiles/file/xugix.pdf
- http://kliknetezde.cz/admin/obrazky/file/93309522094.pdf
- https://km2804.com/ckupload/files/1960292438.pdf
- https://vdbergelectro.nl/wp-content/plugins/super-forms/uploads/php/files/ea407717aa8a80d231432dfa57880bb5/jexeg.pdf
- http://totalfinance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16156b06899bc0---52760762141.pdf
- http://www.putnamtaxi.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613a16e492d8d---paxakoraverojilagonelap.pdf
- http://mijn-nederland.nl/userfiles/file/wigijamatakipojorigi.pdf
- http://elcolono.net/userfiles/files/76794210467.pdf
- http://mountmedpharmacy.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16155bb8d7fc8e---21942673393.pdf
- https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16131158b858fa---43060448952.pdf
- https://kantankacreative.com/wp-content/plugins/super-forms/uploads/php/files/3505dd5261d02858fe60dd92f7e5665e/nejodisumojuzomopamo.pdf
- https://bentzendesign.se/wp-content/plugins/formcraft/file-upload/server/content/files/1615163d88da2b---65500490229.pdf
- https://www.isnb.co.uk/wp-content/plugins/super-forms/uploads/php/files/5a7db4bc1db195948e45a1b7e545bb26/61417772555.pdf
- http://nhasachnguyenvancu.com/Images_upload/files/94883477792.pdf
- https://xnkvinatimex.com/uploads/files/15595532995.pdf
- http://pepinieres-soupe.com/userfiles/file/30636812026.pdf
- http://ferramentabelleggia.it/public/file/gitigafigobitawimidojafex.pdf
- https://www.lsv-wittlage.de/ckfinder/userfiles/files/49252982501.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_off0000ca8a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA8A | 16792 bytes |
font_01_sfnt_off0000e29c.bin58e4a77b2acb97f12138b785c2952a7c41e5c736d7ca57b879dfc9d5841d596b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE29C | 18436 bytes |
font_02_sfnt_off0001122b.bin458326903013dfe2eb43787ea51b7ee913a5864063ed8c9cd2e47ca1c802cb67 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1122B | 11240 bytes |
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