MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is often used to download and execute further malicious content. Multiple heuristics indicate the PDF is part of a link farm designed to host or redirect to malicious files, with several URLs pointing to compromised CMS uploads or disposable hosting. ClamAV also detected this file as a phishing trojan.
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 https://catamma.ru/uplcv?utm_term=project+supervision+pdf
- http://assistance.uz/images/shared/file/5893605839.pdf
- https://www.northamericatalk.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c3990478f4c---52706888320.pdf
- http://bukhatirhomes.com/userfiles/file/56511438702.pdf
- http://bilmatbasim.com/userfiles/file/37117120563.pdf
- http://adimhukuk.com/resimler/files/fabigojasot.pdf
- https://greenturtleproductions.com.au/wp-content/plugins/super-forms/uploads/php/files/53b0c284e0563edd1581b3dc909742c9/zigusemidotesabixi.pdf
- https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160847b1988ea1---sibavugarojazopatusomevoj.pdf
- http://asustainable.com/global/file/sefapufukeraxu.pdf
- http://to-kajihan.net/js/upload/files/jojasuv.pdf
- http://congtydaihai.com/upload/files/guzivixidi.pdf
- https://siyata.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160b05877814ba---seforid.pdf
- https://gmonlinestore.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bf9139adf3d---minujijubixobojeru.pdf
- http://28777886.com/Lpf/UPFILE/userfiles/files/51859115755.pdf
- http://alpha-cp.com/userfiles/file/gitolar.pdf
- http://planetamama.ru/files/file/31634047132.pdf
- https://cyberbirddog.com/userfiles/files/kilanabamisaxuxudumowajos.pdf
- http://tktravel.shop/FileData/ckfinder/files/20210606_ADD600FBCEEAAA6E.pdf
- https://asharfilalkulfi.com/ckfinder/userfiles/files/13121389744.pdf
- http://www.urbanwaterways.info/files/55840637353.pdf
- http://acevina.com/webroot/img/files/39244272743.pdf
- https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/161179edc52287---85093103839.pdf
- https://takarasushimn.com/userfiles/files/xuzulivapasuwaze.pdf
- http://driver-jazda.pl/upload/file/39795785858.pdf
- https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606cd3f9c4924---nebonokeledapekuxumare.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_off0000d443.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD443 | 16792 bytes |
font_01_sfnt_off0000ec55.bin43e07869714250b940b61153b55bea43ad5802b4220073c1b730197dc64def5a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC55 | 16304 bytes |
font_02_sfnt_off000115ff.bin7d0ad546b7812a3c80ce08fff90fe4c6d5a1dbeca77a6565b703e2dcca40240b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x115FF | 10700 bytes |
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