MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a large number of external URIs, many of which point to compromised CMS uploads or disposable hosting, indicating a link farm designed to distribute malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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://ketchas.ru/uplcv?utm_term=epicgames.com+redeem+vbuck+code
- http://langeline.com/ckeditor/upload/files/71564794870.pdf
- https://www.helpagesl.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609655d4c71b7---48729970597.pdf
- https://gulertrafik.com/wp-content/plugins/super-forms/uploads/php/files/r6b61r0cerrmko6t61n732bnl8/87009228345.pdf
- http://tantos.jp/js/upload/files/dokumov.pdf
- https://carthink.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608850e750302---13210268214.pdf
- https://comesa.com.pe/wp-content/plugins/super-forms/uploads/php/files/8pk2ag95mi0oekbkki1onk1295/labewusopulakipididiniw.pdf
- https://angkoronetour.com/userfiles/file/66115655240.pdf
- http://thriftstorewebsites.com/flash/thriftstorewebsites.com/file/85583018099.pdf
- https://palcev.ru/userfiles/file/20206755987.pdf
- https://www.etbsupplies.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c9a83e3e266---71000755475.pdf
- http://jamessham.com/admin/usercontent/file/kakal.pdf
- https://beruanglucu.com/contents//files/reditilosazurodufaziwamel.pdf
- https://goldenparadisestsimons.com/wp-content/plugins/super-forms/uploads/php/files/197c4798a6f3fba2d5f087a64c9180ed/66371425391.pdf
- https://cmetrix.net/ckfinder/userfiles/files/73562126695.pdf
- http://www.webtony.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16076e04718ab8---sobakefesidafofogir.pdf
- http://www.next-conseil.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160b336b6216fb---godoled.pdf
- http://writtenmail.com/upload_images/file/nixevumajosujasuxagid.pdf
- http://jarosi.hu/files/file/kuwezevuzefi.pdf
- http://www.uvhk.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b6665c14fd---dematu.pdf
- http://st-johnson.com/Uploadfiles/files/fubivorebofagakij.pdf
- https://susta.vn/userfiles/file/miviwufapoxef.pdf
- http://doanekeyes.com/userfiles/docs/jafifase.pdf
- https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087fa2254ad8---xumosub.pdf
- https://kvartira-zalog.ru/wp-content/plugins/super-forms/uploads/php/files/28b3e05b597c0d8356d2bfe214c26084/60980222823.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_off0000f33a.bina6e92fb181151b39749992b9170fd1c699717ea269dccf31661f82c07af78bbc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF33A | 11056 bytes |
font_01_sfnt_off00010ca0.bin2cc7f4445db5ba5d56df50b50d5d7c98c1af1c56037cefa7d0be04d2753e58d2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CA0 | 17816 bytes |
font_02_sfnt_off00013af5.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13AF5 | 16792 bytes |
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