MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised WordPress sites hosting further malicious PDFs. This indicates a link farm designed to redirect users to potentially harmful content, likely for phishing or malware distribution. The ClamAV detection and ML classifier further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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://patriot.ch/wp-content/plugins/super-forms/uploads/php/files/sd1350vrito743a8vbehjuj0ou/74271752811.pdf
- http://wrhs1967.org/clients/6/61/617565fc8afb9cc6d18abf932d248b7a/File/19940910537.pdf
- https://www.hit-education.com/wp-content/plugins/super-forms/uploads/php/files/kkiqr09pa0rme8j6he058buah4/62939043853.pdf
- http://maidnheaven.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d36b0a334d---bexit.pdf
- https://aduanaldelvalle.com/userfiles/file/webepuwukakikuzemu.pdf
- https://alcoolassistance-creuse.net/www/site/js/ckfinder/userfiles/files/vusagudexew.pdf
- http://china-engine.net/ckfinder/userfiles/files/vibutul.pdf
- https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/03a0f5a6f50436a9452efcf4ad11501e/95913780948.pdf
- http://dmn.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16081bdab02c21---wozofuwipikorixazogakawip.pdf
- https://benchmarktransitions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160abdbb3ec8f2---2173676942.pdf
- https://trichynext.com/wp-content/plugins/super-forms/uploads/php/files/db448f6b6df0e4da8967da584599d6c3/72239876905.pdf
- http://fsgpj.com/upfolder/e/files/20210628103337.pdf
- https://travelsafeway.com/userfiles/file/doveru.pdf
- https://notofthisgalaxy.com/wp-content/plugins/super-forms/uploads/php/files/ma6igeeltc37qq8t9bfsa88qlq/2667051343.pdf
- http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/1607ed6c158a90---ligoxonezatero.pdf
- http://www.adanakursmerkezi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607758ff2f3df---51879854255.pdf
- http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608a41e1ccb94---sadegukoxutomibukizifima.pdf
- http://www.hydro-tg.pro/upload/file/41217212119.pdf
- http://proreferee.ru/uploads/ckfinder/files/dupafu.pdf
- https://mandalaconfeccao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16076a58cc1fe9---39576506103.pdf
- http://spc1991.com/ckfinder/userfiles/files/zadolikodavojojetetu.pdf
- http://webscape.co.bw/wp-content/plugins/formcraft/file-upload/server/content/files/16094a4ea71a44---xibawada.pdf
- https://motionslam.com/wp-content/plugins/super-forms/uploads/php/files/7b1064625d676384ce913ada669d7ad8/45037383646.pdf
- http://rana-international.com/userfiles/files/5241399576.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=tall+tales+bait+and+tackle
- 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_off0000d39f.bin8a1ae205e27b537c1f504036d023e407629bcca3dede3060fdc37a827d485f05 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD39F | 17528 bytes |
font_01_sfnt_off0001016a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1016A | 16792 bytes |
font_02_sfnt_off00011981.binda5e4b356190bdbdd848a4a970d8d60823c1e310dd4c92260020aa1ed5a0045d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11981 | 10340 bytes |
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