MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous external links, many pointing to compromised WordPress sites, suggesting a phishing or link-farming campaign. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious document, likely intended to redirect users to malicious sites for further exploitation.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
Heuristics 6
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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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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://cructi.ru/uplcv?utm_term=let%27s+fall+in+love+for+the+night+ukulele
- https://gresathouse.com/wp-content/plugins/super-forms/uploads/php/files/9e6d6779010072a80a2eecfd7b868132/99196897484.pdf
- http://for-rent-aalst.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608078f932ac2---ragamofewinotedaxaje.pdf
- http://qiangka.com/ckfinder/userfiles/files/pikikuf.pdf
- https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092868cb9b7a---xejibavewaf.pdf
- https://useoneconvo.com/wp-content/plugins/super-forms/uploads/php/files/40e833552916edaea8382623c80a8e04/garupamapowitaputi.pdf
- https://kodcomputers.ro/2664/uploads/37061559563.pdf
- https://www.fecomerciomg.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/16089522dc3afc---63348830379.pdf
- http://amirafouad.com/uploaded_files/file/7868044929.pdf
- http://fipjp.com/userfiles/file/xuzupujizuje.pdf
- https://www.andyselfstorage.co.uk/wp-content/plugins/super-forms/uploads/php/files/045edb7f2miv9auf40spkvvdo0/11908842969.pdf
- http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/dsq6nl7pkj1p2140ii1tflaeo4/kovugipi.pdf
- https://sbufficio.it/file/65462960625.pdf
- https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/slph1nc9ok0bhfc3vq27pfaaf0/sutowizifutamukekasamun.pdf
- http://xn--h49avwqct32ewe967crscpsaz7d.com/ckupload/files/tewewiv.pdf
- http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/cid2ut0f3qruc6oglnm54f1md5/tamojep.pdf
- http://mooneyes.pl/userfiles/file/64284812800.pdf
- https://dacoma.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160842a46bc496---lomutobetazopuzero.pdf
- http://doktor-okonski.pl/uploadimg/file/bisoxidijalomepivibefevu.pdf
- https://detmers-kontejner.hr/files/96815789607.pdf
- https://swimproject.eu/wp-content/plugins/super-forms/uploads/php/files/2f7a108aa8e4c57edb345d48a7dbde6c/65633654726.pdf
- https://www.lipfish.no/wp-content/plugins/formcraft/file-upload/server/content/files/160a37b9268ae8---43631446935.pdf
- https://earplighting.com/wp-content/plugins/super-forms/uploads/php/files/282dfb477ff5d32a28540555feb8dcd2/ripuzutilufuxama.pdf
- http://augustaelectricalwork.com/editorData/file/74368360657.pdf
- http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/160af922509bb3---jepikixoxixaf.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ef15.bin2d14e9faa7320fbc4e71221d3b14fc31b78d6e4564f9fd1eed175aa0d74b9286 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF15 | 17064 bytes |
font_01_sfnt_off00011b7e.bin45f622e89aa9e1a20e86360016fd51c405d8ec34e4777b951bf46ed0c66521c0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B7E | 1860 bytes |
font_02_sfnt_off0001243b.bin8371242425c892f2d36be41e31eaa04fd45752ae3692640a1d24978163591d55 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1243B | 10740 bytes |
font_03_sfnt_off00013cf6.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13CF6 | 16792 bytes |
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