MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a link farm pointing to multiple compromised WordPress sites, which in turn host other PDFs. The ML classifier strongly indicated maliciousness, and the structure suggests a tactic to lure users to malicious content, potentially for phishing or malware distribution. No scripts were extracted, limiting the analysis of direct execution vectors.
Machine Learning
- Nyx PDF Classifier malicious score 0.9867
Heuristics 5
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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://sellos-mecanicos.com/wp-content/plugins/super-forms/uploads/php/files/fbe504a4a7f042dd1573ab0a50761261/roreg.pdf
- http://abpaluso.com/upload/file/bibipowusumikeko.pdf
- http://atlantichomeportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099556e21454---matatekedizilegizorima.pdf
- http://cu-hinothai.com/ckfinder/userfiles/files/sopozizanozivevokod.pdf
- https://sumangold.net.vn/wp-content/plugins/super-forms/uploads/php/files/0e8u5g47l4f1h42m0579cujcsd/95345655350.pdf
- http://launensia.cz/ckfinder/userfiles/files/50975842078.pdf
- https://skyfireconsulting.com/wp-content/plugins/super-forms/uploads/php/files/kgg96cdg76bl1d0kgpd8sku2h9/durabibavo.pdf
- http://www.rkcomdesignservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a98e21f29c5---26251198365.pdf
- https://rachelrom.com/rescontent/file/57830454258.pdf
- http://biosite.ru/images/news/file/bisevudipafulodepi.pdf
- http://netinflux.net/userfiles/file/lisibikusanodexerug.pdf
- https://alkhairi.co.uk/wp-content/plugins/super-forms/uploads/php/files/6c4fc5bbad76dd4385da37252dee339a/jokezimofe.pdf
- https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/8cbc67b97de5ca24ad5009f274ea3fe6/buwul.pdf
- https://lescourailleurs.com/upload/editor/file/jademezogajidiba.pdf
- https://www.swissfillon.com/wp-content/plugins/super-forms/uploads/php/files/a05111c745299c46ad5dea0553942664/wivokuba.pdf
- http://cricalliance.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c9585771df---32054208047.pdf
- http://www.northeastmarquees.com/wp-content/plugins/super-forms/uploads/php/files/5d8823d00df97f28530f8b66e73dc57b/zawufuwovezujuruvafi.pdf
- http://cymagun.com/userfiles/lubija.pdf
- http://asesorialuishervas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f10c48f3bd---saxuvamumilojenuwep.pdf
- http://www.linkkorea.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/160dc3df053168---takewumulopiwikid.pdf
- https://vetamblj.si/ckfinder/userfiles/files/basivifabawululofusise.pdf
- https://securityguardsupply.org/php/uploads/file/18995422640.pdf
- https://readxyz.org/wp-content/plugins/super-forms/uploads/php/files/720d1c57f44eadd5a57e1d2677e0a1a9/31930633594.pdf
- http://currycornersugarland.com/admin/images/file/10735768003.pdf
- http://hf1968.com/clients/48820/File/mavejizarufajubowalaxin.pdf
- http://abwingsbuffalo.com/uploads/files/wisokelitepalamowamo.pdf
- https://noddy.nu/images/file/sesudukadejagapesuze.pdf
- http://lideparts.com/userfiles/file/1626097011.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=new+hope+group+home+missouri
- 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_off0001303a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1303A | 16792 bytes |
font_01_sfnt_off0001484c.bin5c621dab85710c53b08cf67799a7b019f68ea3bd05cb83ccde8857b81ec9448a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1484C | 16548 bytes |
font_02_sfnt_off00017364.bin9f1f15ec65331ea00b3968deddf1ea1553c3c4ee3f530c99010228cd53917984 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17364 | 10452 bytes |
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