MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of links pointing to compromised WordPress upload directories and other disposable hosting, indicating a link farm designed to distribute malicious content. The ClamAV detection and ML classifier strongly suggest a phishing or trojan payload is being served through these links. No scripts were extracted, but the structure and URL patterns are indicative of a phishing lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9972
Heuristics 6
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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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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://coretry.ru/uplcv?utm_term=motion+in+one+dimension+class+9+pdf
- http://chelseacarpet.com/ckfinder/userfiles/uploads/xuparidulunodideseto.pdf
- https://earplighting.com/wp-content/plugins/super-forms/uploads/php/files/408876bb65aa5389d427f26f04b4c3a4/97875843599.pdf
- https://3dreamstudios.com/wp-content/plugins/super-forms/uploads/php/files/07ce7eb2f3fdd0a387b3bed84e310062/xofaxurevafef.pdf
- http://aarogyamedico.com/userfiles/file/lavube.pdf
- http://acril.ru/ufiles/files/bejijojogonarer.pdf
- https://noble-worldwide.com/wp-content/plugins/super-forms/uploads/php/files/64b60b77ce3b47bb7d481619c8bebf20/buvome.pdf
- http://www.primalegal.eu/wp-content/plugins/super-forms/uploads/php/files/bsenn81q1ohe2sc49q51ik3be4/42474024768.pdf
- http://faizleathergloves.com/userfiles/files/21862105198.pdf
- https://istanbulbalbir.com/upload/ckfinder/files/43936611644.pdf
- https://genimmigration.com/viking1/uploads/files/45815627182.pdf
- https://www.alpha-dynamics.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160baa99444493---13530429789.pdf
- https://juvelyrikoscentras.lt/Files/file/gixoxijidikitotekudilig.pdf
- https://ateneoarbonaida.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c15e555baa7---bulosanibemorosakafikur.pdf
- https://eduinfinite.com/wp-content/plugins/super-forms/uploads/php/files/129556e747ee718f208f07d5c37490cb/bamuxanusezulo.pdf
- http://minutemen-jrotc.com/clients/84940/File/85602156233.pdf
- https://churchosonline.com/wp-content/plugins/super-forms/uploads/php/files/f75736f6182787dfc1fa4bf0bdeb4176/lunusowutogulaworilubofox.pdf
- http://pvsystexperts.com/wp-content/plugins/super-forms/uploads/php/files/hh45o4c20pqc8l9qq77k1fihb0/68861751723.pdf
- http://wsm.hk/images/uploadfiles/file/viwekobugituzidateb.pdf
- http://uforoi.com/app/webroot/uploads/files/sorazebejovirewefalokabik.pdf
- http://metzpaintings.com/wp-content/plugins/formcraft/file-upload/server/content/files/160985c2406dd2---xopiv.pdf
- http://lnaixi.com/userfiles/file/20210619102021_302569274.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_off0000e3b9.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3B9 | 16792 bytes |
font_01_sfnt_off0000fbd0.binf8efb76ca23882a5a33902dbcbc7ce63b2d524b8e542f3dc866af4a3415701fd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFBD0 | 10840 bytes |
font_02_sfnt_off000114d9.bine56e1ed5fbf7ac39d75608e7dd57a923fc9050fd649b9eb6d4dd28e1b30d8ab0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x114D9 | 17916 bytes |
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