MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external links, many of which point to compromised websites or disposable hosting, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. The embedded JavaScript likely facilitates the redirection to these malicious URLs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://cructi.ru/uplcv?utm_term=editing+software+for+windows+7
- https://nomortiga.com/contents/files/81402925602.pdf
- https://ecotranslation.ca/upload/editor/file/josuvedokepubobasekasudi.pdf
- http://nguyenthaotech.com/upload/files/37586470344.pdf
- http://expertcomptablecourreges.fr/michel_courreges/userfiles/file/45789556850.pdf
- http://auburn-companies.com/userfiles/files/26869357848.pdf
- http://conflictfreeelectronics.com/ourprojects/chowki/UserFiles/renuka/file/6926730.pdf
- http://boldino-hotel.com/ckfinder/userfiles/files/lebot.pdf
- http://evergreendentistryva.com/app/webroot/js/ckfinder/userfiles/files/puxefotujufevozozope.pdf
- https://mangalargalux.com.br/ckfinder/userfiles/files/95833060022.pdf
- http://parikshitconstruction.com/uploads/pizunifoxipidadaritaj.pdf
- http://mgocsm.in/userfiles/file/tidozofudinuzasufuzinu.pdf
- https://cissud.eu/uploads/ck_editor/files/jetiliwal.pdf
- http://langeline.com/ckeditor/upload/files/pegadowedi.pdf
- https://eledigitalpr.it/allegati/file/lokut.pdf
- http://mwbright.com/upload_fck/file/2021-9-1/20210901170903665753.pdf
- https://helicopterleasingservices.com/userfiles/files/65533399905.pdf
- https://bibonatura.hu/ckfinder/userfiles/files/937613172.pdf
- http://www.naturapreserved.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614002519c9db---donajojovabonadu.pdf
- http://gf-location.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1613bc77f886fa---73591618597.pdf
- http://nwhouse.ru/uploads/file/xixekufa.pdf
- https://www.frankcapassoandsons.com/wp-content/plugins/formcraft/file-upload/server/content/files/161411ae38464d---24337274973.pdf
- http://bridgesonthepark.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138a9ccdf0ff---31508859175.pdf
- https://vidaleve.ind.br/ckfinder/userfiles/files/nevijijok.pdf
- https://llbyggodesign.se/UserFiles/files/pezidugubagemosovan.pdf
- http://donahoelawfirm.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/fojivoberilujuw.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_off0000dc86.bin4e22daf255ccec3618c4ae9e20bb088cc711b3b86d85b7b1639cedf197f2be7c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC86 | 17980 bytes |
font_01_sfnt_off00010a93.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A93 | 16792 bytes |
font_02_sfnt_off000122aa.bin2b6f43df6b31ea1ac7d52be665e687a1149ff94f360888b2dbb49d54ee594fd3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x122AA | 10604 bytes |
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