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 CMS upload storage or disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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://infrive.ru/uplcv?utm_term=social+dilemma+full+movie+online
- https://aronabritcan.com/userfiles/file/xonipibuxukibiwakirud.pdf
- https://yarsan.ru/wp-content/plugins/super-forms/uploads/php/files/5545979eff8dd1ed51d1627c515f2530/40715162077.pdf
- https://aviatroglo.fr/IMG/file/ziwilunitabuvatabotur.pdf
- http://steelbo.com/uploads/admins/u0/files/20210919073004.pdf
- http://restaurant-lyons.fr/userfiles/file/tumazakejosufejepo.pdf
- https://inprovitmexico.com/ckfinder/userfiles/files/suremubobojekaw.pdf
- http://confidenzacsapagy.hu/upload/bajitakegejuvitela.pdf
- http://ctyrkolky-gamax.cz/data/dokumenty/fopibijudidino.pdf
- http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/1613d4692f25e7---xuvitilar.pdf
- http://clinton.abwingsmd.com/uploads/files/xewogejobar.pdf
- http://adidravidar.com/ckfinder/userfiles/files/laditu.pdf
- https://stepweystudy.com/ckfinder/userfiles/files/tizabut.pdf
- http://eschool365.in/js/admin/uploadfiles/file/37263099471.pdf
- http://indyztyle.com/ckfinder/userfiles/files/61669315246.pdf
- https://hoatuoi360.vn/uploads/files/4895496520.pdf
- http://dagmar-e.de/userfiles/file/nuzudububeriwesova.pdf
- https://www.histoiresdegroupes.com/wp-content/plugins/formcraft/file-upload/server/content/files/16143f0ddd750f---52759369704.pdf
- https://alpinismbihor.ro/app/webroot/files/userfiles/files/55120269188.pdf
- http://www.kroonzuivel.nl/ckfinder/userfiles/files/zimomagitopovapolefu.pdf
- https://thewentworthco.com/wp-content/plugins/super-forms/uploads/php/files/s894h0tac4f1eehdtbd8m46lpt/19885006982.pdf
- http://yuhongzg.com/d/files/88168948357.pdf
- http://gzperson.com/uploadfile/files/79999143876.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_off0000aded.binab1e58512007fc571c5c2cc4bd309a6ba686afd0927ec6c2b53b3b791f22ac8f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xADED | 15532 bytes |
font_01_sfnt_off0000d556.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD556 | 16792 bytes |
font_02_sfnt_off0000ed6d.binfb4b1a799b1ec717f0741502f77ba907b4d41d961ba5a9d9eb62a1a52d4f3c49 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED6D | 10512 bytes |
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