MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to redirect users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware delivery. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' further supports the nature of the document as a collection of links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://systematix.pl/userfiles/file/26320102310.pdf In PDF document text
- http://santabruna.cl/upload/file/pedodakavawas.pdfIn PDF document text
- http://legalinet.eu/userfiles/files/vojuwebowalazaxel.pdfIn PDF document text
- http://vipacademy.org/userfiles/file/98263541895.pdfIn PDF document text
- https://ms01bet.com/contents/files/zetuguvutesulovaz.pdfIn PDF document text
- https://egca.fr/userfiles/file/20087178277.pdfIn PDF document text
- http://bacsiha.com/public/ckfinder/userfiles/files/napogawijune.pdfIn PDF document text
- http://constructionone.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16143ca404242f---44669324174.pdfIn PDF document text
- http://agro-partner.com/Image/files/wesuvosuz.pdfIn PDF document text
- http://househouse.it/userfiles/files/jiketap.pdfIn PDF document text
- http://servis-hradec.cz/files/file/tibazaselegogejoz.pdfIn PDF document text
- https://greenways.at/userfiles/file/vijepurawolixiwuze.pdfIn PDF document text
- http://youzedu.com/ckimages/files/20210907104647960531.pdfIn PDF document text
- http://skkl.cn/filespath/files/20210908024531.pdfIn PDF document text
- https://moniimpex.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140b23554a9d---gamuwariresamikisekezu.pdfIn PDF document text
- https://podimercrm.com/img/files/64725488856.pdfIn PDF document text
- https://jdbailbonds.com/wp-content/plugins/super-forms/uploads/php/files/7515c6667f67f5c61a014bb6da63162b/tanuwojixoxerivibadubax.pdfIn PDF document text
- https://siahotel.com/userfiles/files/36474636499.pdfIn PDF document text
- http://go-forum.cn/upload/files/direzixanasop.pdfIn PDF document text
- https://tranhtreo.com/images/ckeditor/files/tukujokunixorilawutixux.pdfIn PDF document text
- https://ismet.com.br/ckfinder/userfiles/files/tudejidugebigadugijiz.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=ver+uso+cpu+androidPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000cbb6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCBB6 | 18288 bytes |
SHA-256: 7559d42049e97102e597b82381b85a5f487026a889ce697df3f4f456591244e7 |
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font_01_sfnt_off0000fb73.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB73 | 10432 bytes |
SHA-256: b31952d1bdb6831b182d31489ce3130d83c3dbab57638526c97493e9d32cc9b5 |
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font_02_sfnt_off00011338.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11338 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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