MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was flagged by ClamAV as a phishing trojan and by an ML classifier as malicious. It contains numerous embedded URLs pointing to various PDF files hosted on different domains, suggesting a link farm or content distribution network. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a high number of distinct hosts, reinforcing the link farm hypothesis. While no scripts were explicitly extracted, the nature of the embedded URLs and the overall structure suggest a phishing or malicious content delivery attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
Heuristics 5
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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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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 http://hosungtour.com/FileData/ckfinder/files/20210903_20DF35660AE2E3EC.pdf In PDF document text
- http://www.gyndoktors.de/ckfinder/userfiles/files/92983311658.pdfIn PDF document text
- http://cageart.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16146441d07d71---61109437703.pdfIn PDF document text
- http://silver.jo/ckfinder/blanc/files/fovil.pdfIn PDF document text
- https://thietbivesinhsonhoa.com/webroot/img/files/fapezelemil.pdfIn PDF document text
- http://sziazsauto.com/uploads/files/71158562466.pdfIn PDF document text
- http://hkalc.com/userfiles/doxetapanajiweme.pdfIn PDF document text
- http://feg.vn/uploads/files/sewodanesu.pdfIn PDF document text
- http://oreade-breche.fr/userfiles/file/jujoxupunalir.pdfIn PDF document text
- http://rioairporttransfer.com/ckfinder/userfiles/files/98019945868.pdfIn PDF document text
- http://usairsprings.com/userfiles/file/90931743060.pdfIn PDF document text
- https://championsforchildren.org/wp-content/plugins/super-forms/uploads/php/files/8e1a9a98e663cfb0ae627e8cfd3c52eb/situsefesabena.pdfIn PDF document text
- http://itineraire-consulting.com/ckfinder/userfiles/files/wubabunazivasasukego.pdfIn PDF document text
- http://systemsbiology.at/uploads/assets/file/11529847778.pdfIn PDF document text
- http://yourbuilding.ru/userfiles/files/94030060974.pdfIn PDF document text
- http://mvdeastudio.it/userfiles/files/nitenulam.pdfIn PDF document text
- https://coolingrealestate.com/your-home-cleaner/FCKuploads/file/bagezisevutebaxapolax.pdfIn PDF document text
- https://nikosdimos.gr/userfiles/file/74278885099.pdfIn PDF document text
- https://hotelite.in/userfiles/file/49028560443.pdfIn PDF document text
- http://etcpremium.com/userfiles/files/66242127253.pdfIn PDF document text
- http://www.sport-konyv.hu/userfiles/file/24338274996.pdfIn PDF document text
- http://kcntanduc.vn/img_duhoc/files/pabenuguzedovaruji.pdfIn PDF document text
- https://gifarlcm.com/upfiles/editor/files/famalexipigaxo.pdfIn PDF document text
- https://www.asoriofrio.org/ckfinder/userfiles/files/63176958037.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=how+can+i+watch+true+to+the+game+2PDF 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_off0000eba2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBA2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000103b4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103B4 | 17692 bytes |
SHA-256: 92244a236fa4574021360a03ee202aeee5b127945ce9174da82e8a09cdccf4dd |
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font_02_sfnt_off000131e0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x131E0 | 10760 bytes |
SHA-256: 990476d8a41725b8ebbf667cf12e2ad9edbe0c36c6ecd8323e3b30e84e0de098 |
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