MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ML classifiers and ClamAV as malicious, with heuristics indicating it is a link farm designed to lure users into installing browser extensions or updates. While no scripts were directly extracted, the nature of the heuristics and the embedded URLs suggest a phishing or malware distribution attempt, likely leveraging a browser exploit or social engineering to achieve its goals.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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://laser-piskovani.cz/democms/userfiles/file/48528707436.pdf In PDF document text
- https://renetravel.ro/images/files/kuworodubovibekopuruzi.pdfIn PDF document text
- https://linkevicius.com/upload/galery/file/81225011265.pdfIn PDF document text
- http://fzcce.com/aimgs/uload/files/gavisibobijesaxupojagovod.pdfIn PDF document text
- https://haisanquangninh.org/data/dulieu/files/zejedipe.pdfIn PDF document text
- http://msslink.ru/userfiles/files/54830297138.pdfIn PDF document text
- http://gardenofsound.com/userfiles/files/12612005011.pdfIn PDF document text
- http://zetrade.cz/userfiles/file/goxapotigilu.pdfIn PDF document text
- http://reanda.com/jingkelun/userfiles/files/20210904153139.pdfIn PDF document text
- https://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161308ae955ac3---77892572083.pdfIn PDF document text
- https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613dca34d3ca2---dalegipegilim.pdfIn PDF document text
- http://ski-experience-japan.com/images/blog/file/25198309380.pdfIn PDF document text
- http://fence-alarm.com/userfiles/files/waguselu.pdfIn PDF document text
- http://motorlustor.net/userfiles/file/lokamoputopugunug.pdfIn PDF document text
- http://baobianhkhang.com/upload/files/penuse.pdfIn PDF document text
- https://resortweeks.pro/userfiles/file/sugadipuzulas.pdfIn PDF document text
- https://upbfassadenbau.com/upload/file/nodinupobes.pdfIn PDF document text
- http://bsbcarpet.com/userfiles/file/99197156110.pdfIn PDF document text
- https://interativacorretora.com/fotosempresa/files/41135807498.pdfIn PDF document text
- http://www.lovebliss.tw/UserFiles/files/xinovatasirilaxevowexu.pdfIn PDF document text
- https://abss.pt/userfiles/file/50033846829.pdfIn PDF document text
- https://beaszemin.com/files/25160643717.pdfIn PDF document text
- http://maasmartcity.com/userfiles/file/9824781531.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=how+to+install+chrome+in+android+tvPDF 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_off0000df20.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF20 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f737.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF737 | 10780 bytes |
SHA-256: 8cc312df633f41658b097d2b07e0da223ff583472938dbad2863df860f05e914 |
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font_02_sfnt_off00010fdc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FDC | 19656 bytes |
SHA-256: e12cf4c06aaf7b4c47b4fa59db0ab54b2ee46dcac54ec3dae013787e32b70527 |
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