MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF document was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it employs a social engineering lure, prompting the user to install a browser extension or update to view content. While no scripts were directly extracted, the nature of the detection and the presence of numerous external URLs suggest a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9971
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://nuklearmedizin-amro.de/userfiles/file/99069006732.pdf In PDF document text
- https://alismobile.co.uk/wp-content/plugins/super-forms/uploads/php/files/a9fcef8ca21c5a27c387fea70ff1b98f/50328393295.pdfIn PDF document text
- https://heritagelogs.com/wp-content/plugins/super-forms/uploads/php/files/7dr249eatl6kr17jnfteplpvsl/supopazuvavefavutatudope.pdfIn PDF document text
- http://kystar.net/filespath/files/20210907124833.pdfIn PDF document text
- http://hybsch.it/upload/file/22525611842.pdfIn PDF document text
- https://makiriaszto.hu/ckfinder/userfiles/files/dorisonajejekaguwedonineb.pdfIn PDF document text
- https://ilexgold.com/app/webroot/files/userfiles/files/ramajokoxenupunogubupef.pdfIn PDF document text
- http://lamorenj.com/userfiles/file/meramoresafofonobewa.pdfIn PDF document text
- https://www.koreayokogawa.com/ckfinder/userfiles/files/74232352043.pdfIn PDF document text
- http://vuatoyen.com/uploads/userfiles/file/jogalari.pdfIn PDF document text
- http://dralituncer.net/userfiles/file/6249121791.pdfIn PDF document text
- https://strategie-forex.com/ckfinder/userfiles/files/59053384469.pdfIn PDF document text
- http://auburn-companies.com/userfiles/files/67691488557.pdfIn PDF document text
- https://ra7a7p-h3ba7.com/contents/files/94502036499.pdfIn PDF document text
- https://munis-roquesalbes.cat/demo/vilalba/imatges/file/nupenerowofisun.pdfIn PDF document text
- http://world-green-hope.com/uploads/files/8759398981.pdfIn PDF document text
- http://mrtowing.ca/Lawyers/userfiles/file/xaxixibaw.pdfIn PDF document text
- http://cleversystems.ru/userfiles/file/magosojabadazazedoginizi.pdfIn PDF document text
- http://www.scenekunstskolen-efteruddannelsen.dk/ckfinder/userfiles/files/zunowake.pdfIn PDF document text
- http://arcadia-fitness.es/userfiles/file/lazazizol.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=supported+links+androidPDF link annotation
- https://www.thc.gda.pl/ckfinder/userfiles/files/numanexut.pdfIn PDF document text
- 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_off0000bfe8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBFE8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d7fa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7FA | 18744 bytes |
SHA-256: eb3969cf3075ad03c9df67d9ab71c5129258bf7def4325544d3e034740d10119 |
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font_02_sfnt_off000107f4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x107F4 | 10652 bytes |
SHA-256: eed6c960a3512443b9c1e2adc2a14d067cd33971460742b542640d425415a14e |
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