MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains embedded JavaScript and is flagged by ML classifiers as malicious, with ClamAV detecting it as a phishing trojan. The heuristic 'SE_BROWSER_INSTALL_LURE' indicates the document's content is designed to trick users into installing software. The presence of multiple links to potentially compromised or disposable hosting sites further supports a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
Heuristics 8
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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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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 http://violetstudio.in/userfiles/file/belexijubipu.pdf
- http://skiflogistics.ru/userfiles/file/kuvovulaviwajixef.pdf
- https://aakritidigitals.com/userfiles/files/dobakuma.pdf
- http://ideviceplus.nl/app/webroot/files/userfiles/files/9400274723.pdf
- https://nichecnk.leaddeehub.com/userfiles/files/82236217713.pdf
- http://www.me.ntou.edu.tw/ckfinder/userfiles/files/20210918_124839.pdf
- https://noble-program.site/js/ckfinder/userfiles/files/budugibimirimogup.pdf
- https://bizdrive.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/1613211c5d1783---5181037032.pdf
- http://kancelaria-perfect.pl/app/webroot/media/files/lekavubikiki.pdf
- http://touristclub.in/userfiles/file/tudapexuzogelipopofe.pdf
- https://abhrian.com/userfiles/files/sokukarilikajuz.pdf
- https://apoiotelecom.com/imagens/img_fckeditor/file/49546616185.pdf
- http://braciszewska-klimek.pl/fck_files/file/14328470509.pdf
- http://around-sicily.net/userfiles/file/37332083625.pdf
- http://vimar.ua/userfiles/files/vavivivi.pdf
- https://gotoko.com/cmsv2/upload/files/nikivajazigagu.pdf
- http://cf2sc.cn/userfiles/file/vamipozugogegipoputofew.pdf
- http://lammensfilip.be/uploads/files/jobanotumumezudobinefesij.pdf
- http://agapetown.net/ckfinder/userfiles/files/43476873513.pdf
- http://jnmindia.com/outscapes/admin/ckeditor/uploads/ck/files/faliwovim.pdf
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613006cfa9679---takifegu.pdf
- http://yatros.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613a3185d964a---25688056469.pdf
- https://wolfgang-photography.com/userfiles/files/36686726559.pdf
- http://intertexmedical.com/userfiles/files/xuxigal.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=greys+anatomy+s17+putlocker
- 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_off0000d121.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD121 | 16792 bytes |
font_01_sfnt_off0000e938.binaa284224a1ceb1f015206b0f3eb363ba590e0aa40c41f21ddafc92070012e902 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE938 | 10888 bytes |
font_02_sfnt_off0001029d.bin84432d8b2d7f53f98b1b54ea010f20897cd47699af9c164d401f839a93fe6d9f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1029D | 18244 bytes |
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