MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains embedded JavaScript and multiple external URLs, indicating a malicious intent to redirect the user. The 'SE_BROWSER_INSTALL_LURE' heuristic strongly suggests the document's purpose is to trick the user into installing a fake browser extension or update, a common tactic for malware delivery or credential theft. The ML classifier and ClamAV detection further confirm the malicious nature of the file.
Machine Learning
- Nyx PDF Classifier malicious score 0.9988
Heuristics 7
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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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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 https://ketchas.ru/uplcv?utm_term=how+to+block+omegle+on+chromebook PDF link annotation
- https://festivaldelmaridaje.com/sgi_userfiles/userfiles/files/55786146058.pdfIn PDF document text
- http://shepardinteriordesign.com/rw/upload/file/nobamugelivijamuranu.pdfIn PDF document text
- https://ncvpte.in/userfiles/file/69011325057.pdfIn PDF document text
- https://suacuachuyennghiep.com/uploads/files/jogidafi.pdfIn PDF document text
- https://marwaservicecenter.com/nbloom/fckuploads/file/86028094492.pdfIn PDF document text
- https://fototipia.hu/files/files/kokifarodopuvabakubenepu.pdfIn PDF document text
- https://relleno-acidohialuronico.com/wp-content/plugins/super-forms/uploads/php/files/c38d2befd00eb0577042811e8a8acb8c/67961650571.pdfIn PDF document text
- http://www.neoneofitou.com/ckfinder/userfiles/files/13106423891.pdfIn PDF document text
- https://gionggiacam.com/ckfinder/userfiles/files/63902251742.pdfIn PDF document text
- https://nazrabilisim.com/calisma2/files/uploads/24376980495.pdfIn PDF document text
- http://medianet2000.net/amm_prod/image_news_popup/file/jigidijafelajuzeverale.pdfIn PDF document text
- http://nagakuratrading.com/js/upload/files/26663453175.pdfIn PDF document text
- http://mybyblos.com/userfiles/file/tivoliferamusira.pdfIn PDF document text
- https://turismo-galicia.es/ckfinder/userfiles/files/78200506709.pdfIn PDF document text
- http://zespolbahamas.pl/zdjecia/file/1691091395.pdfIn PDF document text
- http://businessplan-capalpha.fr/mbp/upload/images/images/upload/ckfinder/19985161964.pdfIn PDF document text
- http://kemnhapkhau.com/upload/files/65474855348.pdfIn PDF document text
- https://ekransamara.ru/files/79211499088.pdfIn PDF document text
- http://studioarchterreni.it/userfiles/files/kupiw.pdfIn PDF document text
- http://alnoorcity.com/userfiles/file/kemimokasa.pdfIn PDF document text
- http://www.w.radeton.cz/ckfinder/userfiles/files/lixikafidipevadupusinu.pdfIn PDF document text
- http://secureyun.cn/uploadfile/file///2021090810003961.pdfIn PDF document text
- https://mercedesmazo.es/wp-content/plugins/formcraft/file-upload/server/content/files/1612f399261599---72479540328.pdfIn PDF document text
- https://www.colline-eternelle.com/ckfinder/userfiles/files/47198154850.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_off00010cdf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CDF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000124f1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x124F1 | 18884 bytes |
SHA-256: 7f18c403f7eebd936b8d57c6b01f0ca4e37545d2d3930a97236a74ccc3a12301 |
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font_02_sfnt_off00015597.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15597 | 10564 bytes |
SHA-256: 0b9af2f43c0ff06aa05c123758b5905123ee2d0dabdc65f5499aa2eb530efc15 |
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