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, exhibiting characteristics of a phishing lure. The heuristic 'SE_BROWSER_INSTALL_LURE' indicates the document attempts to trick the user into installing a browser extension or update. While no scripts were directly extracted, the presence of numerous external URLs, including one pointing to a potential downloader, suggests a multi-stage attack. The document's structure and embedded links are consistent with a phishing campaign designed to deliver further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
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 https://coretry.ru/uplcv?utm_term=video+downloader+apk+for+pc PDF link annotation
- https://lenaoyunlar.com/calisma2/files/uploads/9786648086.pdfIn PDF document text
- https://kentacademymiango.com/userfiles/file/21276061206.pdfIn PDF document text
- https://imagebeaute.fr/userfiles/file/zarorulajuvun.pdfIn PDF document text
- http://cantinachitarra.it/userfiles/file/54724163265.pdfIn PDF document text
- https://www.oalysa.cz/ckfinder/userfiles/files/tunifugufoxika.pdfIn PDF document text
- http://glovimex.com/uploads/ckfinder/files/6548382174.pdfIn PDF document text
- http://yuanhebiotech.com/upload/files/redetudosukuzu.pdfIn PDF document text
- http://www.colegiometa.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/16135646a2cb98---15610979125.pdfIn PDF document text
- http://talcmanagement.com/uploaded_files/userfiles/files/segonorakedavajedavolife.pdfIn PDF document text
- https://idealist.ro/userfiles/file/70592954791.pdfIn PDF document text
- https://www.benkorner.nl/admin/library/ckfinder/userfiles/files/84126216976.pdfIn PDF document text
- https://strings97.hu/userfiles/file/18257471353.pdfIn PDF document text
- http://mondoacquapiscine.com/userfiles/files/bomevujewidonilolajojal.pdfIn PDF document text
- http://dietaltop.com/userfiles/files/98249058981.pdfIn PDF document text
- https://hotellemaritime.com/hotel/upload/files/8456449937.pdfIn PDF document text
- http://www.johnrealestate.in/ckeditor-ckfinder-integration/uploads/files/9141506579.pdfIn PDF document text
- https://campermagazine.tv/public/file/rixigojejukixasep.pdfIn PDF document text
- http://kristiankutschera.de/userfiles/file/80157044021.pdfIn PDF document text
- http://kasaitogo.com/uploads/files/2691827623.pdfIn PDF document text
- http://milkexim.ru/imgeditor/file/30216438846.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_off0000cf33.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCF33 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e74a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE74A | 10496 bytes |
SHA-256: eed6d74f683db1a85950d539e11ea4fc754488ac78f13a98c265134f906a6458 |
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font_02_sfnt_off0000ff42.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF42 | 17736 bytes |
SHA-256: 91da77e3ced2d87137c82fdccf5614bd3f5ac11793e3f69efc2fc9743731c876 |
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