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 functions as a link farm and contains a lure for remote support tools, suggesting an attempt to trick users into installing potentially malicious software. While no scripts were directly extracted, the PDF structure and embedded URLs point towards a phishing or malware delivery mechanism.
Machine Learning
- Nyx PDF Classifier malicious score 0.9970
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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Remote-support tool lure high SE_REMOTE_SUPPORT_LUREDocument instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
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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://ketchas.ru/uplcv?utm_term=fatty+liver+and+spleen PDF link annotation
- http://onlinemidias.com/ckfinder/userfiles/files/57829576424.pdfIn PDF document text
- http://b-solutions.net/userfiles/file/xovidajidusaxugame.pdfIn PDF document text
- http://mijinmotor.com/fckeditor/userfiles/file/votijawefivipaluzibob.pdfIn PDF document text
- http://www.globalnautique.nl/upload/files/65472464999.pdfIn PDF document text
- https://braindevelopmentmaps-org.neurondevelopment.org/userfiles/files/papotajowadifi.pdfIn PDF document text
- http://witnesstherealist.com/wp-content/plugins/super-forms/uploads/php/files/959eb2dd48983f9e68ed16e2ffff789f/pipunonug.pdfIn PDF document text
- http://kenshopvn.com/uploads/files/54033967046.pdfIn PDF document text
- http://icloudcleaners.com/uploads/account/autoresponderfiles/89122973454.pdfIn PDF document text
- http://hamzalegalservices.com/userfiles/file/24606561168.pdfIn PDF document text
- http://lagunaapartman.hu/images/user/file/70026293376.pdfIn PDF document text
- https://resttour.com/images/userfiles/files/pafeviw.pdfIn PDF document text
- http://mulroyenvironmental.ie/userfiles/file/sugitab.pdfIn PDF document text
- http://adanateknikservis.web.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1615b9e7d5352a---81325162147.pdfIn PDF document text
- http://kgmda.com/upload/files/jodivevirufupogat.pdfIn PDF document text
- https://produse-zilan.ro/files/jubowajo.pdfIn PDF document text
- https://onlinendttraining.net/files/niretazeli.pdfIn PDF document text
- https://tonere.shop/app/webroot/files/userfiles/files/38638895950.pdfIn PDF document text
- https://thinkglobalcompliance.com/ckfinder/userfiles/files/46951432056.pdfIn PDF document text
- http://businessplan-capalpha.fr/mbp/upload/images/images/upload/ckfinder/72956076933.pdfIn PDF document text
- https://adamslakeband.org/userfiles/file/gewanuroja.pdfIn PDF document text
- http://ceroki.com/image/files/21204310326.pdfIn PDF document text
- http://japanbizkorea.com/userData/ebizro_board/file/jovuj.pdfIn PDF document text
- http://uk-finansist.ru/userfiles/file/tuwof.pdfIn PDF document text
- http://botosani.ro/img/uploads/file/toveb.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_off0000f83b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF83B | 10420 bytes |
SHA-256: f266995e22527b30cc419062ecd579a603b52bdff8faa9280e5ff6ee76bd756e |
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font_01_sfnt_off00010ff5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FF5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012807.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12807 | 21728 bytes |
SHA-256: 27957389a1f3cfc90a70894be830b9236cf8788141915503f95974435c87b239 |
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