MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is a common technique for executing malicious code. It also contains numerous external URIs pointing to various domains, suggesting a link farm or redirection mechanism. The ClamAV detection and ML classifier strongly indicate malicious intent, likely phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9911
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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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://medvor.ru/uplcv?utm_term=adjectives+on+letter+a PDF link annotation
- http://dytac.hk/userfiles/72459086091.pdfIn PDF document text
- https://gencshoworganizasyon.com/upload/ckfinder/files/sutinexapozezedefomeb.pdfIn PDF document text
- http://murasakijr.com/uploads/files/luvizikovetadi.pdfIn PDF document text
- http://imdad-egypt.com/userfiles/file/90905210917.pdfIn PDF document text
- https://thehouseproduction.net/file/lukokadefonerubisipul.pdfIn PDF document text
- http://speed-r.com/js/upload/files/kijerixafofebesodosaxew.pdfIn PDF document text
- http://feldbach-tourismus.at/files/kesozodugiwutepozezubex.pdfIn PDF document text
- https://www.dyna-tech.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1614bf518c4da0---23222823188.pdfIn PDF document text
- https://verner.lt/images/files/ruzad.pdfIn PDF document text
- http://luyutea.net/v15/Upload/file/2021916158317544.pdfIn PDF document text
- https://allmassage.net/upload/file/20210914050908.pdfIn PDF document text
- https://villadorottya.hu/uploads/frontend/files/lofitabunonijubu.pdfIn PDF document text
- http://preciz.com/uploads/wysiwyg/files/83787484579.pdfIn PDF document text
- https://theemperorsoldclothes.co.uk/wp-content/plugins/super-forms/uploads/php/files/tm59teuash5s694liprphijd1q/23023910649.pdfIn PDF document text
- https://luxesystem.site/js/ckfinder/userfiles/files/37805684752.pdfIn PDF document text
- http://www.sospapa24.com/lib/ckfinder/imgupload/files/busenog.pdfIn PDF document text
- http://otczenacts.com/media/files/neraxitepojixebujulago.pdfIn PDF document text
- http://thcsnguyenvanhuyen.hoaiduc.edu.vn/ckfinder/userfiles/files/padipanidebitufemorerem.pdfIn PDF document text
- http://lixupeng.com/uploads/files/dinutiduzexerimo.pdfIn PDF document text
- http://decamiones.com/userfiles/file/ratilipuzif.pdfIn PDF document text
- http://thebeautyofdesign.nl/ckfinder/userfiles/files/58645083157.pdfIn PDF document text
- https://mgc.to/sites/web/upload/files/13762973442.pdfIn PDF document text
- https://die-elke.de/cms/elke_page_files/file/7473074472.pdfIn PDF document text
- http://vanillasky-ch.com/images/files/loxegimirix.pdfIn PDF document text
- http://shangrilayunnan.com/ckfinder/userfiles/files/dumat.pdfIn PDF document text
- http://dulichtantai.com/files/uploaded/files/dufosibijanuzokajagu.pdfIn PDF document text
- http://hglobaltourb2c.com/FileData/ckfinder/files/20210923_6B60794BAD4ED69A.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_off0000e429.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE429 | 10540 bytes |
SHA-256: f46d9eb04eebfb20eb8a322b60c1c9dcb1fcd533592ba932c22a240384acbc9d |
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font_01_sfnt_off0000fc4e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC4E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011460.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11460 | 17436 bytes |
SHA-256: 4fcf05e85ff4347ad51504a15577528d97f0fef668511c2536724298020daf95 |
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