MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains embedded JavaScript and multiple external URIs, indicating an attempt to redirect users to malicious sites. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' suggests a deliberate effort to create a network of deceptive links. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to distribute further malware or phishing content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://nomylo.ru/uplcv?utm_term=best+free+pdf+viewer+android PDF link annotation
- https://nucamsa.es/userfiles/files/73206911605.pdfIn PDF document text
- http://kingcraftviet.com/uploads/ckfinder/files/lepupaz.pdfIn PDF document text
- http://www.korayozelguvenlik.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614ddc7aafe47---2089700573.pdfIn PDF document text
- http://phanphoiongnhuahoasen.vn/upload/files/ranazinetilarurukilon.pdfIn PDF document text
- http://sicilalluminio.it/userfiles/files/wamez.pdfIn PDF document text
- http://faurerom.com/userfiles/file/nogagegadiwakeruse.pdfIn PDF document text
- http://tractortools.cz/ckfinder/userfiles/files/71294220831.pdfIn PDF document text
- https://weborder.cloud/userfiles/file///wemikidu.pdfIn PDF document text
- https://srldirect.com/ckfinder/userfiles/files/67516770636.pdfIn PDF document text
- http://sowiik.pl/userfiles/file/33306524456.pdfIn PDF document text
- https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/46aea3b4f294da4a8b4d08b085bba59f/28446672402.pdfIn PDF document text
- http://baltic-rt.ru/ckfinder/userfiles/files/76054269685.pdfIn PDF document text
- http://slkuang.com/v15/Upload/file/2021925827256739.pdfIn PDF document text
- http://speed-r.com/js/upload/files/21997417462.pdfIn PDF document text
- http://hbisan.com/userfiles/file/61596758817.pdfIn PDF document text
- http://xn--q20b13r9leepaeb.net/upload/file/202109230626134011.pdfIn PDF document text
- http://jikaramen.com/uploads/files/rovuvakop.pdfIn PDF document text
- http://www.pro9apps.com/app/webroot/files/uploadimagesfile/98582680661.pdfIn PDF document text
- http://depcip.com/app/views/panel/ckfinder/userfiles/files/kalovamojolejaxubib.pdfIn PDF document text
- https://reaga.net/js/ckfinder/userfiles/files/fepebaku.pdfIn PDF document text
- http://av72-reklama.ru/userfiles/file/1632301369be95dbc3f9152c58becc.pdfIn PDF document text
- https://www.rougeindigo.com/ckfinder/userfiles/files/zanifepudufilidasijirel.pdfIn PDF document text
- http://triple-a.co.th/ckfinder/userfiles/files/palubulujogajin.pdfIn PDF document text
- http://bio86.fr/userfiles/fichiers/28365056775.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_off0000aff3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAFF3 | 16536 bytes |
SHA-256: d5f2537ed2299f2c2964b75752845cfed504dfd2c0fcf1c6715df33f077f4c58 |
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font_01_sfnt_off0000da2e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA2E | 10652 bytes |
SHA-256: 53ea7346adb68246e63d2de7a1c73452a8cd3a375743cc4501ca237aa0cfea80 |
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font_02_sfnt_off0000f2cf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2CF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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