MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains an embedded JavaScript stream and numerous external URIs, indicating malicious intent. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' suggests the document is designed as a link farm on disposable hosting, likely to distribute malware or conduct phishing. The ML classifier and ClamAV detection strongly support the malicious verdict.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://synerhu.ru/uplcv?utm_term=jester+arcana+persona+4 PDF link annotation
- https://0922.sproname.com/files/userfiles/files/31592674875.pdfIn PDF document text
- http://dailynewsodia.com/assets/ckfinder/core/connector/php/uploads/files/7029469980.pdfIn PDF document text
- http://wronba.com/uploads/wysiwyg/file/79866663224.pdfIn PDF document text
- http://pensionpoint.cz/userfiles/files/26383620439.pdfIn PDF document text
- https://nsck-cykelmotion.dk/userfiles/file/37534342502.pdfIn PDF document text
- http://larrysiegellaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/zifufumukuri.pdfIn PDF document text
- https://yoimart.com/upload/file/20210917201759.pdfIn PDF document text
- https://amigo-shop.105h.net/upload/files/sogawaxav.pdfIn PDF document text
- http://dalieuht.com/app/webroot/uploads/files/18853202960.pdfIn PDF document text
- http://www.meglobalinc.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1613586fc92bb3---28988115018.pdfIn PDF document text
- http://modernplating.com/userfiles/file/movujofisetawukiraxi.pdfIn PDF document text
- http://air-con.ru/upload/files/96666411637.pdfIn PDF document text
- https://onlineadda.organicemall.com/ckfinder/userfiles/files/kexoreninopato.pdfIn PDF document text
- https://atlaskvartir.ua/data/uploads/files/25913962865.pdfIn PDF document text
- http://sjar-tech.com/uploadfile/file///2021090310295930.pdfIn PDF document text
- http://mtt-association.fr/upload/file/89072875861.pdfIn PDF document text
- https://myarchitect.es/ckfinder/userfiles/files/kojezeda.pdfIn PDF document text
- https://vasantviharproperties.com/userfiles/file/fumimiva.pdfIn PDF document text
- http://cetis156.neutronds.com/assets/js/ckfinder/userfiles/files/90823496709.pdfIn PDF document text
- http://m-camper.ru/ckfinder/userfiles/files/wowozobadorogotepapogal.pdfIn PDF document text
- https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16136d7619f2a0---36737564200.pdfIn PDF document text
- https://gamepinleri.com/calisma2/files/uploads/93900923108.pdfIn PDF document text
- http://union.travel/ckfinder/userfiles/files/69765293154.pdfIn PDF document text
- http://traiteurluc.com/userfiles/file/nenatemuj.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_off0000d810.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD810 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f027.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF027 | 10296 bytes |
SHA-256: 3306d3aa4b27af34b1200776bf14de5c15b24c1af604c561ca3b400f32958150 |
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font_02_sfnt_off0001078b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1078B | 17788 bytes |
SHA-256: 823b14cc9907bb727f654b4665b3b454809e074604ad726a0c3c5e2dc7248ea8 |
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