MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is a PDF containing embedded JavaScript and numerous external URIs, many of which point to disposable hosting. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a link farm structure, and the ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution. The embedded JavaScript is a common method for initiating malicious actions within PDFs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://coretry.ru/uplcv?utm_term=market+leader+upper+intermediate+3rd+edition+answers+pdf PDF link annotation
- http://ucinnovation.ru/admin/ckfinder/userfiles/files/51632160666.pdfIn PDF document text
- http://templeton.sk/userfiles/file/woxoragesafofedok.pdfIn PDF document text
- https://tttinox.com/upload/userfiles/files/87017516771.pdfIn PDF document text
- http://musclecar-taps.com/js/upload/files/34496604284.pdfIn PDF document text
- http://choinka4x4.org/cms/files/file/34010648943.pdfIn PDF document text
- http://www.psyforyou.nl/upload/fckeditor/file/firexisifidavi.pdfIn PDF document text
- http://www.eurosecurimed.com/ckfinder/userfiles/files/95564790869.pdfIn PDF document text
- https://slide-bearing.com/d/files/55934266516.pdfIn PDF document text
- https://miguktour.com/FileData/ckfinder/files/20210905_524D82EE5C6FF168.pdfIn PDF document text
- http://rosesrealtyhomes.com/userfiles/files/75160446286.pdfIn PDF document text
- http://slesnick.net/userfiles/files/3038416487.pdfIn PDF document text
- http://hublihorse.com/uploads/userfiles/files/6029398584.pdfIn PDF document text
- https://voicelux.ru/wp-content/plugins/super-forms/uploads/php/files/70ac1fecd512955334a950b8c8e9c9b2/78318846120.pdfIn PDF document text
- http://exmar.it/foto_fck/file/fudenusol.pdfIn PDF document text
- http://ippinnudon.com/uploads/files/witigeditoxagijonoxajomoz.pdfIn PDF document text
- http://salwex.hu/file/27165034639.pdfIn PDF document text
- http://irollee.com/userfiles/file/babikosujinar.pdfIn PDF document text
- http://camonetinternational.com/files/file/vitupijizowute.pdfIn PDF document text
- https://beautydiction.com/ckfinder/userfiles/files/lasawesexoporilexuponizi.pdfIn PDF document text
- http://chinalabware.net/d/files/vowelusituxunulimejenukud.pdfIn PDF document text
- http://xn--aknmedcal-wpbe.com/uploads/file/34454656711.pdfIn PDF document text
- https://www.lucaslobker.com/minor/ckfinder/userfiles/files/8456070277.pdfIn PDF document text
- https://satbietthu.com/luutru/files/suxiwedevop.pdfIn PDF document text
- http://kioskcondoweb.wpengine.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613530d9eb1bf---43807103794.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_off0000c7c2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC7C2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000dfd4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDFD4 | 18276 bytes |
SHA-256: e9df8f6ed02a02a5205a1f6c0cacb939a1d98289ed0c405eeb7c1b6c6316453a |
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font_02_sfnt_off00010f3c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F3C | 11104 bytes |
SHA-256: 5a739838dceeda142709640479c97fb0fe68bfda8c8eff142a3bda1d290f826a |
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