MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file contains embedded JavaScript and a significant number of external URIs, many of which point to compromised CMS uploads and disposable hosting, indicating a link farm designed for phishing or malware distribution. The ML classifier and ClamAV detection strongly suggest malicious intent. The embedded JavaScript likely facilitates the redirection or exploitation process.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
Heuristics 7
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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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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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 http://moje-stranky.eu/userfiles/file/javibijotikipipuz.pdf In PDF document text
- http://for-rent-aalst.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ba5de4a868---57421308509.pdfIn PDF document text
- http://duhochoangthanh.com/upload/files/79368808641.pdfIn PDF document text
- https://sardiniagreencoast.com/userfiles/file/buwunowelaxirijosifuven.pdfIn PDF document text
- https://swimproject.eu/wp-content/plugins/super-forms/uploads/php/files/b909779b54b4cc305a8feb988b24d361/masadediwojudu.pdfIn PDF document text
- http://kleinschadenexpert.com/userfiles/file/39257273731.pdfIn PDF document text
- https://adian.eus/files/galeria/files/15056940867.pdfIn PDF document text
- http://express-service-auto.fr/ckeditor/ckfinder/userfiles/files/87803387594.pdfIn PDF document text
- http://wawa757.com/uploads/files/77536872706.pdfIn PDF document text
- http://bridgestone-ice-cruiser-7000.ru/ckfinder/userfiles/files/58183239867.pdfIn PDF document text
- http://safetyassessmentsolutions.co.uk/ckfinder/userfiles/files/39067726577.pdfIn PDF document text
- https://www.premiumtrade.ro/ckfinder/userfiles/files/jinino.pdfIn PDF document text
- http://huyminhplastic.com/upload/files/jemetewodizibigem.pdfIn PDF document text
- http://snieznik.pl/userfiles/file/zolafareb.pdfIn PDF document text
- http://ssanadia.in/userfiles/file/tizinurigukotofod.pdfIn PDF document text
- http://botosani.ro/img/uploads/file/damedipugexinabinasix.pdfIn PDF document text
- http://wagnerpc.com/userfiles/files/19729489436.pdfIn PDF document text
- http://gaishachuukobuhin.com/js/upload/files/96411811571.pdfIn PDF document text
- https://avantkart.com/wp-content/plugins/super-forms/uploads/php/files/mk1qj37urm1n774jm493ns44ba/787802996.pdfIn PDF document text
- https://caror.hu/ckfinder/userfiles/files/tudogufalakola.pdfIn PDF document text
- https://tsydesign.com/userfiles/jws/files/buxebuli.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=player%27s+handbook+5e+pdf+download+freePDF link annotation
- 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_off0000d1a0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1A0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e9b2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9B2 | 17588 bytes |
SHA-256: a0ac52796eddcee1624495da539b5f9cfc7ce658d68135a1edb047f5cfdae74d |
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font_02_sfnt_off0001172e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1172E | 11008 bytes |
SHA-256: 3355eb07eb47b05c9987b9b78844879402c804454d53aa136af2f2e99f8a5e70 |
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