MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF contains embedded JavaScript and numerous links to external PDFs hosted on disposable domains, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to exploit vulnerabilities or trick users into downloading further payloads. The presence of PDF_RANDOM_URL_LINK and PDF_SEO_DISPOSABLE_LINK_FARM heuristics confirms the use of algorithmically generated URLs on potentially untrusted hosting.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
Heuristics 7
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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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://jeansresource.com/js/ckfinder/userfiles/files/fakibosuzagu.pdf In PDF document text
- http://metallpress.info/files/46531011617.pdfIn PDF document text
- https://ssmahavidyalaya.org/lion/uploadedfiles/fck/files/file/vemevibafowutikirilokawi.pdfIn PDF document text
- https://congnghiepxd204.vn/upload/files/1844048302.pdfIn PDF document text
- https://laurallo.com/ckfinder/userfiles/files/bewijimupe.pdfIn PDF document text
- http://jcbcharpentebois.com/ressource/site-image/files/kipunovaxe.pdfIn PDF document text
- http://przedszkolenisko.pl/userfiles/file/64963679795.pdfIn PDF document text
- http://thaide.org/userfiles/file/89595442556.pdfIn PDF document text
- https://jyapa.com/jhuoyue/uploadfiles/39656951573.pdfIn PDF document text
- https://dailyhondaotomientay.com/upload/files/takoxurusenej.pdfIn PDF document text
- http://ryyw.com/upload/files/2021/09/202109070945156694.pdfIn PDF document text
- https://anandalaya.in/resources/file/bulogebaxemelifomixu.pdfIn PDF document text
- https://planet-pvc.com/upload/files/fudegedabolunaguxamowofu.pdfIn PDF document text
- https://www.mybizwebsites.com/wp-content/plugins/formcraft/file-upload/server/content/files/161368e458fb43---45989119754.pdfIn PDF document text
- https://bazk.info/public_htmluploads/file/36275896189.pdfIn PDF document text
- https://ontech.vn/images/ckeditor/files/35751494653.pdfIn PDF document text
- https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/0d9c20b9af8da6ea1fd849d7d94af7ee/fegatikisubewowanuf.pdfIn PDF document text
- http://fuerst-architects.com/uploads/file/pokefowetuxekizopi.pdfIn PDF document text
- http://ambulatorioveterinarioscapindandrea.it/userfiles/files/90806411112.pdfIn PDF document text
- https://www.luxboss.com/ckfinder/userfiles/files/30834576064.pdfIn PDF document text
- http://fuzoku-kyujin.jp/ckfinder/userfiles/files/18606630658.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=give+me+liberty+seagull+5th+edition+ebookPDF 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_off0000dc47.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC47 | 19420 bytes |
SHA-256: 309a1bf21f46489de71b98c5cd4573883165d418dac7b4c43b13500fb84ee27e |
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font_01_sfnt_off00010f01.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F01 | 11380 bytes |
SHA-256: 7be9a1defb3afb333abaa2b7c2e5050780f7240469532943de8a01d777a78bca |
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font_02_sfnt_off0001298c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1298C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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