MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as a malicious PDF by ClamAV and an ML classifier. It contains embedded JavaScript, which is a common technique for executing malicious code within PDFs. The PDF also contains numerous external URIs, suggesting it is part of a link farm designed to redirect users to potentially malicious sites. The embedded JavaScript likely facilitates the redirection to these external URLs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
Heuristics 6
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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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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://ketchas.ru/uplcv?utm_term=isotope+of+lead PDF link annotation
- http://donghotam.com/luutru/files/nuketogenigufijipap.pdfIn PDF document text
- https://avistravel.activsport.ro/userfiles/file/kikujej.pdfIn PDF document text
- https://www.emcp-pmce.ca/_includes/ckfinder/userfiles/files/75618651077.pdfIn PDF document text
- https://pepinieramontana.ro/ckfinder/userfiles/files/nelenunisu.pdfIn PDF document text
- http://dga.gr/ILC/img/file/18262554570.pdfIn PDF document text
- http://sindikat777.ru/ckeditor/ckfinder/core/connector/php/uploads/files/99886058920.pdfIn PDF document text
- http://battlegrouponline.com/app/webroot/js/ckfinder/userfiles/files/nevikaviwuresonuzi.pdfIn PDF document text
- http://langeline.com/ckeditor/upload/files/82328772081.pdfIn PDF document text
- http://joyerialaplaza.com/ckfinder/userfiles/files/62796262990.pdfIn PDF document text
- https://kolegium.inaheart.org/upload/files/92616643795.pdfIn PDF document text
- https://taybaite.com/userfiles/file/4229283853.pdfIn PDF document text
- https://wurstfargo.com/wp-content/plugins/super-forms/uploads/php/files/35c8173cd10aebbac46333a2199301fd/zogokisepux.pdfIn PDF document text
- https://alsharqcc.com/userfiles/files/tafigobozonatuxo.pdfIn PDF document text
- https://jmbarrenetxea.soinuenea.eus/files/galeria/files/bemepubamekajeguke.pdfIn PDF document text
- http://midoriku.zaitakunet.jp/app/webroot/upload_images/files/mepupodexex.pdfIn PDF document text
- http://www.kidnuri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614816c788b3d---ropebi.pdfIn PDF document text
- https://innovaciones-plasticas.com/imagenes_cont/sitio/documentos/21730721215.pdfIn PDF document text
- http://intersonik.eu/upload/files/5458073184.pdfIn PDF document text
- https://lenaoyunlar.com/calisma2/files/uploads/ginopafazamidimifilobupeg.pdfIn PDF document text
- https://ultralloy.net/upload/files/nezaragugilusabusi.pdfIn PDF document text
- http://k3projekt.pl/uploads/userfiles/files/54237487145.pdfIn PDF document text
- https://esofagopisa.it/userfiles/file/35951460494.pdfIn PDF document text
- http://runhouchem.com/upload/files/86123422866.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_off0000b326.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB326 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cb3d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB3D | 10148 bytes |
SHA-256: d6fe5ef777e50c359099d4b58229f27853422ddc599c05199ccea325e04a444b |
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font_02_sfnt_off0000e21b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE21B | 14572 bytes |
SHA-256: 950834fde52db83e95f1f06dad773cff81ad1c73e2a069f37d7ed804b18934e8 |
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