MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF document detected as malicious by ClamAV and an ML classifier. It contains numerous embedded URIs, with one specifically noted as a 'link farm on disposable hosting'. The presence of embedded JavaScript streams suggests potential for malicious scripting, likely to facilitate the redirection to these external sites. The overall pattern indicates a phishing or malware distribution attempt.
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://laborke.ru/uplcv?utm_term=multiplayer+car+racing+games+for+android PDF link annotation
- http://tsradviseurs.nl/mailing/images/photo/file/5517084769.pdfIn PDF document text
- https://akamercedes.com/images/uploads/files/66111042368.pdfIn PDF document text
- http://nguyenthaotech.com/upload/files/83037024426.pdfIn PDF document text
- https://intekcanada.com/ckfinder/userfiles/files/lujibivoxewagaduwowex.pdfIn PDF document text
- http://liweisteel.co.th/ckfinder/userfiles/files/zakodujuxatojadewew.pdfIn PDF document text
- https://magicdiscoradio.hu/userfiles/file/sofupiwifoma.pdfIn PDF document text
- http://gaziogluenerji.com/images_upload/files/fafumetopulude.pdfIn PDF document text
- http://mineraux-et-lithotherapie.fr/ckeditor/upload/files/jiwogurowepepaw.pdfIn PDF document text
- http://studiorestagno.eu/userfiles/files/pibewijerevokijuvu.pdfIn PDF document text
- http://dellalontra.it/userfiles/files/bepijogevumojobavaropek.pdfIn PDF document text
- https://immsac.pe/sgi_userfiles/userfiles/files/3188705913.pdfIn PDF document text
- http://classiccar-jp.com/js/upload/files/7185658556.pdfIn PDF document text
- https://wscnaturalhealings.com/wp-content/plugins/super-forms/uploads/php/files/91215034b046a16273173fee92a7d581/89609407936.pdfIn PDF document text
- http://kidsjeodo.com/images/files/13562545223.pdfIn PDF document text
- https://westhigienia.hu/editor_up/74644831472.pdfIn PDF document text
- http://cateringkieuan.com/uploads/userfiles/file/58968444441.pdfIn PDF document text
- https://oolong-dining-co.com/webroot/editor-uploads/files/morupamezofefitav.pdfIn PDF document text
- http://aftckwt.com/uploads/file/59335857238.pdfIn PDF document text
- http://rlmlaw.com/images/edit_images/file/88877524570.pdfIn PDF document text
- https://clinicaabrahaoosta.com.br/ckfinder/userfiles/files/20471343039.pdfIn PDF document text
- http://only-svet.ru/upload/files/bupokuz.pdfIn PDF document text
- http://shrlie.com/upload_fck/file/2021-9-12/20210912063739796164.pdfIn PDF document text
- https://kermoulin.com/userfiles/file/33114753101.pdfIn PDF document text
- https://eminencesolutions.in/resources/userfiles/file/81968822675.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_off0000f881.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF881 | 17068 bytes |
SHA-256: 1900ee8505cf2b4c98a28a6c5599b8312ae44315db237aad9b613a5b1f637deb |
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font_01_sfnt_off000124b4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x124B4 | 11172 bytes |
SHA-256: f9a1936410bcea837de72f2c6824c1c847509527935f8178bee2834257bd3aee |
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font_02_sfnt_off00013ea7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13EA7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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