MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded links, many of which are hosted on disposable domains and appear to be part of a link farm designed to redirect users. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a tactic to obscure the true destination by using many distinct hosts. The presence of a Google feedproxy URL, while marked benign, suggests an attempt to disguise malicious traffic or leverage legitimate services for initial redirection.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
Heuristics 5
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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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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://auto4-spb.ru/public/images/ckfinder/files/2514361497.pdf In PDF document text
- http://sibstroiexp.ru/userfiles/file/44467694614.pdfIn PDF document text
- http://sisparts.pl/zdjecia/fck/file/lekopimopibezudinitak.pdfIn PDF document text
- http://school19-zav.ru/userfiles/file/fovuvutus.pdfIn PDF document text
- http://bajcsidavidfoto.com/_user/file/doginidudegufawom.pdfIn PDF document text
- https://gotoko.com/cmsv2/upload/files/49541425834.pdfIn PDF document text
- http://machinegroup.ru/img/outer/files/23225964253.pdfIn PDF document text
- https://girisimhaber.com/uploads/file/26763381684.pdfIn PDF document text
- https://poganyvolgyi.hu/userfiles/file/sedebonuxesako.pdfIn PDF document text
- http://giaydantuongphongngudep.com/images/news/file/28060805587.pdfIn PDF document text
- http://dorapeyzaj.com/userfiles/file/22217909957.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613cc6cf9f49f---82796087898.pdfIn PDF document text
- https://trungtammatnamviet.vn/upload/files/87188108650.pdfIn PDF document text
- http://finadev-groupe.com/userfiles/file/topokaxuwizusok.pdfIn PDF document text
- https://comillaspostgrado.es/userfiles/file/zaburer.pdfIn PDF document text
- https://bitree.com/ckfinder/userfiles/files/74385518509.pdfIn PDF document text
- http://www.ciesol.es/ckfinder/userfiles/files/sijotometaxivolibasabag.pdfIn PDF document text
- https://prestinieurope.com/userfiles/files/66024436004.pdfIn PDF document text
- https://5ky13lu3-1251.com/contents/files/4542734474.pdfIn PDF document text
- https://salvatoredivilio.it/userfiles/file/2998005255.pdfIn PDF document text
- http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/265840c5d80ed67fe1552e1ba7c5784e/89372226342.pdfIn PDF document text
- https://micro-logic.ro/images/uploaded/file/wununapaxi.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=pokemon+go+spoofer+apk+downloadPDF 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_off00012c20.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12C20 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00014437.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14437 | 10828 bytes |
SHA-256: aae013daa8bf70e5136c2fab7ec18773e2286f3f962ac71974add578948ac2eb |
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font_02_sfnt_off00015d11.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15D11 | 20772 bytes |
SHA-256: 522e405af0add6549d862c2d42d3485f94e454575f4ad4043b655ae537196bcf |
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