MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many hosted on disposable domains, indicating a malicious intent to redirect users. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' strongly suggests this is a link farm designed to host many links on low-reputation domains. ClamAV also detected this as a phishing trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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://synerhu.ru/uplcv?utm_term=poco+f3+geekbench+5 PDF link annotation
- https://editora-arara-azul.com.br/site/admin/ckfinder/userfiles/files/gobatumas.pdfIn PDF document text
- http://purel-biopharm.com/upload/files/55350812652.pdfIn PDF document text
- http://gutachterbewertung.de/userfiles/file/savuwafubejinakikuzeri.pdfIn PDF document text
- https://ip-pharma.net/data/files/99243704139.pdfIn PDF document text
- https://clubkdo.fr/img/pics/files/sefali.pdfIn PDF document text
- http://valencia.thepokeluau.com/uploads/files/77325390204.pdfIn PDF document text
- http://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b1f7f13071---wugadimup.pdfIn PDF document text
- http://ristoranteibucanieri.it/userfiles/files/28295004280.pdfIn PDF document text
- http://sibinetweek.ru/userfiles/file/9614896784.pdfIn PDF document text
- http://mail.teleserviciomalaga.com/ckfinder/userfiles/files/kusadam.pdfIn PDF document text
- http://hoanhaochemical.com/uploads/files/daxonetufofefakaren.pdfIn PDF document text
- http://ophirtonhotel.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16145623873055---xaponutulurax.pdfIn PDF document text
- http://boekenwinkelindex.nl/images/uploads/71438720996.pdfIn PDF document text
- http://coomargroup.com/ckfinder/userfiles/files/40619091210.pdfIn PDF document text
- http://techsystem.gr/data/uploads/ckeditor/files/noxebeb.pdfIn PDF document text
- http://portofmiamitunnel.com/system/js/back/ckfinder/userfiles/files/wikakar.pdfIn PDF document text
- http://naviway.su/upload/files/gamikedatub.pdfIn PDF document text
- https://classykitchen.pl/web/uploads/files/905974570.pdfIn PDF document text
- https://fiberglasssupplydepot.com/userfiles/files/fulukabetuzuxodapifubojuw.pdfIn PDF document text
- http://studioaba.net/userfiles/files/97850051700.pdfIn PDF document text
- http://hanleyresources.com/images/kajonodusi.pdfIn PDF document text
- http://lagunaapartman.hu/images/user/file/16839339265.pdfIn PDF document text
- https://eletmodguru.hu/files/files/ruxidisugo.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_off0000e3a3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3A3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fbba.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFBBA | 10488 bytes |
SHA-256: 363e31046604d509ced4906c36a9a77f6a084980712d33a9cbe543cab1ee7ee4 |
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font_02_sfnt_off0001138d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1138D | 18224 bytes |
SHA-256: cd5e3744743a906c89f4435df9b530b0177212990dc7827ed5263b6efd1f1dce |
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