MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains numerous external URIs, many hosted on disposable domains, suggesting a link farm or phishing lure. The presence of PDF_SEO_DISPOSABLE_LINK_FARM heuristic further supports this, indicating the PDF is designed to redirect users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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 https://nipisod.ru/strik?utm_term=chemistry+an+atoms-focused+approach+2nd+pdf PDF link annotation
- https://cdn-cms.f-static.net/uploads/4420752/normal_600a9f9da6780.pdfIn PDF document text
- https://cdn.sqhk.co/jodariwem/oUoxzSN/93089741026.pdfIn PDF document text
- http://milafikolume.iblogger.org/the_wolf_among_us_mali_apk.pdfIn PDF document text
- https://cdn.sqhk.co/jigugabopu/EkVjbgi/the_survival_game_apk.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4477409/normal_5fe872cf61485.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4466154/normal_6018a072baf2d.pdfIn PDF document text
- http://gojoxoxuda.22web.org/2083224523.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4420014/normal_604de1e9be9b0.pdfIn PDF document text
- https://cdn.sqhk.co/vulovosovem/jhfQGCl/red_lobster_specials.pdfIn PDF document text
- https://cdn.sqhk.co/romemanir/lggz3ii/sniper_games_xbox_one_2019.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4388285/normal_6009ffbd16d9f.pdfIn PDF document text
- http://pobegikobej.iblogger.org/59637535922.pdfIn PDF document text
- http://fujepopini.22web.org/15005157792.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://1c514d3f-4aca-4c14-a2cc-94ef866bc6c7.filesusr.com/ugd/860217_967a11afdf024747b98529d55facce6b.pdf?index=trueIn PDF document text
- https://11f44e1d-c86f-4be6-baa1-90970e7c24f5.filesusr.com/ugd/a298ce_ea647dbb879f4260bf8ca7202f902d35.pdf?index=trueIn PDF document text
- http://nowuzapifara.rf.gd/83101108441.pdfIn PDF document text
- https://b0c090b1-cb02-46d8-8a69-3fb9d82636b6.filesusr.com/ugd/4dbf3f_b2950655d05c4ef8b181556f1af380d7.pdf?index=trueIn PDF document text
- http://pakewerulawe.rf.gd/baranauskas_anyki_ilelis.pdfIn PDF document text
- http://dofumuligo.rf.gd/37896259220.pdfIn PDF document text
- https://c7972686-9310-4d97-8ac3-15e828887225.filesusr.com/ugd/8a419d_8bda75e42d8847d3b1711cfc7314f694.pdf?index=trueIn PDF document text
- https://50c84cdf-c8d4-407e-a307-361b94491100.filesusr.com/ugd/f2656e_c227d20aec4b4982b5cdd10d5151081c.pdf?index=trueIn PDF document text
- https://2b81f3f0-3f46-42ff-87a7-5865dd96cd3c.filesusr.com/ugd/fb41f9_9d3f11b2eaed4069a59acd438de6505d.pdf?index=trueIn PDF document text
- https://700ceb37-22d2-47c5-9888-d858af679aee.filesusr.com/ugd/c345b0_3f781872c139405a916b0253f9970634.pdf?index=trueIn 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://scripts.sil.org/OFLIn 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_off0000dd1e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD1E | 5532 bytes |
SHA-256: 84c74044a03f9858edd1dc7a1a634a72f5fc4fb5768c2e3d70ed8f0318db8025 |
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font_01_sfnt_off0000efd0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFD0 | 10428 bytes |
SHA-256: 86f78b13481935496187342b628acc94aba4469f35c847345e271cf0f750bddf |
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font_02_sfnt_off000113fb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x113FB | 16084 bytes |
SHA-256: 29b8095464fa9501f2379a4c43ca3ba1b1df604f87f2abcbe11fa9bdafb8ec10 |
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