MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
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 contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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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://mezovuduw.ru/strik?utm_term=ejercicios+de+administraci%25C3%25B3n+de+medicamentos+en+enfermer%25C3%25ADa+resueltos+pdf PDF link annotation
- https://cdn.sqhk.co/mumeriretepi/jfhgjja/52840895563.pdfIn PDF document text
- https://cdn.sqhk.co/leruwexikud/AJjdDja/cruise_companies_australia.pdfIn PDF document text
- http://fatunatet.getenjoyment.net/vizizosimow.pdfIn PDF document text
- https://cdn.sqhk.co/lilavokolet/72sHYBO/final_blade_redeem_code.pdfIn PDF document text
- https://riximuboderex.weebly.com/uploads/1/3/4/7/134744564/c79557ea3c.pdfIn PDF document text
- https://vizosajigu.weebly.com/uploads/1/3/1/3/131381839/gategatorina-xuseze-vefumubodejo.pdfIn PDF document text
- https://cdn.sqhk.co/patagarinixa/bIjbHje/redarc_cable_size_and_voltage_drop_calculator.pdfIn PDF document text
- http://fontawesome.iohttp://fontawesome.io/license/In PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/99d49e21-ecfe-4d81-936b-ad0c0b951e09/what_skills_do_you_need_for_accounting_and_finance.pdfIn PDF document text
- https://9fbaa0db-fe9e-443e-b503-3d02ea494c21.filesusr.com/ugd/d417e9_dc4c63d528e94711ab51228a165fd055.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/8d885ff5-7386-4a16-9223-24c669d36c53/10_pasos_para_lactancia_materna_exitosa_oms.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/98257c0e-8a3a-484e-ba5f-2e9b548c871c/9014463215.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/739281e2-c3e6-423b-97f1-ba84db853b0c/fly_tying_bench_for_sale.pdfIn PDF document text
- http://bogalibamadom.myartsonline.com/what_another_word_for_younger_sister.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/88a87d56-36b6-4bac-bc2e-43fc39656ff1/vermont_castings_encore_replacement_parts.pdfIn PDF document text
- http://dirulibas.onlinewebshop.net/28317087948.pdfIn PDF document text
- https://b27aca93-056c-4dd2-83a6-fd909c9f709d.filesusr.com/ugd/2ba3ac_e662fcf56e124b13a907b307ffd9012f.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/b3e379e8-0c9a-40a5-be09-2d29f0eb0d9b/is_choice_hotels_legit.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://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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00013e52.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13E52 | 2600 bytes |
SHA-256: 9141e8f0c42f3797c915b63d8dc37d4151ce9592f72f91cdded044055560007c |
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font_01_sfnt_off000149e8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x149E8 | 5524 bytes |
SHA-256: b23e10002a552015032392010c3a71cf8dc2bce383b029a8c75f7a8bb74f9ec4 |
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font_02_sfnt_off00015c60.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15C60 | 14496 bytes |
SHA-256: 7f948288b9bb88bcbd72651ef2ac56369e94e8bca8337505821dfddd42266fab |
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font_03_sfnt_off00018a99.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18A99 | 16792 bytes |
SHA-256: 24eec7dd13ffd6760cf448e98afaff3d9f3e67d416911dc5c642fce674b62558 |
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