MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains a large number of external links, identified as a link farm. The primary malicious URL observed is https://mezovuduw.ru/award?keyword=e+spanier+algebraic+topology+pdf. While no scripts were explicitly extracted, the heuristic 'PDF_SEO_LINK_FARM' and the ML classifier strongly indicate malicious intent, likely for SEO manipulation or to redirect users to phishing sites. The ClamAV detection further supports its classification as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 6
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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 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/award?keyword=e+spanier+algebraic+topology+pdf PDF link annotation
- https://static.s123-cdn-static.com/uploads/4412887/normal_5fc953302e932.pdfIn PDF document text
- https://lexixare.weebly.com/uploads/1/3/4/3/134354354/1239239.pdfIn PDF document text
- https://kuzeloxowew.weebly.com/uploads/1/3/4/3/134330257/powazotupu_jepuxe.pdfIn PDF document text
- http://siwosupegejolop.medianewsonline.com/75193724939.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4415308/normal_6041aaf8e23e9.pdfIn PDF document text
- https://piworanup.weebly.com/uploads/1/3/2/6/132681558/816281ba8b.pdfIn PDF document text
- https://firalikagux.weebly.com/uploads/1/3/2/7/132740609/feretel.pdfIn PDF document text
- https://renesixedobalew.weebly.com/uploads/1/3/0/9/130969137/dejowuputumovig-zudidafugenuna-limowefe-zofupanuni.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://uploads.strikinglycdn.com/files/c0595d09-7136-4e0f-b697-d4c94be212fc/jofoxelivode.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e9e79cf2-7c6e-43e1-a463-5a8c31eaf0ec/fantastic_beasts_and_where_to_find_them_trailer_1.pdfIn PDF document text
- http://likutolejit.onlinewebshop.net/vofefurudifapemonewazedu.pdfIn PDF document text
- https://s3.amazonaws.com/zulezov/39753684088.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/eb63f6c3-0bc1-4e21-bea8-f1a23535493d/bevifobekanin.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e273ee18-5ae5-486d-95b9-77061d146fe0/nipopigesatovar.pdfIn PDF document text
- https://s3.amazonaws.com/jopomodilamego/carroll_diagram_worksheet_year_4.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/cafd285c-8130-475a-a523-ec98e4fa249a/wafewom.pdfIn PDF document text
- https://s3.amazonaws.com/tevomenil/checklist_template_word_doc.pdfIn PDF document text
- https://s3.amazonaws.com/sepawi/mawodumugavema.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4f68fd96-e309-402d-88b3-15a15d08d258/29794345845.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2c805d0e-c574-4408-ba8f-d634e993cfa5/2000_gmc_sierra_starter_wiring_diagram.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
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e02b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE02B | 5308 bytes |
SHA-256: 20f89b0e6116972e04582464b73751bbd0020417096a2570a4b046f1092c6ee9 |
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font_01_sfnt_off0000f23e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF23E | 11172 bytes |
SHA-256: 56754d019dc2975375daecd3b12782b196844561dee52f1d4a3184196a009ba5 |
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font_02_sfnt_off000116e4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x116E4 | 4324 bytes |
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f |
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