MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous external links, many hosted on disposable domains, suggesting a link farm or redirection scheme. The document body, though heavily obfuscated, contains text related to 'high school admission form format pdf', indicating a lure. The presence of PDF_SEO_LINK_FARM and PDF_SEO_DISPOSABLE_LINK_FARM heuristics, along with ClamAV detection as Pdf.Phishing.Trojan, strongly indicates a malicious intent to redirect users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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/award?keyword=high+school+admission+form+format+pdf PDF link annotation
- https://cdn-cms.f-static.net/uploads/4462354/normal_601884fc80859.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4382194/normal_5fc79e520fec8.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4448992/normal_5fcf183a946de.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4383928/normal_60311f695045e.pdfIn PDF document text
- https://cdn.sqhk.co/tonukabonuwe/difIjdT/pozarinixo.pdfIn PDF document text
- http://dixojele.22web.org/zijusubixejubigejowo.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4492294/normal_5fdbcefa0d389.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4453551/normal_603d0a18cde64.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4463275/normal_602e117238b59.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4468551/normal_5ff87028f3e12.pdfIn PDF document text
- https://cdn.sqhk.co/konumapedowe/7GTezhi/sutozozivosujupopadavivo.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4393029/normal_601dccef4a703.pdfIn PDF document text
- https://cdn.sqhk.co/porekige/gggeib5/roller_ballard_funeral_home.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4492897/normal_5fe432a6e4b2c.pdfIn PDF document text
- http://rasazevedip.22web.org/tabatazu.pdfIn PDF document text
- https://cdn.sqhk.co/pufojoloz/gigjeKv/online_java_1._8_ide_compiler.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://d56a38bf-d62e-453c-9b5b-5b2fe88aea46.filesusr.com/ugd/359e64_fae24a76debd4d60bbc4f2918bf45cac.pdf?index=trueIn PDF document text
- https://5e024257-ca51-40df-b6b5-a3104c7b7124.filesusr.com/ugd/97368a_1fce446d6662435a860ef10968629e83.pdf?index=trueIn PDF document text
- http://nuzavaxevarap.epizy.com/vs_code_java_formatting.pdfIn PDF document text
- https://6c71f620-b6e5-46cc-9e58-526c5f0a7a41.filesusr.com/ugd/1c90dc_40b8eb57029344fb960027443f84b5d4.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/b017d28b-5ab7-4eef-8ce2-bca9c9e184bb/21935679362.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/70e57fe0-d207-4e86-b1ce-1ede666fc570/lisofilodubewazabipoduv.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00010364.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10364 | 5528 bytes |
SHA-256: 138150b107ee304b1f0f5ad5fb102d807c780fb8aa3e47513b57553ac1334d3b |
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font_01_sfnt_off00011611.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11611 | 10388 bytes |
SHA-256: e40c8899f85e4287b76cef981792a2b3086ad8f1d2e3fe4b8131a180a21c0115 |
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