MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous external links, many pointing to disposable hosting, suggesting a link farm designed to redirect users. The embedded URL `https://jumiwimov.ru/strik?utm_term=tkam+socratic+seminar+questions+by+chapter` is particularly suspicious and likely leads to a malicious site. ClamAV and ML classifiers also flagged this PDF as malicious, indicating a phishing or trojan distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://jumiwimov.ru/strik?utm_term=tkam+socratic+seminar+questions+by+chapter PDF link annotation
- https://cdn-cms.f-static.net/uploads/4389582/normal_5fd67ffe5eed9.pdfIn PDF document text
- http://vijevejumozugim.sportsontheweb.net/gugoliso.pdfIn PDF document text
- https://mebedepubini.weebly.com/uploads/1/3/0/8/130813558/xinidazizapusurikofa.pdfIn PDF document text
- http://liwadaxezaf.getenjoyment.net/disokusejanizazirinos.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4445735/normal_5ff663c2dd922.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4488339/normal_5ff1402fd9a20.pdfIn PDF document text
- https://jaduxokapatusiw.weebly.com/uploads/1/3/5/3/135301375/8194793.pdfIn PDF document text
- https://vamexerop.weebly.com/uploads/1/3/6/0/136085595/derebufejisekim.pdfIn 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/b03db306-fd32-4c20-9000-05c7aebaba80/24039911584.pdfIn PDF document text
- https://97e6e6c8-040d-427c-ad66-6ef02350ae38.filesusr.com/ugd/9c523c_4631a081524847a2a3eb64b50e63abca.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/f45baa34-0d75-4371-9d8c-5570db9b47af/2504701407.pdfIn PDF document text
- https://ce3a146a-d504-4efb-981c-4593fb85d965.filesusr.com/ugd/5b5da7_89b476256b7d404090566c21983e704e.pdf?index=trueIn PDF document text
- https://03df74f7-894d-4c84-999e-da2b33eb06f5.filesusr.com/ugd/4c7733_ae612a7300764212b35ee645b58f75b6.pdf?index=trueIn PDF document text
- https://47a25507-5c4f-4e73-9b7c-0c49514c8174.filesusr.com/ugd/e00bd3_70a996398a53417687dc37278123e902.pdf?index=trueIn PDF document text
- https://c06d174a-caca-4ab2-b5a0-4525cd3135d4.filesusr.com/ugd/856cea_86b27f19a19f4c9da08d50ef4b24ecbf.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/111a690e-3f4e-4b6a-8f92-e48c71804c4a/67923022685.pdfIn PDF document text
- http://gegilifopom.myartsonline.com/batch_mixing_plant.pdfIn PDF document text
- https://b56e00ce-d729-42e9-814b-b9a4b194f5ba.filesusr.com/ugd/f6f93f_41f7148558a149aaab130da6d697bf08.pdf?index=trueIn PDF document text
- https://22e365c6-0853-42e1-82f8-83473bf9c0bf.filesusr.com/ugd/217d68_6b5168e15e154affb651abe939356006.pdf?index=trueIn PDF document text
- https://de2a8dfc-dc8d-4d62-be3b-f97abdd17bf6.filesusr.com/ugd/c722c2_55daa2efd9ee4ff2abfe6492aba462ed.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
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f74b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF74B | 5520 bytes |
SHA-256: 593132d2bb04759ae8822dca5e5acc5a17dbd13737cad56bbefed39cbd0d3f19 |
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font_01_sfnt_off000109f6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109F6 | 10660 bytes |
SHA-256: 668a2b3df2a215cf8f2987442a02b3fec03b6b0d2eb292f071e164087e5c2709 |
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