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 0.9954
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://seumenha.ru/strik?utm_term=data+structures+and+problem+solving+using+java+ed+4 PDF link annotation
- https://direfuxapiw.weebly.com/uploads/1/3/4/3/134371974/7129506.pdfIn PDF document text
- https://dopijixofovaje.weebly.com/uploads/1/3/4/6/134692352/8c11f50974b6cc2.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4391308/normal_605c6e62ca95b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4489853/normal_6052d0d54ac53.pdfIn PDF document text
- http://zuwigef.22web.org/40264945226.pdfIn PDF document text
- https://kumobavogi.weebly.com/uploads/1/3/2/3/132303339/rotinixilireni.pdfIn PDF document text
- https://mufiguxibetifo.weebly.com/uploads/1/3/1/6/131607440/523b9528509.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4365636/normal_60021b41366a4.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4423137/normal_5fcf821a2bc63.pdfIn PDF document text
- https://venevivoxeda.weebly.com/uploads/1/3/1/8/131857756/0273be23.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
- http://tetiduba.rf.gd/udit_agarwal_algorithms_design_and_analysis.pdfIn PDF document text
- https://7404da97-7fcf-4d5f-9d5f-3f8644e6773a.filesusr.com/ugd/35f767_38405e2d9d234a2b9416de1cd11f11e2.pdf?index=trueIn PDF document text
- https://aa4c2489-c93b-4667-afab-104bf5323bad.filesusr.com/ugd/8b49c6_eab8460e49dc4c83b582b9558f63d163.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/jenisozazewubo/edema_pulmonar_cardiogenico.pdfIn PDF document text
- https://9cf93ecd-64ee-4ad6-afcc-f350577a7522.filesusr.com/ugd/c4dbd3_0b54858701c34c35a467bb27d20430fc.pdf?index=trueIn PDF document text
- http://rolewafofe.epizy.com/werix.pdfIn PDF document text
- https://s3.amazonaws.com/gaxuremewuger/crazy_frog_2_game.pdfIn PDF document text
- http://tirujukixiw.epizy.com/fated_alyson_noel.pdfIn PDF document text
- https://s3.amazonaws.com/kotodur/vodot.pdfIn PDF document text
- http://potexekiliju.rf.gd/bufikerogedobo.pdfIn PDF document text
- http://vavogave.rf.gd/soxadeziguge.pdfIn PDF document text
- https://a819be37-316e-4347-83bc-b067fb6953c8.filesusr.com/ugd/d5662a_3d3f01cc01ef48bca37056ed91c65039.pdf?index=trueIn PDF document text
- http://madulok.epizy.com/gizawukawisirugedona.pdfIn PDF document text
- https://s3.amazonaws.com/jezaxojipevu/52878484325.pdfIn PDF document text
- https://3ae4d138-4ba3-4962-98fb-1b98b40a6a82.filesusr.com/ugd/38062a_772de1e429d2438d88373cf2c7e4d93f.pdf?index=trueIn PDF document text
- http://tamugaza.rf.gd/mobegemidavukuwe.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_off0000f209.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF209 | 5640 bytes |
SHA-256: 6211113a3545838cd053cabf9607ce068a91ecf1532495a73688726b89616673 |
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font_01_sfnt_off00010525.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10525 | 11064 bytes |
SHA-256: 4e89f8365c7754468cd195c29adf25baaf369b580bdbaa0502bf9f25ba36ce3a |
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font_02_sfnt_off00012ac7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12AC7 | 4324 bytes |
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3 |
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