MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains a large number of external links to other PDF documents hosted on various domains, many of which appear to be disposable. The primary URL, 'https://dugedepap.ru/strik?utm_term=opinion+essay+structure+pdf', suggests a phishing or SEO manipulation tactic. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or distributing unwanted content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9994
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://dugedepap.ru/strik?utm_term=opinion+essay+structure+pdf PDF link annotation
- https://wodirukuz.weebly.com/uploads/1/3/5/3/135398055/pasovalumilagu.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365584/normal_605d6c4e48b56.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4497071/normal_5fff7c698435c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4506131/normal_603ed5f01de1f.pdfIn PDF document text
- https://nasebawesor.weebly.com/uploads/1/3/1/6/131637432/dfc82.pdfIn PDF document text
- https://xizerusepu.weebly.com/uploads/1/3/4/3/134308384/bedesajojozejerun.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367903/normal_602f283f9e66f.pdfIn PDF document text
- https://torudedo.weebly.com/uploads/1/3/4/3/134352944/4745777.pdfIn PDF document text
- https://tudepaweper.weebly.com/uploads/1/3/4/6/134607512/27aa1b7b8.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4498392/normal_600794cbbb44e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4466680/normal_601981abdcdc6.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4383802/normal_601a3914ba844.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4493610/normal_60158878619df.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4450345/normal_60124683bdbda.pdfIn PDF document text
- https://kafijojiwagovi.weebly.com/uploads/1/3/5/3/135387916/70a91f073b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4491445/normal_605bcaeb45c82.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/022c3ed5-33d8-432b-a2cb-fbb283a18c8b/is_breath_of_snow_and_ashes.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/aa17580e-4576-4c66-b94f-7b058c4fa9cb/negoloxobunazufolowup.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/09ee8d42-2c72-49a1-b333-a121e186be28/dumuvisanurorikipununene.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5d671324-d486-4612-b4f0-422e71c32d09/jeritekitodigijusetobem.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/81bde6a5-e910-4d45-a59d-61176e5fe01f/foolproof_module_test_answers.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ef678692-e713-451a-ab75-623403986348/56228029407.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/cebea00a-396f-42d0-a5f3-028698b0f44a/how_many_calories_in_a_small_caramel_iced_coffee_from_dunkin.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_off0000f77d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF77D | 5248 bytes |
SHA-256: a81a957dd5827b54898943bb703996b7a9409b059502b540d040dc43746e7a4e |
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font_01_sfnt_off0001096d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1096D | 10636 bytes |
SHA-256: 9814885710e5ae7873a3334b5abc87d92fda7fc87854d27d0e329988e1bcf7c0 |
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