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 0.9995
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://kuzutuzo.ru/strik?utm_term=america+the+essential+learning+edition+%2528second+edition%2529+%2528vol.+2%2529 PDF link annotation
- https://xumizobizuzu.weebly.com/uploads/1/3/4/6/134688834/aa9f95.pdfIn PDF document text
- https://sivavodafewe.weebly.com/uploads/1/3/4/4/134484486/sasufavitoruzekaz.pdfIn PDF document text
- https://juporolo.weebly.com/uploads/1/3/1/3/131380745/8889142.pdfIn PDF document text
- https://xovigojimere.weebly.com/uploads/1/3/4/8/134854331/3256da853a.pdfIn PDF document text
- http://ruwemaroxi.22web.org/50886408643.pdfIn PDF document text
- http://pemeturaw.iblogger.org/vatalatib.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/331054a5-80ab-408b-8dc4-7139d7cf0a63/nuratijurunaxatovu.pdfIn PDF document text
- https://e1c07d4e-6587-4767-b76f-5dea9cf3e327.filesusr.com/ugd/51a829_601781a2825e411abdb57c08e9b53d34.pdf?index=trueIn PDF document text
- https://a54de82d-0003-4787-801b-d7ee719c780a.filesusr.com/ugd/8d57bd_c636712e68bc4233becd547bd55204e4.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/0aedecde-6538-4f1a-a1ec-455206affa0c/gozagebenej.pdfIn PDF document text
- https://0bef8565-087b-457a-960c-b0529baba50c.filesusr.com/ugd/638000_3ceaa6cb96154a439f66223425e70a8f.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/f826f281-e82c-4249-b532-c7c1d95db55f/the_maze_runner_series_book_1.pdfIn PDF document text
- http://woxebolinos.rf.gd/obligationenrecht_2019.pdfIn PDF document text
- https://d05b2b94-0af3-401c-a6ef-75d00d0b58ae.filesusr.com/ugd/3bca44_03dad48eb35d4463a453c5da3c6cafc1.pdf?index=trueIn PDF document text
- https://49550882-97ce-44db-a38b-6e383bb81149.filesusr.com/ugd/062c90_32bb7514894241ab915b0d00842a8dcd.pdf?index=trueIn PDF document text
- http://sowarom.rf.gd/todo_sobre_cactus_y_suculentas.pdfIn PDF document text
- https://01c19f78-c7d0-441a-b56a-8672493f87de.filesusr.com/ugd/9d66c7_6dd643d6ba8f44f1951d2fe0e4697cbf.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/9c88abf5-3620-4d07-8d53-bf6099f8c8bb/zasagibijerijevalavipa.pdfIn PDF document text
- https://84d5b3ab-51dd-4312-87b7-51df18fb3b26.filesusr.com/ugd/9ea9b6_678a76761eee465e881943eee64e3d03.pdf?index=trueIn PDF document text
- http://jeduvuvojupan.rf.gd/banking_preparation_books_download.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/097ae71b-4d93-4bf1-b4b2-55722bd69ab9/strong_verbs_worksheet_3rd_grade.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b3698568-1194-4322-b48a-868d0243dae9/stm32f4_reference_manual.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_off0000dbfe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDBFE | 5720 bytes |
SHA-256: 5f47e40994fac10ddf03e341d34d43ca711e15414faed40891d45be2b4f5ea1a |
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font_01_sfnt_off0000ef59.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF59 | 10552 bytes |
SHA-256: 608516aaec945e3110d33df1c8d49714376c32504b0480dc7061ca8f552a56e1 |
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