MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many pointing to other PDF files hosted on distinct domains, indicating a link farm or redirection scheme. The 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic and the high number of unique URLs strongly suggest a malicious intent, likely to distribute phishing content or further malware. The ML classifier and ClamAV detection further support the malicious classification.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
Heuristics 5
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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 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 http://byty-pardubice.eu/UserFiles/File/guraxazej.pdf In PDF document text
- http://aa-nusd.jp/tileweposado.pdfIn PDF document text
- https://www.profiemg.cz/upload/ck/files/zivosub.pdfIn PDF document text
- http://farmina.ru/uploads/files/dabexoronokog.pdfIn PDF document text
- http://tuivaivietnam.com/uploads/files/94182478656.pdfIn PDF document text
- http://ricettebiagi.it/uploads/assets/file/48989349469.pdfIn PDF document text
- http://lyzebrno.cz/userfiles/file/surubemerufuguta.pdfIn PDF document text
- http://mcap.cz/images/uploadedimages/file/29282322663.pdfIn PDF document text
- http://jiin-torng.com/uploadfiles/20210904181009.pdfIn PDF document text
- http://antonio-pelella.eu/userfiles/files/46147813952.pdfIn PDF document text
- http://www.miyadenthai.com/image/upload/File/xexofusotikagekafi.pdfIn PDF document text
- http://baovekhucongnghiep.com/upload/files/jagapuda.pdfIn PDF document text
- https://pisausakti.com/contents/files/taxadigatavuzadu.pdfIn PDF document text
- http://fobosgrunt.ru/files/ckfinder/files/fuxatufito.pdfIn PDF document text
- http://ngocphuocjsc.com/public/default/ckeditor/files/96244107763.pdfIn PDF document text
- https://manusingh.org/scgtest/eec-new/codelibrary/ckeditor/ckfinder/userfiles/files/42008707503.pdfIn PDF document text
- https://xulynuocphangiathinh.vn/images/pic/file/xezuxanajukagemumepuve.pdfIn PDF document text
- https://nbcmedia.vn/ckfinder/userfiles/files/rusisujef.pdfIn PDF document text
- https://michaels-limo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613bd2bbef7d9---74701914450.pdfIn PDF document text
- http://swaptoys.org/ckeditor/uploads/files/roxibeniwoge.pdfIn PDF document text
- http://tangiahoang.vn/Images_upload/files/kasakonasiba.pdfIn PDF document text
- http://ewhamd.net/upFiles/ckeditor/files/2469851213.pdfIn PDF document text
- http://lisahyatthealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/161476a0b57c92---bujudekukojazom.pdfIn PDF document text
- https://nissanzorba.ro/ckeditor/ckfinder/userfiles/files/72421822610.pdfIn PDF document text
- http://dailymaytrogiang.com/userfiles/files/tonimelo.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=send+email+kotlinPDF link annotation
- 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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b057.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB057 | 10308 bytes |
SHA-256: 9247a7d7138ddcf87acc852651fe3b02e7ee58ff2ab90f25686b8ed518c89b7a |
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font_01_sfnt_off0000c787.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC787 | 17012 bytes |
SHA-256: 661f72e7270de23a9f5264fbdefdddc0b7621c9b5922aa61b39962b6a19b58f4 |
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font_02_sfnt_off0000f3f6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3F6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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