MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links, many pointing to compromised CMS upload directories or disposable hosting, indicative of a link farm used for phishing or malware distribution. The ML classifier and ClamAV detection strongly suggest malicious intent. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure points to a malicious PDF.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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://custom-mugs-factory.com/uploadfile/files/pumidol.pdf In PDF document text
- https://www.urban-quartz.co.uk/wp-content/plugins/super-forms/uploads/php/files/5320588188eaa60327c7cd9e49d539b6/26963107742.pdfIn PDF document text
- http://king-pro.com/userfiles/files/74749922657.pdfIn PDF document text
- http://didopack.com/files/nebolunemizu.pdfIn PDF document text
- http://cwpni.com/userData/ebizro_board/file/31249060536.pdfIn PDF document text
- http://abwingsjanaf.com/uploads/files/jefenebemawuduja.pdfIn PDF document text
- http://hospitalitan.com/sites/default/files/file/57727174486.pdfIn PDF document text
- http://mega.kz/media/upload/files/puzavufanedekozizasidofe.pdfIn PDF document text
- http://smart.sut.ac.th/tsme/src/lib/ckfinder/userfiles/files/19884878010.pdfIn PDF document text
- https://pincodehub.in/userfiles/file/taniwitozokadekigaz.pdfIn PDF document text
- https://www.c2commercial.com/wp-content/plugins/super-forms/uploads/php/files/5913fe71a4aa750abc9ba553a6bce3c7/nevegumolejagosowasovitum.pdfIn PDF document text
- https://alpasol.e-giant.net/upload/files/13304783875.pdfIn PDF document text
- https://smartmedia.ro/app/webroot/files/userfiles/files/vipowezepegutikijotaluge.pdfIn PDF document text
- http://victoryelectricalsupply.com/ckfinder/userfiles/files/dowafe.pdfIn PDF document text
- http://kortennis.co.kr/B/ck/ckfinder/userfiles/files/jagafoxepe.pdfIn PDF document text
- http://ontheedgeofnow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614208c31a45e---kamepabomaf.pdfIn PDF document text
- https://sua.vn/uploads/userfiles/file/63514664339.pdfIn PDF document text
- http://ahlhy.com/uploads/file/172122333009.pdfIn PDF document text
- http://www.aceitunasdelguadalhorce.es/ckfinder/userfiles/files/95428364089.pdfIn PDF document text
- https://meridianchem.com/meridian/ckfinder_userfiles/files/42079680621.pdfIn PDF document text
- http://cnhhgj.com/upfiles/userfiles/file/widofariluj.pdfIn PDF document text
- http://electriccityusa.com/images/fck_uploads/file/85519120490.pdfIn PDF document text
- http://travellerisland.com/files/padodezenemogur.pdfIn PDF document text
- http://bjhtdszdh.com/v15/Upload/file/20219262313505842.pdfIn PDF document text
- https://bandotrading.com/uploads/file/dijoritobu.pdfIn PDF document text
- https://feedproxy.google.com/~r/Gsjc/~3/7xhmvLXWVJc/uplcv?utm_term=problemas+de+ecuaciones+de+segundo+grado+de+2+eso+resueltosPDF 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_off0000fcec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFCEC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00011503.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11503 | 11072 bytes |
SHA-256: ac4fc1b71ea97923c664122b7db3b4abd968f1baed6a22cc8a0c1d546daf949a |
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font_02_sfnt_off00012ea0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12EA0 | 20508 bytes |
SHA-256: becb17766d0125b48aae28be76a6f81c6f897966cd9c7033efd9bfae6b7bd5c5 |
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