MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, directing users to various compromised WordPress sites and disposable hosting domains, often with UTM parameters suggesting search result lures. The embedded URLs, such as 'https://ketchas.ru/uplcv?utm_term=uzumaki+junji+ito+manga+pdf', are designed to trick users into downloading further malicious content or visiting phishing sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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 https://ketchas.ru/uplcv?utm_term=uzumaki+junji+ito+manga+pdf PDF link annotation
- https://hpx.com.ua/wp-content/plugins/super-forms/uploads/php/files/6ac98baa631a5a6086bb47845a9d4354/41650241393.pdfIn PDF document text
- http://kirsanov-maslo.ru/uploads/xinelez.pdfIn PDF document text
- http://files.ibiza-ferien.de/file/namodobaxafuxuj.pdfIn PDF document text
- https://cristiandellavedova.com/wp-content/plugins/super-forms/uploads/php/files/hag4upb56snk64d679ngqvm9j5/91079083059.pdfIn PDF document text
- http://fusheng-vietnam.vn/admin/webroot/upload/image/files/vavumopowubowez.pdfIn PDF document text
- http://federicozucchettiarchitetto.eu/userfiles/files/29370787872.pdfIn PDF document text
- https://vashadvokat82.ru/wp-content/plugins/super-forms/uploads/php/files/062504f19d5ab7b8250b2c86fc0dcbbc/47632535803.pdfIn PDF document text
- http://com123.vn/uploads/file/93125596294.pdfIn PDF document text
- http://www.fonfe.com/uploads/files/37912612229.pdfIn PDF document text
- http://hosungtour.com/FileData/ckfinder/files/20210818_1B8FFB98CBC6EA5D.pdfIn PDF document text
- http://omni-links.com/images/blog//file/gefosabegibezikilanuxi.pdfIn PDF document text
- http://constantcontinuity.com/membership/data//files/dajobebirosox.pdfIn PDF document text
- http://singer-island-condos.com/userfiles/files/firejexokerok.pdfIn PDF document text
- http://7166867.ru/ckfinder/userfiles/files/9923794135.pdfIn PDF document text
- http://baiduvpn.com/upload/files/68343959865.pdfIn PDF document text
- https://www.taxikladis.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1608b9eaf7e7b6---gijutimojagazimanuremowe.pdfIn PDF document text
- http://bodymindspiritconnection.org/clients/5/53/53f1eac0d8ee32431a47b4e1af774f29/File/66965936862.pdfIn PDF document text
- http://tajeer.co/userfiles/file/47654856327.pdfIn PDF document text
- http://jagodkaprzedszkole.pl/userfiles/file/32127036267.pdfIn PDF document text
- https://seo-methodes.com/userfiles/file/nitem.pdfIn PDF document text
- http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/d3b416a8fe2129ddcf3d40ff82b3cf77/30919868925.pdfIn PDF document text
- https://www.truesdalepainting.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078aba412db4---6962023675.pdfIn PDF document text
- https://www.modianodesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2d32c5c6c9---65893191035.pdfIn PDF document text
- https://www.xcelsus.de/wp-content/plugins/formcraft/file-upload/server/content/files/160f0cc1b8ebcc---gawelimukik.pdfIn PDF document text
- https://traicaygiasi.com/Images_upload/files/pegugi.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://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_off0000e8a0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8A0 | 10784 bytes |
SHA-256: 74cef298fb227049484a79dfdb78ea6c1b338d21984ec1e7ddb4cc1e9b38feb6 |
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font_01_sfnt_off00010140.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10140 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011952.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11952 | 20676 bytes |
SHA-256: 5c9c53ecc99cbeda1b49922e4712ee373cb51dd06bafe6b79a90a88eaa768968 |
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