MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous embedded URLs pointing to compromised WordPress sites and other domains, likely serving as a distribution point for phishing or malware. The presence of multiple external URIs and link farm heuristics strongly suggests an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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://www.napariverinn.com/wp-content/plugins/super-forms/uploads/php/files/74317e77d9d4241378d583d282358bfb/kabodatuka.pdf In PDF document text
- https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/160832ca729e36---retojapoxezavekodov.pdfIn PDF document text
- https://abeess.com/userfiles/file/gigizixajigisuw.pdfIn PDF document text
- http://unternehmensberatung-hegenbarth.de/userfiles/file/jatabuwawu.pdfIn PDF document text
- http://dodici12.ru/wp-content/plugins/super-forms/uploads/php/files/naukfho631lfuauj3g79lcv0p4/jubili.pdfIn PDF document text
- http://to-tuong.com/media/ckfinder/files/51796756560.pdfIn PDF document text
- http://galluccifaibano.it/userfiles/file/63496542375.pdfIn PDF document text
- https://notofthisgalaxy.com/wp-content/plugins/super-forms/uploads/php/files/gah82kq3hg2u8rpk6kd48stvuh/gagaseduzibaban.pdfIn PDF document text
- https://www.landalastadservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a34ed1329e6---buminonawawuzitewiwax.pdfIn PDF document text
- https://torrentclub.vip/wp-content/plugins/super-forms/uploads/php/files/kjb8j3kfjcivak5jp0lf8o9fgm/zeponali.pdfIn PDF document text
- http://vitanova-cattery.com/upload/file/48216032882.pdfIn PDF document text
- https://shrmivirtual.org/wp-content/plugins/super-forms/uploads/php/files/5e719d17cdc9ef46efd2a34e75cf5f2c/sunuger.pdfIn PDF document text
- http://bienchidan.org/uploads/files/mesevenusifikumesag.pdfIn PDF document text
- https://agilitynd.com/wp-content/plugins/super-forms/uploads/php/files/e5df7441c763ca66ed6d0bfc0c7d1d69/95251762524.pdfIn PDF document text
- http://katachizu.com/img/news/files/pikonowebab.pdfIn PDF document text
- http://samnakthodrahassob.com/userfiles/file/lopuwunokamivevaju.pdfIn PDF document text
- https://hafa-verein.de/wp-content/plugins/super-forms/uploads/php/files/d289995e75ad24654eb23164ff478012/28058174440.pdfIn PDF document text
- http://baikalspring.ru/ckfinder/userfiles/files/93144047890.pdfIn PDF document text
- http://geoplan.su/userfiles/file/jomiligox.pdfIn PDF document text
- https://supportsystemsvainc.com/home/ssvi/public_html/ckfinder/userfiles/files/gadaledaripad.pdfIn PDF document text
- http://cf2sc.cn/userfiles/file/lowumatupamevuvuwo.pdfIn PDF document text
- http://www.canadavisaservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160701eb9a00a3---jujonegag.pdfIn PDF document text
- http://meteosputnik.ru/userfiles/file/jejobafufepoladudeza.pdfIn PDF document text
- http://sequirk.ie/userfiles/file/50728035032.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=answers+to+the+crucible+act+2+questionsPDF 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_off0000c8e0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC8E0 | 10900 bytes |
SHA-256: 7847734643d7a3110605a8e969523ee60b1f3bd6de776a9f14d465407314871e |
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font_01_sfnt_off0000e22e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE22E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000fa40.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA40 | 16992 bytes |
SHA-256: 714aef61e2401f4b32cb1124a4393df3cb1c2ff3deb1e51f11e6223a3817399c |
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