MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm pointing to compromised WordPress upload storage, suggesting a redirection mechanism. The embedded URLs, while some are marked benign, are part of a larger pattern of hosting malicious content on potentially compromised sites. No scripts were extracted, but the structure and URL patterns are consistent with phishing or malware distribution campaigns.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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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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.keystonecare.co.uk/wp-content/plugins/super-forms/uploads/php/files/685c4db696261ecf07f9dad9ff221f72/pusisijamajabije.pdf In PDF document text
- https://www.pfgpartners.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1613f28f53f608---mefojemebubipiwo.pdfIn PDF document text
- http://www.accessibilite-salle-eau.com/ckfinder/userfiles/files/pizipumop.pdfIn PDF document text
- https://lederstuhlshop.de/ckfinder/userfiles/files/55749266244.pdfIn PDF document text
- http://togclick.com/media/userFckfiles/file/82101530106.pdfIn PDF document text
- http://vce34.ru/attachments/file/84960820930.pdfIn PDF document text
- https://lighthousemacau.com/html_upload/file/piwurowabukutaluv.pdfIn PDF document text
- http://tdsns.ru/userfiles/file/kixokonoguludubo.pdfIn PDF document text
- http://www.ags-sib.ru/ckfinder/userfiles/files/jovavasujabimevimuzepo.pdfIn PDF document text
- https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16139efc9426a1---52493972482.pdfIn PDF document text
- https://myhoorayhealth.com/wp-content/plugins/super-forms/uploads/php/files/265b9ba07c946df4b40f68c167537488/kuzoturozaxenelu.pdfIn PDF document text
- https://www.premiumtrade.ro/ckfinder/userfiles/files/filodisuxupikepe.pdfIn PDF document text
- https://www.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16131f41d8cb11---xulakugan.pdfIn PDF document text
- http://impex-italia.it/userfiles/files/34321937765.pdfIn PDF document text
- http://adaviestransportltd.com/userfiles/file/83103219600.pdfIn PDF document text
- http://srs-budapest.hu/uploads/files/24529522822.pdfIn PDF document text
- http://sodrex.pl/userfiles/file/50390073607.pdfIn PDF document text
- https://soudurelauziere.ca/upload/editor/file/48723901660.pdfIn PDF document text
- http://teusz.pl/UserFiles/file/widiwinoxinulajekebenus.pdfIn PDF document text
- http://eminenceinc.com/userfiles/file/tifivogudusasowanovakak.pdfIn PDF document text
- http://nhakhoanhantin.com/media/ftp/file/71300547876.pdfIn PDF document text
- https://kasihpaham.com/contents/files/56748259446.pdfIn PDF document text
- https://excellencetogether.com/img/files/file/91974503830.pdfIn PDF document text
- http://surtek.biz/image/files/20150408_024958.pdfIn PDF document text
- https://magiccat.pro/ckfinder/userfiles/files/jajuzorivumumoruwebero.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=what+is+system+ui+appPDF 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_off0000b13b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB13B | 10352 bytes |
SHA-256: 914cf16ee98e71c3855bc71e18c360e24231d68324a84b639dfc059b84ce1863 |
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font_01_sfnt_off0000c8af.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC8AF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000e0c1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE0C1 | 15792 bytes |
SHA-256: 60bd90b2fbe8c8a825db62cc1cbed362f8925f4e0fef1cbb368c11113d95ed1a |
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