MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file is identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, containing numerous URLs pointing to various domains, many of which appear to be compromised or disposable hosting. The 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic specifically highlights this behavior, suggesting the document's purpose is to manipulate search engine results or host malicious links. The presence of external URIs and the overall structure strongly suggest a phishing or SEO spam attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
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://catamma.ru/uplcv?utm_term=best+android+games+with+high+graphics PDF link annotation
- http://ingenermarket.ru/userfiles/nozamajiw.pdfIn PDF document text
- https://robodom.si/files_vsebine/vusozeripikutiz.pdfIn PDF document text
- https://divanich96.ru/admin/ckfinder/userfiles/files/9456631316.pdfIn PDF document text
- https://unique.global/wp-content/plugins/super-forms/uploads/php/files/8f8e43e21a298c393554a04c51032b9f/83400577529.pdfIn PDF document text
- http://phuquytravel.com/nguyenvanlinh/files/16978901244.pdfIn PDF document text
- http://xatrbio.com/userfiles/file/34950197025.pdfIn PDF document text
- http://cocoal.com/uploads/file/57206426920.pdfIn PDF document text
- https://doellefjelde-mussemarked.dk/images/newsmail/file/vowiluxepegitomuvisezo.pdfIn PDF document text
- https://gogreenonline.net/userfiles/image/fckeditor/file/83854792775.pdfIn PDF document text
- http://driscollandgibson.com/images/edit_images/file/nuseboma.pdfIn PDF document text
- http://liderzy.natura2000.pl/imgturysta/files/bavaxopajav.pdfIn PDF document text
- https://soportedevida.mx/ckfinder/userfiles/files/53735931283.pdfIn PDF document text
- https://mavachhaiphong.com/upload/files/22012827359.pdfIn PDF document text
- http://tsg-edinstvo.ru/userfiles/file/dubotoligasewodozikavaga.pdfIn PDF document text
- http://grani-tonkogo-mira.ru/wp-content/plugins/super-forms/uploads/php/files/c08844393a7ce0824371cd5119d3e494/83033365612.pdfIn PDF document text
- http://ssatripoli.org/userfiles/file/68275073651.pdfIn PDF document text
- http://boldogelet.hu/media/nujogowab.pdfIn PDF document text
- http://www.primalegal.eu/wp-content/plugins/super-forms/uploads/php/files/qv0h8k4nbu9rnp2499kd91frb4/jedigujogu.pdfIn PDF document text
- http://www.mtpartnersfl.com/wp-content/plugins/formcraft/file-upload/server/content/files/161352f54a4778---pagujo.pdfIn PDF document text
- https://heart-calligraphy.com/uploads/files/202109150602003882.pdfIn PDF document text
- http://colokit.thienlonggroup.com/Images_upload/files/dadote.pdfIn PDF document text
- http://www.asiacoservice.com/file/files/vigimudi.pdfIn PDF document text
- http://nacyc.jp/Upload/file/43244503226.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_off0000eb72.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB72 | 11056 bytes |
SHA-256: 11db0c9521eabe25261e6a250c7a96082eb5000d6145a2b11065515710bf9139 |
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font_01_sfnt_off000104e3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104E3 | 16720 bytes |
SHA-256: 75e7ee2e233069604e33a5cc3bf6de2e17f44775156f4d3686a6a7be8edb6417 |
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font_02_sfnt_off00013016.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13016 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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