MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is identified as malicious by ClamAV and an ML classifier, and exhibits characteristics of a link farm. It contains numerous external URIs pointing to various domains, suggesting an attempt to redirect users to potentially malicious content. The presence of compromised CMS upload links further indicates a pattern of hosting malicious files on seemingly legitimate but compromised websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9905
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://chcial.ru/uplcv?utm_term=introduction+to+african+traditional+religion+by+john+mbiti+pdf PDF link annotation
- https://bauarch.bg/files/zadatigebig.pdfIn PDF document text
- http://gimhaejazz.com/fckeditor/userfiles/image/kupoxixofivukezurabegesun.pdfIn PDF document text
- http://jongauger.com/ckfinder/userfiles/files/tegolig.pdfIn PDF document text
- http://www.teaterskolen-efteruddannelsen.dk/ckfinder/userfiles/files/12914502270.pdfIn PDF document text
- https://howardsteeves.com/wp-content/plugins/super-forms/uploads/php/files/f8c507ec6c72ec74fbdb44bf473503f0/52012446399.pdfIn PDF document text
- https://aromamarketing.md/img/files/60331256746.pdfIn PDF document text
- https://kemxoi.vn/app/webroot/files/images/pages/files/sopevuvatabegulogogojada.pdfIn PDF document text
- https://homeuu.biz/upload/ckeditor/pages/files/banozaperologas.pdfIn PDF document text
- https://giorgiosantinelli.it/file/83149909545.pdfIn PDF document text
- https://inunekocp.jp/mailmagazine/upload/files/zabajexurusomumupefi.pdfIn PDF document text
- https://tainandentist.com/uploads/files/202109201255366655.pdfIn PDF document text
- http://altronic.pl/!mag2011/userfiles/file/88410346334.pdfIn PDF document text
- http://hotdeals24x7.com/ci/userfiles/files/83657295806.pdfIn PDF document text
- http://ganan10.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1614c876c72764---12220593015.pdfIn PDF document text
- https://designsdubaiukfashion.com/userfiles/file/81343513926.pdfIn PDF document text
- https://anitt.in/ckfinder/userfiles/files/bejuxotewosefefawu.pdfIn PDF document text
- https://muratay.nl/userfiles/file/50048018634.pdfIn PDF document text
- https://krassimirtaskov.com/userfiles/files/60838189848.pdfIn PDF document text
- https://iuoshili.com/upload/users/files/xanofu.pdfIn PDF document text
- https://completecollegestrategies.com/wp-content/plugins/super-forms/uploads/php/files/9f366c85aef927b4a81a98d37902a576/juzumeminuka.pdfIn PDF document text
- http://sparan-art.ru/ckfinder/userfiles/files/19550457994.pdfIn PDF document text
- http://stefanourso.com/public/userfiles/file/84928489576.pdfIn PDF document text
- https://eastmanllc.net/ckfinder/userfiles/files/57380036487.pdfIn PDF document text
- https://www.hit-education.com/wp-content/plugins/super-forms/uploads/php/files/hlpjp2o7uufuvrgl6tkj8c229h/80133406771.pdfIn PDF document text
- https://sistemagestiondpr.co/userfiles/file/vaguvikulekexusapax.pdfIn PDF document text
- http://kimkhimientrung.com/uploads/image/files/47510389472.pdfIn PDF document text
- http://agataklimowska.pl/userfiles/file/36857012200.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_off0000ef5d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF5D | 11336 bytes |
SHA-256: 099359a7ecb4772712223cf67f0495ec2369073255819b52e0105357c77b28b1 |
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font_01_sfnt_off00010962.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10962 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012174.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12174 | 17636 bytes |
SHA-256: f26dad6d5f76a0309941880b4fa59bfa73a4749546c40b0074571d43d3f7e25f |
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