MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The file contains numerous external links, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The primary attack pattern involves luring users to these external sites, likely for phishing or to download further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://ketchas.ru/uplcv?utm_term=gastronomia+historia+ilustrada+de+mexico+pdf PDF link annotation
- https://studiovizia.com/webroot/img/content/files/fetunigumikalotajasudup.pdfIn PDF document text
- http://www.dj-csnl.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b6810a86970---48006808666.pdfIn PDF document text
- http://brandweeramsterdamamstellanden.nl/userfiles/file/83155695604.pdfIn PDF document text
- https://hylyt.co/wp-content/plugins/super-forms/uploads/php/files/13b3496960f32bb2b46bd4f12e512ba4/27840496112.pdfIn PDF document text
- http://westpakusa.com/phpsites/vertical_living/uploads/file/xalureb.pdfIn PDF document text
- http://zrdb-drogbud.pl/Upload/file/59561792608.pdfIn PDF document text
- https://hansenlight.com/UploadFile/files/76589227191.pdfIn PDF document text
- https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/b0d4f1211548dd127474b578c67c0c7d/64294010986.pdfIn PDF document text
- http://richmore.kr/uploadfile/fckeditor/file/61436177496.pdfIn PDF document text
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608402d6e03da---74467345163.pdfIn PDF document text
- http://emilybarnes.com/DEVELOPMENT/VERSIONED/emilybarnes/trunk/sites/default/files/file/tiwepu.pdfIn PDF document text
- https://funkydrop.shop/wp-content/plugins/super-forms/uploads/php/files/bcfe13ffabbf234738c8b200ad360e5f/12002234169.pdfIn PDF document text
- http://architects-desk.com/uploadsfile/26549676062.pdfIn PDF document text
- https://mobistore.co.nz/wp-content/plugins/super-forms/uploads/php/files/f06dc62d589624c573ec7ebe574f91d8/laxamikizanutezazajud.pdfIn PDF document text
- https://tasleemdubai.com/userfiles/files/66341842912.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091a73cf39f8---1235615335.pdfIn PDF document text
- https://naucharts.com/ckfinder/userfiles/files/funapujodu.pdfIn PDF document text
- http://gursakaryahukuk.com/images/file/binuzunem.pdfIn PDF document text
- http://ghalemdi.com/userfiles/file/siworusamag.pdfIn PDF document text
- http://stacjaregeneracja.pl/userfiles/file/44256673088.pdfIn PDF document text
- https://dodomacnosti.net/data/file/19638405990.pdfIn PDF document text
- http://zeguvietnam.com/uploads/ckfinder/files/24766392249.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_off0000cf4c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCF4C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e75e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE75E | 20028 bytes |
SHA-256: 9c79895fd67bb6cc3e4393c04ad73d4afc79e642608535bc4eaf696509523177 |
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font_02_sfnt_off00011a79.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A79 | 11128 bytes |
SHA-256: 72e5c3501558f48d7f8a7f7b512939a8b998230d274ade3a27f4ec266acfcf94 |
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