MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many pointing to compromised WordPress sites, suggesting a link farm designed to redirect users to malicious content. The presence of these links and the overall structure indicate an attempt to distribute malware or conduct phishing operations.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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://catamma.ru/uplcv?utm_term=nlp+in+business+pdf PDF link annotation
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077f38422413---getozojuxorevuzumiweseji.pdfIn PDF document text
- https://pensiunea-escape.ro/ckfinder/userfiles/files/72235387060.pdfIn PDF document text
- http://ontheedgeofnow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d9816e1e6f2---88067348064.pdfIn PDF document text
- http://www.adanakursmerkezi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c2c78ae8fc---64094407073.pdfIn PDF document text
- http://tumwebthailand.com/ckfinder/userfiles/files/18711278341.pdfIn PDF document text
- http://momsystem.ru/public/file/3380455616.pdfIn PDF document text
- http://soles2walk.cz/data/file/85229941186.pdfIn PDF document text
- https://etest.vn/app/webroot/uploads/files/nofut.pdfIn PDF document text
- https://ntct.dz/ckfinder/userfiles/files/68258465043.pdfIn PDF document text
- http://easyreturn.store/userfiles/file/kelugevosafero.pdfIn PDF document text
- http://ipceurope.eu/assets/file/46531121479.pdfIn PDF document text
- http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ee272c574c2---60253862471.pdfIn PDF document text
- https://calendarsunrooms.com/userfiles/files/merokar.pdfIn PDF document text
- https://kalatranslation.co.uk/wp-content/plugins/super-forms/uploads/php/files/1rvnnqg2k7fhm1hpj23k0ja6rg/munekixulamijapavawonufig.pdfIn PDF document text
- http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/1612c789f5ab70---porakul.pdfIn PDF document text
- https://hafa-verein.de/wp-content/plugins/super-forms/uploads/php/files/12ef30fb073579cc73557cb02a11a224/wulonugobonududotobexiv.pdfIn PDF document text
- http://speakingaboutnetworking.com/ckfinder/userfiles/files/rejefokidaw.pdfIn PDF document text
- http://iwilldoit.ru/uploads/files/files/94904574278.pdfIn PDF document text
- https://marblobaths.ph/app/webroot/img/files/15253233526.pdfIn PDF document text
- http://herve-coiffure.ci/files/84714766003.pdfIn PDF document text
- http://herculesestateplanning.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/lepakerodekinud.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_off0000fffb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFFB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0001180d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1180D | 18252 bytes |
SHA-256: d5713535b6505bf637ef809b17e442e462a39149f5c147f0b6dac1493665aaee |
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font_02_sfnt_off00014782.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14782 | 10228 bytes |
SHA-256: dd78c3dc9a5074316f6cdb86158b9410dbbc30c73b9bc1c9e55e6872c6ac465d |
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