MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to compromised websites or disposable hosting, forming a link farm. The primary purpose appears to be directing users to external, potentially malicious, sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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://queure.ru/uplcv?utm_term=what+is+after+trillion+in+numbers PDF link annotation
- https://52fantasies.com/home/holly/public_html/ckfinder/userfiles/files/90203313898.pdfIn PDF document text
- http://saconsultancy.com/userfiles/file/47281674163.pdfIn PDF document text
- http://neodentpetrosino.it/userfiles/files/95691180096.pdfIn PDF document text
- http://webursitet.org/Files/file/28746492233.pdfIn PDF document text
- https://quangcaowebsite.xemlaco.com/uploads/files/segemutav.pdfIn PDF document text
- http://besttailor.info/ckfinder/userfiles/files/52353320042.pdfIn PDF document text
- https://westcoastmovers.ca/wp-content/plugins/super-forms/uploads/php/files/bda93bb657gqn8si204s2d34t8/pelew.pdfIn PDF document text
- http://yatros.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16133606410826---30784285822.pdfIn PDF document text
- https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/161440b7b48b09---13174963127.pdfIn PDF document text
- http://mirsistem.com/depo/sayfaresim/file/97188007822.pdfIn PDF document text
- https://hylyt.co/wp-content/plugins/super-forms/uploads/php/files/b533b12426b960e109c1ebbf0530a690/59794544926.pdfIn PDF document text
- https://perfecthospitals.org/ckfinder/userfiles/files/jokut.pdfIn PDF document text
- http://betheaskssd.com/flash/betheaskssd.com/file/pedonirilowivajaleri.pdfIn PDF document text
- http://bbbo.handyfriendship.com/upload/files/dowupa.pdfIn PDF document text
- https://solturism.ro/images/file/59591944299.pdfIn PDF document text
- http://konemara.hu/userfiles/file/3107743081.pdfIn PDF document text
- http://futureinfashion.com/ckfinder/userfiles/files/jetabinabogur.pdfIn PDF document text
- http://sotel-perm.ru/site/file/84458477920.pdfIn PDF document text
- http://orthopediedelft.eu/files/daporabijubusasegotaro.pdfIn PDF document text
- http://cafesezony.ru/fck_editor_files/files/dukaluwa.pdfIn PDF document text
- http://aihyang.com/userfiles/file/47504762370.pdfIn PDF document text
- http://prunay-en-yvelines.fr/ckfinder/userfiles/files/xufija.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_off0000af8a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAF8A | 10712 bytes |
SHA-256: 5b21f59cef0acf9dc68c9ad38a46b4732e561158b61fe66e9acecb3419913def |
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font_01_sfnt_off0000c7f7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC7F7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000e009.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE009 | 15560 bytes |
SHA-256: 23ec1ed5181133573c1bf68bca6410f1eb99afe005e106918fdf682679394b95 |
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