MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1059.007 JavaScript
T1566.001 Spearphishing Attachment
The sample was identified as malicious by ClamAV and an ML classifier, with heuristics indicating embedded JavaScript and a link farm pointing to potentially compromised WordPress upload storage. The embedded JavaScript likely facilitates the redirection to external URLs, which are part of a link farm designed to obscure the final destination, suggesting a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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 http://www.sport-konyv.hu/userfiles/file/91620367179.pdf In PDF document text
- https://bacninhonline.com/webroot/img/files/susodometo.pdfIn PDF document text
- https://www.hed-endo.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160a39a60b647e---30487824082.pdfIn PDF document text
- https://g-ortho.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160faab0cf27df---jadedi.pdfIn PDF document text
- https://qfse.co/images/uploaded_files/ckfinder/files/1627988373_413f37bf7a.pdfIn PDF document text
- https://addsfly.com/userfiles/file/18842338670.pdfIn PDF document text
- https://binarbaidservices.com/public_html/userfiles/file/wadamanojawe.pdfIn PDF document text
- http://yaqeen-eg.com/userfiles/file/rixemeguguxif.pdfIn PDF document text
- http://stlnsk.ru/uploads/file/40115366146.pdfIn PDF document text
- http://caribsplash.org/wp-content/plugins/formcraft/file-upload/server/content/files/160bac9aad09cb---9592748887.pdfIn PDF document text
- https://chung-pei.com/userfiles/file/1398107040.pdfIn PDF document text
- https://soyana.de/js/ckfinder/userfiles/files/4459033105.pdfIn PDF document text
- http://matchedtubes.de/userfiles/file/7154198598.pdfIn PDF document text
- https://www.kadinlarsitesi.org/wp-content/plugins/formcraft/file-upload/server/content/files/16074acc352bca---kudevobapezezapo.pdfIn PDF document text
- https://aventura-agence.lu/userfiles/files/lipogokasik.pdfIn PDF document text
- https://www.ayersworthglen.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7c88184278---birizexaredusesasanozemu.pdfIn PDF document text
- http://sns.hu/_user/file/rewemala.pdfIn PDF document text
- http://soupworld.de/upload/file/tokikivaraji.pdfIn PDF document text
- https://dolphinsolutions.net/ckfinder/userfiles/files/rinuxevopisamifate.pdfIn PDF document text
- http://www.workbythai.com/admin/assets/images/52043758205.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=calculate+your+bmiPDF link annotation
- 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_off0000cdba.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCDBA | 10504 bytes |
SHA-256: 2d3498b822794eccd3baf2e316a2f85f0f058f166054de1acee2df4b3b86f480 |
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font_01_sfnt_off0000e5b5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE5B5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000fdc7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDC7 | 16248 bytes |
SHA-256: 31c53b1720a241f6649d1a17a3c1b7aba9b944f25b88bd92e1b539b9e1847056 |
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