MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs pointing to various domains, many of which are associated with compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' specifically highlights this behavior.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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=the+dictionary+of+hindustani+classical+music PDF link annotation
- http://computergramm.com/userfiles/file/82745694395.pdfIn PDF document text
- https://xlspandoek.nl/userfiles/file/dupojomedorumixa.pdfIn PDF document text
- https://qwert5.com/psum/admin/userfiles/file/15697071188.pdfIn PDF document text
- http://utcsp2.rustyramone.com/uploads/files/98982144506.pdfIn PDF document text
- http://www.airportlimofortlauderdale.net/wp-content/plugins/formcraft/file-upload/server/content/files/161451aa644023---15267708683.pdfIn PDF document text
- https://deewo.de/wp-content/plugins/formcraft/file-upload/server/content/files/16139cdebd26e7---30763835798.pdfIn PDF document text
- http://wadsoda.com/UserFiles/File/69047447989.pdfIn PDF document text
- http://fatename.com/uploads/files/202109210007072379.pdfIn PDF document text
- https://autotronics.vn/userfiles/file/zuvapu.pdfIn PDF document text
- https://gk-termopanel.ru/wp-content/plugins/super-forms/uploads/php/files/90264218dd23934a87cf5797212f12a6/zelodav.pdfIn PDF document text
- https://chungangroup.com/uploads/files/202109242157451080.pdfIn PDF document text
- http://italiangreyhound.pl/img1/userfiles/file/52401779907.pdfIn PDF document text
- http://www.de.ruben.pl/ckfinder/userfiles/files/jonifak.pdfIn PDF document text
- https://media-get.ru/userfiles/files/48609985296.pdfIn PDF document text
- http://cansuyu.org/resimler/files/16563493306.pdfIn PDF document text
- http://duythuc-bearing.vn/uploads/userfiles/file/tegazilazibujarinitoxidu.pdfIn PDF document text
- http://www.optionassurance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1614bd1cb332c6---kisaxuf.pdfIn PDF document text
- http://nacyc.jp/Upload/file/vejolabuwivegabemus.pdfIn PDF document text
- http://tottazo.com/userfiles/file/sobabaxu.pdfIn PDF document text
- https://www.sahabatkeluargahomecare.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614f285084ead---sisopagevif.pdfIn PDF document text
- http://ifap.it/images/file/tatuluji.pdfIn PDF document text
- http://serting.eu/userfiles/files/banijusikujajow.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_off0000b131.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB131 | 15600 bytes |
SHA-256: ac2e598decc994ea9aff1593e6eb08e7d1d91b36cd3ad0659d6c9219b1cfee8d |
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font_01_sfnt_off0000d93c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD93C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f153.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF153 | 10916 bytes |
SHA-256: 2b5f0e31fd12c6e83d110f7a6e55983f4c02fc1638f2a20ecf1dee13735a57d4 |
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