MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, with numerous embedded URLs pointing to various domains, some of which are hosted on compromised CMS uploads. The presence of 'utm_term' parameters suggests an attempt at SEO manipulation to drive traffic. The primary function appears to be redirecting users to other sites, potentially for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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://afanasyev-design.ru/wp-content/plugins/super-forms/uploads/php/files/f8201b3604c56570892f78004e68a975/6925847349.pdf In PDF document text
- http://yummyschool.com/_UploadFile/Images/file/senebanalojulater.pdfIn PDF document text
- https://signos.larrialdiak.es/files/galeria/files/69754735989.pdfIn PDF document text
- https://baigiangtoanhoc.com/upload/files/3234829046.pdfIn PDF document text
- https://millersexpress.com/userfiles/file/bukunikuberewumuvitizamig.pdfIn PDF document text
- https://webmanagement.jbclub.ro/images/file/zokomuvijubitibalep.pdfIn PDF document text
- http://zamgph.com/uploads/file/141855246118.pdfIn PDF document text
- http://www.bewegeninarnhem.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16133d5b52b37b---vusaxajidutufeva.pdfIn PDF document text
- http://billedbutikken.dk/articlefiles/file/fadepuzunobudaro.pdfIn PDF document text
- http://loca-granderoue-montaletang.com/ckfinder/userfiles/files/77399895396.pdfIn PDF document text
- http://purofirstli.com/userfiles/files/74262125253.pdfIn PDF document text
- http://immobilieninvestors.com/userfiles/file/11488581343.pdfIn PDF document text
- http://3e-machinery.ru/app/webroot/filesfiles/dobadimibizixapanobipemo.pdfIn PDF document text
- http://ancient-theater.gr/media/file/40919033163.pdfIn PDF document text
- https://theelementrama9.com/userfiles/files/37054634647.pdfIn PDF document text
- http://lucchetta.net/userfiles/files/belusej.pdfIn PDF document text
- https://lederstuehle-shop.de/ckfinder/userfiles/files/xolomofuvabavale.pdfIn PDF document text
- http://szkolaprywatnaleszno.pl/userfiles/file/11496178678.pdfIn PDF document text
- https://walnutcreekguide.com/wysiwygfiles/file/wideluwazujawepina.pdfIn PDF document text
- http://az4group.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1614b938a4ee37---61578943578.pdfIn PDF document text
- http://www.uc-kushiro.net/images/library/File/88796944437.pdfIn PDF document text
- http://mabifitness.it/userfiles/files/kipiwafugadosiso.pdfIn PDF document text
- https://bilbox.es/wp-content/plugins/super-forms/uploads/php/files/6dd3ba44e8e0055b9b5208f752a2465b/28842576514.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=ruby+the+hard+way+pdfPDF 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_off0000b23d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB23D | 14588 bytes |
SHA-256: 05dc6dfb8b8dda24d6ac77cee3c6cbdfc0c64d76196d2051773970bd7fcadd80 |
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font_01_sfnt_off0000d694.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD694 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000eeab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEEAB | 10548 bytes |
SHA-256: ad827082cb70f111b4ad7e134d5e3eca3411224864de392cb3c20e963474dc46 |
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