MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF document contains numerous embedded URLs that point to compromised WordPress sites and other disposable hosting. These links likely serve as a link farm to redirect users to malicious content or further stages of an attack. The ML classifier strongly indicated maliciousness, and the structure suggests a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
Heuristics 5
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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://oniceh.ru/uplcv?utm_term=using+questionnaires+in+research+pdf PDF link annotation
- https://www.cir.cloud/wp-content/plugins/formcraft/file-upload/server/content/files/1607aca7370405---tatopirimiginod.pdfIn PDF document text
- https://dispomydeal.com/wp-content/plugins/super-forms/uploads/php/files/7d16f5b06ffb761b7bf86c443a2b6dcd/86524454258.pdfIn PDF document text
- https://medok18.ru/wp-content/plugins/super-forms/uploads/php/files/967419c765a0c4d7591930f6a52fa372/15309955786.pdfIn PDF document text
- https://elpmarketing.ca/wp-content/plugins/super-forms/uploads/php/files/3847defbc9591d66c3bae84f460bd7ae/19943666977.pdfIn PDF document text
- http://www.rec39.ru/wp-content/plugins/super-forms/uploads/php/files/eb4839a65f404433c637f06fc85c9903/negoxulezelikuzumoresoj.pdfIn PDF document text
- https://oneremote.ru/wp-content/plugins/super-forms/uploads/php/files/fc06bfbeea57a39ebc85696d32591e0c/laxodaw.pdfIn PDF document text
- http://cherriestattoo.com/ckfinder/userfiles/files/89967001823.pdfIn PDF document text
- http://studioprogettoarchitettura.eu/userfiles/files/52382451106.pdfIn PDF document text
- https://tramtron.vn/uploads/files/files/noliletezameri.pdfIn PDF document text
- https://codecs.ro/images/file/suzesopiwa.pdfIn PDF document text
- https://naseeha.org/wp-content/plugins/super-forms/uploads/php/files/d73703f5e77868789796aab59b675e96/lixizabuj.pdfIn PDF document text
- http://badgerhillfarm.uk/zuwebiseviforowudadabufix.pdfIn PDF document text
- https://www.uniqueartzz.com/wp-content/plugins/super-forms/uploads/php/files/2bill4d8gdehrfspqjl4305vok/19399904985.pdfIn PDF document text
- http://agendaalzheimer.org/files/galeria/files/19516719768.pdfIn PDF document text
- http://www.shipsupply.co.mz/wp-content/plugins/formcraft/file-upload/server/content/files/160ad162cb837f---57346297221.pdfIn PDF document text
- https://yomadesign.com/userfiles/Proj_Name//files/19801756640.pdfIn PDF document text
- https://www.onestopnaturalstore.ca/wp-content/plugins/super-forms/uploads/php/files/76d058ngitv68c3j5mleq4ajpk/mujipuwis.pdfIn PDF document text
- http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/16114a3976a389---58054545842.pdfIn PDF document text
- https://bettenbaehren.de/wp-content/plugins/formcraft/file-upload/server/content/files/16118b46e1d00e---gubavudekimalapazite.pdfIn PDF document text
- https://www.kbstephens.com/wp-content/plugins/super-forms/uploads/php/files/68cd680896f0bd01c0b40d02ddaf26fe/jaxixabizutaxomuru.pdfIn PDF document text
- https://ekselantechnology.solutions/ckfinder/userfiles/files/morewotubizajukaduwuravov.pdfIn PDF document text
- https://sport-jicin.cz/dokumenty/vefefari.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_off0000d1dd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1DD | 17060 bytes |
SHA-256: b0c380508cb89b2048640fe696b29cd3fa949182f43553012538db94e0d9f2ed |
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font_01_sfnt_off0000fdbb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDBB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000115d2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x115D2 | 11104 bytes |
SHA-256: 3084b6c89dae362adab063612a9afcbcc06fa36eae447b5bd8ce0d6fad7e3d28 |
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