MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous external links, many pointing to compromised websites or disposable domains, indicating a link farm or redirection strategy. The ML classifier strongly flagged this PDF as malicious. The presence of multiple PDF_URI and PDF_SEO_DISPOSABLE_LINK_FARM heuristics supports the conclusion that this document is designed to lead users to potentially harmful external resources.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
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://chcial.ru/uplcv?utm_term=my+love+is+like+a+river PDF link annotation
- http://vet-arrighicolangelicristilli.eu/userfiles/files/34890424473.pdfIn PDF document text
- https://hongmao.tw/uploads/files/202109221813452678.pdfIn PDF document text
- http://xn--9i1b14lzokxjcrti5um.com/upload/fckeditor/file/87464432890.pdfIn PDF document text
- http://casier-a-bouteilles.com/file/79635202462.pdfIn PDF document text
- http://harlit.com/upfiles/file/wamolasuwurijopo.pdfIn PDF document text
- http://www.farmaciapenil.es/userfiles/files/zotidusujukaxarolarumiduz.pdfIn PDF document text
- http://murielbellhomes.com/userfiles/files/mivuxezivirisid.pdfIn PDF document text
- https://oriolefashion.com/ckfinder/userfiles/files/wotarazolu.pdfIn PDF document text
- https://aradovan.com/userfiles/file/87733293633.pdfIn PDF document text
- http://teplorium.su/userfiles/file/18101161710.pdfIn PDF document text
- http://synthecinter.com/userfiles/files/13808157849.pdfIn PDF document text
- https://polenhosting.com/calisma2/files/uploads/juzudadomapuluvuto.pdfIn PDF document text
- http://stringquartet.biz/web/images/fck/file/89661439860.pdfIn PDF document text
- http://antonellascarpittadesigner.it/userfiles/files/fulufotewifirezevikal.pdfIn PDF document text
- https://www.frontierexim.com/wp-content/plugins/super-forms/uploads/php/files/0ujfv41prg1vitoh9u4q9j5m3r/genadovuvesibade.pdfIn PDF document text
- http://gewoongroen.eu/app/webroot/files/userfiles/files/47436460306.pdfIn PDF document text
- http://ride.hu/images/uploads/files/vediduzuvexeja.pdfIn PDF document text
- http://fourfoods.com/images/files/67584369789.pdfIn PDF document text
- http://mineraux-et-lithotherapie.fr/ckeditor/upload/files/xurebenusedobelikix.pdfIn PDF document text
- http://eptesteplelek.com/uploads/file/savozegozamudifaju.pdfIn PDF document text
- http://bilagroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141e51e960a7---zejevirawipufemuzukedetag.pdfIn PDF document text
- https://dermo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614163bf932a6---89509366525.pdfIn PDF document text
- http://teenmag.cz/userfiles/file/39069169134.pdfIn PDF document text
- http://adance0112.com/upfile/editor/file/pobenokavizosuw.pdfIn PDF document text
- http://uts.edu.co/portal/app/ckfinder/userfiles/files/99074575677.pdfIn PDF document text
- http://baiduvpn.com/upload/files/41772763361.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_off0000d9fd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD9FD | 10164 bytes |
SHA-256: f26cb67bf84e5e9833f48290b6e78686884e5dc7a4eb938d30431c2df2289b86 |
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font_01_sfnt_off0000f0e6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0E6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000108f8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108F8 | 19088 bytes |
SHA-256: 729ec8328038efa23a17d0f77e05ee44992caae495653d2fd33260aa760cbb4f |
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