MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded URLs, many of which point to compromised CMS upload storage or disposable hosting, indicating a link farm designed to redirect users. The ML classifier strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the nature of the embedded links suggests a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9916
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://medvor.ru/uplcv?utm_term=first+signs+of+female+dog+in+heat PDF link annotation
- http://nuraski.pl/wsg/userfiles/bapesu.pdfIn PDF document text
- http://leaguengn.com/userfiles/file///14691040578.pdfIn PDF document text
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/16151db1d2faa7---63501050919.pdfIn PDF document text
- https://guadix.co/ckfinder/userfiles/files/71615556263.pdfIn PDF document text
- http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613724f78dd73---mukepemepisamubiwaxupa.pdfIn PDF document text
- https://chocoinmobiliario.com/wp-content/plugins/super-forms/uploads/php/files/965ccc52f5cac90dbcd421ae3ced2e6f/nopulojokidusukumofo.pdfIn PDF document text
- https://medarbindia.org/ckfinder/userfiles/files/42224599263.pdfIn PDF document text
- https://youxsoft.com/uploads/files/tawire.pdfIn PDF document text
- http://www.vnv.nu/admin/library/ckfinder/userfiles/files/pumudifijebedes.pdfIn PDF document text
- https://ptogel2.com/contents/files/49308050558.pdfIn PDF document text
- http://clinicaveterinariagoitese.it/userfiles/files/bujidikoraxamo.pdfIn PDF document text
- http://shendaoguoji.com/data/attachment/file/wekatu.pdfIn PDF document text
- http://thehbbq.com/uploads/files/kazenubopu.pdfIn PDF document text
- https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/26532cbb8dc598292194c943bae86f8a/kawutopitovep.pdfIn PDF document text
- https://ichapps.peaceofworld.com/ichapps/ckeditor-ckfinder-integration/uploads/files/80046335668.pdfIn PDF document text
- https://avukatwebsitesi.trakyasoft.com/upload/files/99632299454.pdfIn PDF document text
- https://tcufroghouses.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131a46cdf5b0---28436119001.pdfIn PDF document text
- http://costruzionibulagna.it/userfiles/files/vebiker.pdfIn PDF document text
- https://www.bevillelecomte.com/ckfinder/userfiles/files/fafugeviwuto.pdfIn PDF document text
- http://pyhunlian.com/uploadfile/file/55821037707.pdfIn PDF document text
- https://www.beewellrx.com/wp-content/plugins/super-forms/uploads/php/files/72so0qr7hngaed2bciqu4299tp2msum3/35371734986.pdfIn PDF document text
- http://zenkatsu.dk/files/madidix.pdfIn PDF document text
- https://www.iieng.org/editor/ckfinder/userfiles/files/62085629846.pdfIn PDF document text
- http://gpsputhuppally.com/userfiles/file/mafevobigitem.pdfIn PDF document text
- https://kvartira-zalog.ru/wp-content/plugins/super-forms/uploads/php/files/96caa9d92cbf6a138aa7a01fbe220f5a/vegitinoseburetoxome.pdfIn PDF document text
- https://aymexco.ro/ckfinder/userfiles/files/bewuvigujojuseluxo.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_off0000b4e6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB4E6 | 15072 bytes |
SHA-256: a99338f8644a4530cd125ab640705264be0f985bb1b97e446d4eaf1bebac15ab |
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font_01_sfnt_off0000db05.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB05 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f31c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF31C | 10776 bytes |
SHA-256: 885375b5e34f008c9a64790c0e3418dc601dc93ffdf8283a7d68c612d1ebf601 |
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