MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links pointing to compromised WordPress sites, which in turn host other PDF files. This behavior is indicative of a link farm, likely used for SEO manipulation or to distribute further malicious content. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/144786e378c3b1273bbb255b36f4ef22/67163221621.pdf In PDF document text
- http://coming-c.com/userfiles/file/motixabomediw.pdfIn PDF document text
- https://www.certificagreen.com/wp-content/plugins/formcraft/file-upload/server/content/files/160996a8cc9047---gujupelitafatolap.pdfIn PDF document text
- https://drivingschoolofnorthtexas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160705b4dea967---kepub.pdfIn PDF document text
- http://vogiantinhmach.com/media/ftp/file/mujugixujox.pdfIn PDF document text
- https://www.northamericatalk.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d637392b0ed---30398407624.pdfIn PDF document text
- http://work4shop.cz/userfiles/file/bopujirut.pdfIn PDF document text
- http://friluftsgruppen.se/wp-content/plugins/formcraft/file-upload/server/content/files/1608f2b401bd5c---gomagakinabazebi.pdfIn PDF document text
- http://rauvuonsach.com/images/uploads/files/74000334936.pdfIn PDF document text
- https://drahmetbostanci.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c912d9cbfed---vesux.pdfIn PDF document text
- http://crocepadrekolbe.it/userfiles/files/rujodogipopetuzu.pdfIn PDF document text
- https://thewentworthco.com/wp-content/plugins/super-forms/uploads/php/files/lbtrp2kfqbl6hrfpee2s74tec8/lopalaburowenopit.pdfIn PDF document text
- http://ecbpolska.pl/wp-content/plugins/super-forms/uploads/php/files/cdbe7334786471cd38a7ef3566be8541/zowelimexisigi.pdfIn PDF document text
- http://bellsazshihtzu.com/clients/878694/File/nejojodolozanosanezepabeb.pdfIn PDF document text
- http://ned.ru/uploads/files/5120827341.pdfIn PDF document text
- https://traveltokiev.com/wp-content/plugins/super-forms/uploads/php/files/nlc562p5s5c5ceau5fj3jihqn2/65212764314.pdfIn PDF document text
- http://mognational.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086aa21164dc---41562096463.pdfIn PDF document text
- https://www.carlosfunes.es/wp-content/plugins/formcraft/file-upload/server/content/files/160eca847a6df4---51447137344.pdfIn PDF document text
- http://bortran.com/upload/image/file/20210618044923.pdfIn PDF document text
- http://knuhpharm.kr/userfiles/file/20210624193314.pdfIn PDF document text
- http://in-dapt.com/wp-content/plugins/formcraft/file-upload/server/content/files/160adf337e3ba7---47340308878.pdfIn PDF document text
- http://regimhotelierbucuresti.com/images/userfiles/zuvozunavulawufumaf.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=demons+cast+out+in+the+biblePDF 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_off0000ebc1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBC1 | 17044 bytes |
SHA-256: 56c0218359beff4d0de7d7f7c6939002a33678b736ca9c94f914c6d9f01a8b8d |
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font_01_sfnt_off0001182b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1182B | 10636 bytes |
SHA-256: e004dfc4e2454abe49588dc5d96982a92f66c978a62f085d2ebe7b6acbc8a5f4 |
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font_02_sfnt_off00013052.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13052 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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