MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised CMS uploads or disposable hosting, indicating a link farm. The ML classifier strongly flagged this PDF as malicious. The primary attack pattern observed is the use of a link farm, likely to manipulate search engine results or redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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://archism.ru/uplcv?utm_term=free+california+dmv+permit+practice+test+in+spanish PDF link annotation
- http://schodylux.pl/userfiles/file/puzemuriguz.pdfIn PDF document text
- https://samavetpharm.com/userfiles/files/zofesojazefedudije.pdfIn PDF document text
- https://prana.video/wp-content/plugins/super-forms/uploads/php/files/oqhjca7arji376ita80bclfmj8/53786064970.pdfIn PDF document text
- http://abapaposentados.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160e285a0ca05f---ratukazegupudajagudoguf.pdfIn PDF document text
- http://kyanite.tv/userfiles/file/kogagilokago.pdfIn PDF document text
- https://atcotourismtravel.com/userfiles/file/tazesafumagiloripubewu.pdfIn PDF document text
- http://alarcon-v.com/editor_upload_image/file/luvubasinidipadevudujavaz.pdfIn PDF document text
- https://martybermanassociates.com/wp-content/plugins/super-forms/uploads/php/files/af08c1ac69a365d30846d44ec50566a3/rejanuwaxi.pdfIn PDF document text
- http://www.highlandmetals.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16077416e0d61f---zurokumokolezegipokume.pdfIn PDF document text
- https://yournew.site/wp-content/plugins/super-forms/uploads/php/files/1v628ib08gqhg3jc7ft2kin6ef/mogafejobaloragewagugup.pdfIn PDF document text
- https://him-home.ru/wp-content/plugins/super-forms/uploads/php/files/3d4d4df146e34ebf0016fcf6e3594d6d/nikumutujazeziwix.pdfIn PDF document text
- https://afanasyev-design.ru/wp-content/plugins/super-forms/uploads/php/files/bf2c58047191568b7acf9641bdb7217b/wikimivizamadukiv.pdfIn PDF document text
- http://underbutter.cz/download/foto/siwabalokevalid.pdfIn PDF document text
- http://aire-limpio.com/img/editor/file/lututalafizofowubono.pdfIn PDF document text
- https://www.hed-endo.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1606ccfd9ca8ad---janadikosumikizufuluja.pdfIn PDF document text
- http://ritadas.in/userfiles/file/23542337681.pdfIn PDF document text
- http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/16087c44fd9699---wekifo.pdfIn PDF document text
- http://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/16078b072b0a9c---33746862489.pdfIn PDF document text
- https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/160980d4f1cdce---koweridirida.pdfIn PDF document text
- https://oncallanatomist.org/ckfinder/userfiles/files/99413744540.pdfIn PDF document text
- http://lindendirect.com/tempimg/file/11425938082.pdfIn PDF document text
- https://www.reparaciondebomba.com.ar/wp-content/plugins/super-forms/uploads/php/files/jpdmfdnbbr2q4j39a2rs63kgg7/retejezunonevegunizinegal.pdfIn PDF document text
- https://nadamasristorante.it/file/12320209700.pdfIn PDF document text
- http://www.lbf-cosmetics.com/website/wp-content/plugins/formcraft/file-upload/server/content/files/160a0c5ef93b3b---20768162640.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_off0000fa16.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA16 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00011228.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11228 | 17452 bytes |
SHA-256: 19f44f8fd25a90d0d85ccd312bb02610e48cadf2dd71dcd6d54e474ea625221f |
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font_02_sfnt_off00013fd8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13FD8 | 10928 bytes |
SHA-256: 0de108c3d7d073bae8ecd38e75fea166b910ed0774258632a2cfc7f3df7c5a0d |
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