MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier. It contains numerous links, many pointing to compromised WordPress sites, suggesting it's part of a link farm designed to redirect users to malicious content. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics indicates a sophisticated effort to obscure the final destination. While no scripts were explicitly extracted, the PDF structure and link farm behavior strongly suggest it's designed to lead users to a phishing or malware distribution site.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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://crysiq.ru/uplcv?utm_term=massachusetts+car+bill+of+sale+form+free
- https://www.stamfordtaxis.com/wp-content/plugins/super-forms/uploads/php/files/7tq4afm7d8qs18paajdpj0rhth/37279613146.pdf
- http://thienlongadv.com/upload/files/dosixafuveporelusenov.pdf
- https://adbetelparaguay.com/wp-content/plugins/super-forms/uploads/php/files/f313f5dcdb502f65fe495fd447dfc097/wiwasidomisajuzexejenax.pdf
- https://healthmatters.me/userfiles/file/zejobolijovulawekubatufof.pdf
- https://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085a1065c53c---48376023540.pdf
- https://gulceoyunlar.com/calisma2/files/uploads/gutavuvojugadar.pdf
- http://jagodkaprzedszkole.pl/userfiles/file/wobetoj.pdf
- https://growmytruck.com/wp-content/plugins/super-forms/uploads/php/files/90066991e35cfd0dbbb2c8ea95c10453/464251658.pdf
- http://villaturri.it/wp-content/plugins/formcraft/file-upload/server/content/files/160a43752d92b2---jiziwol.pdf
- http://libertyquad72.fr/userfiles/file/gabopoviwebuvokol.pdf
- https://syntellect.ru/Repository/file/porobatudanumasedax.pdf
- http://sentezetutmerkezi.com/upload/ckfinder/files/82574516759.pdf
- http://www.anclupnapoli.it/userfiles/file/bugivalokeripogajotated.pdf
- https://www.mobytec.com.br/mobytec/wp-content/plugins/formcraft/file-upload/server/content/files/1609e5e7990be1---folifuxedenosibatikamoga.pdf
- https://kayakbranson.com/wp-content/plugins/formcraft/file-upload/server/content/files/16100b421f2c12---zobojopedaf.pdf
- https://digireg.se/upload/semedavipunewevokezege.pdf
- https://denizlihorozu.com/resimler/files/54025100382.pdf
- https://proxus.nl/file/67033450011.pdf
- http://nc2e.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160a0175269c84---51815593295.pdf
- https://museos.comarcadelasierradealbarracin.es/ckfinder/userfiles/files/30563985279.pdf
- http://www.gcsystem.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1609fed562aa62---48644900855.pdf
- https://www.cedicar.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079ac9ada728---zezabidazow.pdf
- http://prodesign31.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160a8ab85b0655---pigitunijejekona.pdf
- https://sce.tw/uploads/files/60d2331f66d49.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000fde3.bin9b2f1e187be134d2a3b5f248174c08f8570c8a266f8a8840d509eee74c82bc9c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDE3 | 10728 bytes |
font_01_sfnt_off0001168c.bin8a1b7a2bbe25f4a73a0614e462ea7a52dde6fc4f4fb252dce9872b0008e8be57 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1168C | 17140 bytes |
font_02_sfnt_off00014382.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14382 | 16792 bytes |
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