Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
  PDF 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.
• Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• External URI info PDF_URI
  PDF contains an external URL action
• Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
  The 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.
• Embedded URL info EMBEDDED_URL
  One 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=hotspot+network+not+showing+up PDF link annotation

  • https://100tmt.com/uploadimage/files/20210918183623.pdfIn PDF document text
  • https://www.auditek.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16147b49c5f782---52164548045.pdfIn PDF document text
  • https://pensionradvanice.cz/res/file/32726697536.pdfIn PDF document text
  • http://joyear.com/ckfinder/userfiles/files/nufifodopolopix.pdfIn PDF document text
  • https://infrastone.com/userfiles/files/suroralogegamibuxudi.pdfIn PDF document text
  • https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136c527125bd---goxuravififopolexi.pdfIn PDF document text
  • http://plncse.hu/php_data/file/54554440889.pdfIn PDF document text
  • https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/cf6esad1kr1hng4cq441m39nkn/gezozufizeviguja.pdfIn PDF document text
  • https://pottoka.info/files/galeria/files/62914136199.pdfIn PDF document text
  • https://clinicaabrahaoosta.com.br/ckfinder/userfiles/files/sokepeludu.pdfIn PDF document text
  • https://habrit.tw/ckfinder/userfiles/files/nixufad.pdfIn PDF document text
  • http://tischlerei-schlusche.de/sites/default/files/file/bobevusawaribofu.pdfIn PDF document text
  • http://haraj-alqunfudhah.com/userfiles/file/rugakugalopizifikotexunow.pdfIn PDF document text
  • https://shevtsov-art.com/uploads/files/basad.pdfIn PDF document text
  • http://davobio.com/upload/files/91708819701.pdfIn PDF document text
  • http://lawfirm.vn/MINH/user_files/file/61917480030.pdfIn PDF document text
  • http://euro-ex.net/images/blog/file/regupalavegaxe.pdfIn PDF document text
  • http://gasnguyenanhst.com/js/ckfinder/userfiles/files/94011935666.pdfIn PDF document text
  • http://basyapiemlak.com/yukleme_klasoru/userfiles/file/41445243585.pdfIn PDF document text
  • http://almawred-sy.com/files/adminfiles/files/19703346241.pdfIn PDF document text
  • https://rosanaalvarracin.com/userfiles/file/60201734142.pdfIn PDF document text
  • http://m-camper.ru/ckfinder/userfiles/files/27031117496.pdfIn PDF document text
  • http://electrogalicia.com/electrogalicia/recursos/archivos/dipugegojulukudefivibapag.pdfIn PDF document text
  • http://pnc21.com/files/fckeditor/file/19651579966135546d3bd05.pdfIn PDF document text
  • https://suavitinhtannha.net/upload/files/24928216154.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

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