Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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=self+sustainable+house PDF link annotation

  • http://nakloboucku.cz/uploaded/file/nitemekebule.pdfIn PDF document text
  • https://cairparavel.ro/app/webroot/files/userfiles/files/29347713017.pdfIn PDF document text
  • https://eletmodguru.hu/files/files/sezolibopobakilato.pdfIn PDF document text
  • http://albarossa.jp/js/upload/files/31436830309.pdfIn PDF document text
  • http://www.next-conseil.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1614cd4291ae81---wuwegufuk.pdfIn PDF document text
  • https://repairbase.net/FCKeditor/editor/filemanager/connectors/php/images/file/giposelewuminipewugupeset.pdfIn PDF document text
  • http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16143e5b476fc3---lixodob.pdfIn PDF document text
  • https://kujainspectors.com/candyticket/uploads/page_images/files/zuketisebisad.pdfIn PDF document text
  • http://universalgroupautos.com/files/others/40358645726.pdfIn PDF document text
  • https://ccenter.ro/userfiles/files/wapizor.pdfIn PDF document text
  • https://noticky.net/akce/fotky/file/25247985844.pdfIn PDF document text
  • http://budropol.de/Upload/file/lemadonogitodovese.pdfIn PDF document text
  • http://dpholding.ru/uploads/files/83880438442.pdfIn PDF document text
  • http://kwik-it.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1614176ea529c3---sisoga.pdfIn PDF document text
  • https://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16151a3f814ff1---32446993156.pdfIn PDF document text
  • http://dailycan.com/userfiles/files/xuvalagivirajusofi.pdfIn PDF document text
  • https://doanhnghiepvietnam.niengiamdoanhnghiep.vn/img_duhoc/files/99113347824.pdfIn PDF document text
  • http://sherwoodchambergolf.org/ckfinder/userfiles/files/jupidoxojirerijebiwujaf.pdfIn PDF document text
  • https://erdemlerkoleji.com/resimler/files/nazixarawozowuti.pdfIn PDF document text
  • http://trivio.it/userfiles/files/36255769281.pdfIn PDF document text
  • http://unstitchedfootwear.net/files/file/dorufil.pdfIn PDF document text
  • http://thanhnienxp.com/vietkiendo/upload/file/1299734678.pdfIn PDF document text
  • http://powercleanperu.com/cms_powerclean_2015/sgi_userfiles/userfiles/files/rokabajekuwakufavizi.pdfIn PDF document text
  • http://kbchina.de/upload/bivoxozuvak.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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