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://crysiq.ru/uplcv?utm_term=quantitative+analysis+for+management+13th+edition+solutions+pdf PDF link annotation

  • http://dj-venci.com/uploads/pages/files/xilukolalewajek.pdfIn PDF document text
  • http://www.ellisrasbetonwerke.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160753bca27664---24376680699.pdfIn PDF document text
  • http://premiumresourcing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ee11e9eb1a---63913555007.pdfIn PDF document text
  • https://borderpak.com/wp-content/plugins/super-forms/uploads/php/files/8daa4711f504a50b3cd46ca6ff036706/ravavuviluferilodir.pdfIn PDF document text
  • https://leesman.com/wp-content/plugins/super-forms/uploads/php/files/dc7c11a6f98259a328a1dd58bd9e27e1/mupezonireduginumefumopi.pdfIn PDF document text
  • https://technische-dokumentation-hoffmann.com/upload/files/13726319790.pdfIn PDF document text
  • http://100gastro.cz/soubory/files/bapatokeparozepakij.pdfIn PDF document text
  • http://www.suffaheducation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa41107e04b---raxonagok.pdfIn PDF document text
  • https://engineeredrepinc.com/wp-content/plugins/super-forms/uploads/php/files/2a330d06d977330f6e0bb0eb3fc63da8/lutedidetagufuwiziletij.pdfIn PDF document text
  • http://plenar.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160cd9d66a99f5---80482496643.pdfIn PDF document text
  • https://ecoinkworld.com/wp-content/plugins/super-forms/uploads/php/files/69ca161893b4eae6c1c56cb1bc4b55b0/28622116766.pdfIn PDF document text
  • https://husvagnsexpo.se/wp-content/plugins/formcraft/file-upload/server/content/files/160985e6378224---19015076684.pdfIn PDF document text
  • http://www.smwiarus.pl/ckfinder/userfiles/files/97862454542.pdfIn PDF document text
  • https://rowadalbyt.com/userfiles/files/fufetiderefubafiw.pdfIn PDF document text
  • http://kingsauto-bar.com/js/upload/files/dodixejemitozo.pdfIn PDF document text
  • https://asiarsolutions.com/userfiles/file/48074297618.pdfIn PDF document text
  • https://kamber.dk/wp-content/plugins/super-forms/uploads/php/files/62a2d5838be5fc4958c1e66f64bb57f9/larovumubujak.pdfIn PDF document text
  • http://mobilenmr.com/files/files/42030388195.pdfIn PDF document text
  • https://healthcareadvisorsgroup.com/wp-content/plugins/super-forms/uploads/php/files/h6k2htsqlenjbsea01f6a96e02/dakewolibesibekilir.pdfIn PDF document text
  • http://feach.ie/images/uploads/file/ditezeberokilufom.pdfIn PDF document text
  • https://proia.bg/userfiles/file/80692219200.pdfIn PDF document text
  • http://praguetransfer.com/files/file/vulofawejajenavegi.pdfIn PDF document text
  • http://panhongbo.com/ckfinder/userfiles/site_eachfun_com/files/54137463066.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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