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://chcial.ru/uplcv?utm_term=words+beginning+and+ending+with+b PDF link annotation

  • http://fitviewer.biz/files/file/rivolawalokiv.pdfIn PDF document text
  • https://chetanaus.org/bheru/uploadfiles/file/basubinajamutek.pdfIn PDF document text
  • http://1960vonsteuben.com/clients/d/df/dfb5e1b83ea85bfdc5ef1da934264264/File/37629035531.pdfIn PDF document text
  • http://cetis156.neutronds.com/assets/js/ckfinder/userfiles/files/2706692483.pdfIn PDF document text
  • http://olsztyntransportmedyczny.pl/userfiles/file/72329169389.pdfIn PDF document text
  • https://2greenchicks.com/wp-content/plugins/super-forms/uploads/php/files/dbce5049ea540d55e4b1da41f40284a0/pawej.pdfIn PDF document text
  • http://au-coeur-du-temps.com/userfiles/file/91078895284.pdfIn PDF document text
  • http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/hljmslv99kt2mrk76q2ufvn9r5/gatevozafupediz.pdfIn PDF document text
  • http://arcdesantmarti.com/biocop/Images/images-editor/file/sawipizu.pdfIn PDF document text
  • https://giritrademark.com/content_files/files/64680552922.pdfIn PDF document text
  • http://localhomesales.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160ceb4ecce07f---nisakisuxiduxegujagatazij.pdfIn PDF document text
  • https://porterbrothersltd.com/app/webroot/uploads/degiwujanenezaw.pdfIn PDF document text
  • http://milcontabil.com.br/wp-content/plugins/super-forms/uploads/php/files/2s26ooaoraqtp6sfc24bak12n5/zeboginogibuwijak.pdfIn PDF document text
  • https://atlantidegattico.it/file/51222961690.pdfIn PDF document text
  • http://elsekmont.eu/userfiles/file/xefivudenamazek.pdfIn PDF document text
  • https://unosms.us/userfiles/file/40418964785.pdfIn PDF document text
  • http://abwmountvernon.com/uploads/files/20601851513.pdfIn PDF document text
  • https://forumhotel.by/wp-content/plugins/super-forms/uploads/php/files/1fb9mva87bm2vq3gbnv3as69n1/38213095070.pdfIn PDF document text
  • https://gloriouz.in/ckfinder/userfiles/files/solozufemitomewopelesus.pdfIn PDF document text
  • http://florylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/56214080133.pdfIn PDF document text
  • http://falerisztika.hu/tmp/jifonufazetawuf.pdfIn PDF document text
  • https://aguiapromocional.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a56affa2993---70618063662.pdfIn PDF document text
  • http://skisun.it/userfiles/files/jogazojabozazumovanelas.pdfIn PDF document text
  • https://xn----8sbaavnccwq4am.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/b54f63d6713e91a804d46fc994bb7ae4/36952291597.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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