Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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 http://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/160a36c7d9313d---4616677622.pdf In PDF document text

  • http://eastwoodfamily.net/userimages/regub.pdfIn PDF document text
  • http://xn--80aesyq.xn--p1acf/files/file/98506741525.pdfIn PDF document text
  • http://rusiuojigalvoji.lt/wp-content/plugins/formcraft/file-upload/server/content/files/160a8aa2001145---82645206452.pdfIn PDF document text
  • http://thekitchendesignstudio.org/uploads/files/vujedawe.pdfIn PDF document text
  • http://mfplus.ba/wp-content/plugins/formcraft/file-upload/server/content/files/160f631f37403c---tapuzavorekezigami.pdfIn PDF document text
  • https://www.davidcosz.de/wp-content/plugins/super-forms/uploads/php/files/j3avn493vifgpb18qn126voish/996036754.pdfIn PDF document text
  • https://bawaniint.com/ckfinder/userfiles/files/jesewuguzititikono.pdfIn PDF document text
  • http://edu-soft.ru/site/htmlimages/file/jowixewi.pdfIn PDF document text
  • http://paroissedementon.fr/upload/files/44389263837.pdfIn PDF document text
  • http://xn--tnqz8hz5cb8l.com/upload/files/25359923213.pdfIn PDF document text
  • https://autosofortkauf.ch/wp-content/plugins/super-forms/uploads/php/files/qj3l5uiok61nn7mfaoe8jpitm5/zizilu.pdfIn PDF document text
  • http://wearefamilypalestine.com/clients/3/3b/3bc38fc23f9ffb54b20226cbd6ad6ce3/File/limolexulakovurivumig.pdfIn PDF document text
  • http://ainut.fi/userfiles/file/49235536569.pdfIn PDF document text
  • https://www.travelknowhowscotland.co.uk/assets/js/ckfinder/userfiles/files/minab.pdfIn PDF document text
  • http://www.canadiantreasurer.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d0eb87a8dc---lofeniwixewaxok.pdfIn PDF document text
  • https://arab-hams.com/Ups/files/58675978127.pdfIn PDF document text
  • https://pasifikendustriyel.com/userfiles/file/85529594135.pdfIn PDF document text
  • http://richmediahouse.com/admin/uploads/file/lewijunekebujimopusikofaz.pdfIn PDF document text
  • https://12shio1.com/contents/files/52931505451.pdfIn PDF document text
  • http://elturo.ru/img/upload/files/wawudarapepup.pdfIn PDF document text
  • https://doellefjelde-mussemarked.dk/images/newsmail/file/tisum.pdfIn PDF document text
  • http://vpecargo.com/userfiles/file/60983392797.pdfIn PDF document text
  • https://aznamaste.com/ckfinder/userfiles/files/vifosijilegodawipo.pdfIn PDF document text
  • https://asiahealthcaredentalcentre.com/ckfinder/userfiles/files/zivipesorakowofifavut.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=coloring+shapes+worksheet+freePDF link annotation
  • 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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