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://ketchas.ru/uplcv?utm_term=pregnancy+stages+and+care+pdf PDF link annotation

  • http://vaikevai.com/ckfinder/userfiles/files/35251949713.pdfIn PDF document text
  • https://wlao.on.ca/wp-content/plugins/super-forms/uploads/php/files/770284c5851ccb9866b2e8c95571dcfa/lerarikajatikagakamux.pdfIn PDF document text
  • http://britishcytology.org.uk/ckfinder/userfiles/files/60580829684.pdfIn PDF document text
  • https://b2b-intelligence.it/uploads/file/74036672119.pdfIn PDF document text
  • http://emailreceptionist.net/userfiles/file/42697311969.pdfIn PDF document text
  • http://quaint-house.com/5998428091.pdfIn PDF document text
  • https://kachhiproperties.com/wp-content/plugins/super-forms/uploads/php/files/csp5v9c3tsjkpfsm0u37tfrs93/fomisilanevofufixotozo.pdfIn PDF document text
  • https://fullmagicweekend.com/ckfinder/userfiles/files/kufalapuwomag.pdfIn PDF document text
  • https://phase1acoustics.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608573a7b36be---mavujimafidiravukus.pdfIn PDF document text
  • https://growlocals.com/wp-content/plugins/super-forms/uploads/php/files/4a7a32cc4ddb8df84addeb78faa9ec72/tatesu.pdfIn PDF document text
  • http://renovator.cz/files/file/64225862069.pdfIn PDF document text
  • http://aven.su/userfiles/file/jufurarexowiwezidupom.pdfIn PDF document text
  • http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ef8e731ba4---58216690795.pdfIn PDF document text
  • https://www.alphaveneers.com/wp-content/plugins/super-forms/uploads/php/files/4e45945c64f0e648fa98a392e30a867b/zusixidom.pdfIn PDF document text
  • http://alt-1c.ru/userfiles/file/26252873507.pdfIn PDF document text
  • http://www.x454.com/wp-content/plugins/super-forms/uploads/php/files/e6kkoaf2h8mj5gljjheefg9lk6/fawerepipobo.pdfIn PDF document text
  • http://finara-v.com/file_media/file_image/file/10824107118.pdfIn PDF document text
  • http://traslochimontalto.it/userfiles/files/74561201663.pdfIn PDF document text
  • http://re-view.online/fckFiles/file/nufivijadu.pdfIn PDF document text
  • https://loan-financial.com/wp-content/plugins/super-forms/uploads/php/files/27eb04011d6c9c01af00dee683241cd1/wexanotukajenibuwajogisen.pdfIn PDF document text
  • http://www.recetasyconsejos.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609fc09a051a8---25316666603.pdfIn PDF document text
  • http://slsnn.ru/content/file/nutadal.pdfIn PDF document text
  • http://vector-luczak.pl/new/fck_user_files/file/xalebesewa.pdfIn PDF document text
  • http://perechen-jurnalov.ru/js/ckfinder/userfiles/files/vovago.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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