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.
• 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 https://medvor.ru/uplcv?utm_term=signing+naturally+units+1-6+pdf+answers PDF link annotation

  • https://bykevin.com/wp-content/plugins/super-forms/uploads/php/files/21b8632e6fe0eda993745ae4277c4d00/bubozepeba.pdfIn PDF document text
  • http://aeskulap24h.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b6b4a048993---34449551767.pdfIn PDF document text
  • https://primax.fr/wp-content/plugins/super-forms/uploads/php/files/jd6vdo0ove5olq0qb4nqhm3ub2/94081569288.pdfIn PDF document text
  • http://www.lauricedale.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160705d8a963e5---72739904957.pdfIn PDF document text
  • https://www.fifatravels.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bca04d0bfa6---memajuzo.pdfIn PDF document text
  • https://forumhotel.by/wp-content/plugins/super-forms/uploads/php/files/hkel1cj2598o6dfgqfbq1eucl0/74458699382.pdfIn PDF document text
  • https://monarchwinemerchants.com/wp-content/plugins/super-forms/uploads/php/files/bed1ac7d15600ae8f3f8129ae29c8bc0/zosifiranamovapadasimi.pdfIn PDF document text
  • https://appfacile.it/file/ladugad.pdfIn PDF document text
  • http://ifaistos.reality.gr/~triantaf/images/file/41092784176.pdfIn PDF document text
  • https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0e0c607fe8---57720412767.pdfIn PDF document text
  • https://afriqueitnews.com/wp-content/plugins/super-forms/uploads/php/files/b197f1ab30a46034d5e300ed28633be4/vuketilunewabigatax.pdfIn PDF document text
  • http://beateromer.com/bilder/file/getananugakuvapitu.pdfIn PDF document text
  • http://www.next-conseil.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1608f2716d1341---zirupigevokapufunelanu.pdfIn PDF document text
  • http://doudou.tw/userfiles/files/28987129237.pdfIn PDF document text
  • https://malimbe.africa/wp-content/plugins/super-forms/uploads/php/files/8e60ef3544df00a6898704e99c865c81/48666458072.pdfIn PDF document text
  • https://ctapigroup3.com/contents//files/mexamitevunomadesebewat.pdfIn PDF document text
  • http://centrons.com/uploaded/file/37770611660b48ab77a9b6.pdfIn PDF document text
  • http://luatsutiengtrung.com/app/webroot/uploads/files/72286416846.pdfIn PDF document text
  • https://anjingliar.com/contents/files/deratatamiwix.pdfIn PDF document text
  • http://norilskgu.ru/userfiles/file/91269181244.pdfIn PDF document text
  • http://foire-fromages-et-vins.com/wp-content/plugins/formcraft/file-upload/server/content/files/160950d010e364---jefuk.pdfIn PDF document text
  • http://www.oneworldkarate.com/fckeditorimages/userfiles/file/xenuwa.pdfIn PDF document text
  • http://esipro.lu/userfiles/file/21572034188.pdfIn PDF document text
  • http://sarahscupcakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a15f91d47b3---zigekoxaduwuxakirapavit.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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