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.
• Fake invoice / payment lure low SE_INVOICE_LURE
  Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
• 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://pistant.ru/uplcv?utm_term=circular+flow+of+income+with+diagram PDF link annotation

  • http://alexhofford.com/temp/files/file/21058945926.pdfIn PDF document text
  • http://vudafrique.com/wp-content/plugins/super-forms/uploads/php/files/aba0cdd8629958c525970c2ea140d352/wulakiwagupigex.pdfIn PDF document text
  • https://www.getfitcrew.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c7a9663c3e---7536260207.pdfIn PDF document text
  • https://scavilecis.it/userfiles/file/59472898166.pdfIn PDF document text
  • http://abwferrellpkwy.com/uploads/files/32767852349.pdfIn PDF document text
  • https://www.areatransfers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e2617d3616---84618033951.pdfIn PDF document text
  • https://www.accidentinjurylascruces.com/wp-content/plugins/super-forms/uploads/php/files/2et85dh406iksnvehme618ek4j/70594574501.pdfIn PDF document text
  • https://calldidocta.com/wp-content/plugins/super-forms/uploads/php/files/5803fafa284a1ef6d8e42329c2a39706/91052838486.pdfIn PDF document text
  • http://www.farnostbobrova.cz/ckfinder/files/bidipakanabarewufa.pdfIn PDF document text
  • https://stayinbranson.com/ckfinder/triplebuserfiles/file/22493437139.pdfIn PDF document text
  • http://solarexperten.ch/fckeditor/editor/images/file/36102418586.pdfIn PDF document text
  • http://czdashan.cn/uploadfile/file/2021043018173273499.pdfIn PDF document text
  • http://cesishotel.com/res/wysiwyg/file/difinirezikupegelur.pdfIn PDF document text
  • https://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098426c912bf---91944248156.pdfIn PDF document text
  • http://chocolatycakes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a758b44bc54---sarozevego.pdfIn PDF document text
  • https://www.oasipizza.it/wp-content/plugins/formcraft/file-upload/server/content/files/16089a67a16ba8---66587914229.pdfIn PDF document text
  • https://agrilaui.com/userfiles/file/vifuzumanukexu.pdfIn PDF document text
  • http://apexibd.com/uploads/fck_uploads/file/80614422902.pdfIn PDF document text
  • http://www.holzbau-hoelzl.at/wp-content/plugins/formcraft/file-upload/server/content/files/160d21f286e441---64210153082.pdfIn PDF document text
  • http://www.jcca.co.in/wp-content/plugins/formcraft/file-upload/server/content/files/160a33e3c0da11---42715248295.pdfIn PDF document text
  • http://thegioidahoacuong.com/uploads/image/files/94243610891.pdfIn PDF document text
  • https://dfa-finanz.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca61e9976c---53427167642.pdfIn PDF document text
  • http://dmn.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160a240c6070b1---37758305528.pdfIn PDF document text
  • http://scuderia512.com/js/upload/files/xanowitagelezarigo.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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