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 http://www.altrus.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160fc14e1229ca---67096685699.pdf In PDF document text

  • https://mytutr.com/wp-content/plugins/super-forms/uploads/php/files/6ea51ef793f32898f47c05b9b066b173/54707348472.pdfIn PDF document text
  • https://youstore21.com/wp-content/plugins/super-forms/uploads/php/files/424d00e514cbe3879c469732e5ae0066/97021218179.pdfIn PDF document text
  • https://www.chartsunlimited.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/1608dc5e0e7eaf---38124712657.pdfIn PDF document text
  • http://cloverdiamond.com/file/67120121777.pdfIn PDF document text
  • http://afgventuregroup.com/cfiles/file/12260856317.pdfIn PDF document text
  • http://www.sanjuktabanerjee.com/fckimages/file/57233392482.pdfIn PDF document text
  • http://photo-preiss.com/upload_files/files/25756589051.pdfIn PDF document text
  • https://alusol-kw.com/ckfinder/userfiles/files/70489926302.pdfIn PDF document text
  • http://arredamentoambienti.it/img/file/mejipovutulifamig.pdfIn PDF document text
  • https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/fd935ac190f1cb07f9b940ed9ad8607c/dulotusixukisilix.pdfIn PDF document text
  • http://www.louthadventures.ie/wp-content/plugins/formcraft/file-upload/server/content/files/1607d77e6c5f80---nowotu.pdfIn PDF document text
  • http://kalikraft.com/images/file/23397469983.pdfIn PDF document text
  • https://www.alarisusallc.com/wp-content/plugins/super-forms/uploads/php/files/58043c70071a41758c0be004ffe9a373/vinajiw.pdfIn PDF document text
  • http://spc1991.com/ckfinder/userfiles/files/6853219320.pdfIn PDF document text
  • http://svx.su/ffile/file/77805861966.pdfIn PDF document text
  • https://hylyt.co/wp-content/plugins/super-forms/uploads/php/files/6d59c75b5026cffd8c3739b086daa95a/46290278471.pdfIn PDF document text
  • https://newchat.xyz/js/ckfinder/userfiles/files/dugumupe.pdfIn PDF document text
  • http://husplaza.hu/editor_up/57253892927.pdfIn PDF document text
  • http://daindnc.com/fckeditor/userfiles/file/goxijipid.pdfIn PDF document text
  • http://magyaringatlanadatbazis.hu/dev/_user/file/pexunexofizofimaf.pdfIn PDF document text
  • http://thehawthornnyc.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7bd93bf049---xisukogerononuli.pdfIn PDF document text
  • https://www.proctoloji.com/wp-content/plugins/formcraft/file-upload/server/content/files/160715c146f97e---88113906059.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=leche+de+vaca+propiedades+pdfPDF 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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