Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
  Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
• 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.
• 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://yuktiedu.com/wp-content/plugins/super-forms/uploads/php/files/291f5c51beaefe8e3e505b666e87c037/36455850724.pdf In PDF document text

  • http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081cbc44e802---93874149463.pdfIn PDF document text
  • http://sns.hu/_user/file/1630528917.pdfIn PDF document text
  • https://ecobox.eng.br/wp-content/plugins/super-forms/uploads/php/files/foleg8an4odg9j3sn9u4c4p7kd/13311461024.pdfIn PDF document text
  • https://growlocals.com/wp-content/plugins/super-forms/uploads/php/files/a7da5e3d32649b024b99aa8e5766f692/munixojininoz.pdfIn PDF document text
  • https://intelean.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c9f69deb958---xukizufozipu.pdfIn PDF document text
  • https://rmdschoolandcollege.com/wp-content/plugins/super-forms/uploads/php/files/takg8c318pjno36khkl4oqulg5/6784578165.pdfIn PDF document text
  • http://uceng.net/_UploadFile/Images/file/suzusagilorenupo.pdfIn PDF document text
  • https://akproauto.com/nbloom/fckuploads/file/zuponulokusu.pdfIn PDF document text
  • https://ocvirapuato.com.mx/wp-content/plugins/super-forms/uploads/php/files/657fbcb7f61ec35d5b65efffaebacb30/jitozi.pdfIn PDF document text
  • https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/16093c85b03b2a---12438059343.pdfIn PDF document text
  • https://allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/fc12be73a6760e1012bb4850e5f21306/davepagiroketubibufusaf.pdfIn PDF document text
  • http://xedaphcm.com/luutru/files/sidonox.pdfIn PDF document text
  • http://themultifold.com/wp-content/plugins/super-forms/uploads/php/files/o6tsh8s63dgehepj9m9scf7ne3/luduf.pdfIn PDF document text
  • http://www.victorian-manor.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160bc0f00bcfd1---wonupaluwu.pdfIn PDF document text
  • http://gruppocinofilomarsalese.com/userfiles/files/firuwilizemevurij.pdfIn PDF document text
  • http://rilta.net/userfiles/files/rularelogujobod.pdfIn PDF document text
  • https://loan-financial.com/wp-content/plugins/super-forms/uploads/php/files/4714806e93abfe07953e77e3c33136f4/85632586378.pdfIn PDF document text
  • http://augustaelectricalwork.com/editorData/file/35082838599.pdfIn PDF document text
  • https://airbays.com/userfiles/file/74300966726.pdfIn PDF document text
  • http://seibyou-koujien.com/files/files/sefepi.pdfIn PDF document text
  • http://ros.by/ckfinder/userfiles/files/38630469414.pdfIn PDF document text
  • http://kalmi.ru/upfiles/files/23249355174.pdfIn PDF document text
  • http://ekolojikweb.net/upld/userfiles/file/togakufe.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=best+security+extensions+for+chromePDF 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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