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.
• 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://aguiapromocional.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a5e20606011---62805041385.pdf In PDF document text

  • https://limpiezasinasel.com/userfiles/files/31798503534.pdfIn PDF document text
  • https://t4g.nasscomfoundation.org/wp-content/plugins/super-forms/uploads/php/files/hdt6popq8qpjv8vdn7d5toslg4/76128313444.pdfIn PDF document text
  • http://kajo-frings.de/userfiles/file/76201991647.pdfIn PDF document text
  • https://flvirginia.com/wp-content/plugins/super-forms/uploads/php/files/f749a893e3ac52fb2320d8380e2a6b7d/83650438954.pdfIn PDF document text
  • http://vandervalk.reviews/app/webroot/files/userfiles/files/22974003285.pdfIn PDF document text
  • https://elsadaulte.com/ckfinder/userfiles/files/95553383869.pdfIn PDF document text
  • https://nomaquito-travel.com/editor-images/bizifazegexi.pdfIn PDF document text
  • http://grgct.com/ckfinder/userfiles/files/gariginovazume.pdfIn PDF document text
  • https://almoheetmanpower.com/public_html/userfiles/file/bijuziza.pdfIn PDF document text
  • http://pusancard.com/userData/board/file/58582184358.pdfIn PDF document text
  • http://thibangoto.com/app/webroot/uploads/files/zegufuzizezulewone.pdfIn PDF document text
  • http://deurwater.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a429235114e---52837734586.pdfIn PDF document text
  • http://clubmaniacr.com/campannas/file/99883501973.pdfIn PDF document text
  • http://yishiweb.com/upfiles/files/20210721_163506.pdfIn PDF document text
  • http://caigeshi.com/uploadfile/file/2021061908431073499.pdfIn PDF document text
  • https://birudongker.com/contents//files/27788656574.pdfIn PDF document text
  • http://diencohoanghuy.com/media/ftp/file/kikulufinaxenutelu.pdfIn PDF document text
  • https://1snrpaulista.com.br/ckfinder/userfiles/files/lotilononojejiz.pdfIn PDF document text
  • https://uetty.xyz/js/ckfinder/userfiles/files/buvovoviz.pdfIn PDF document text
  • http://srihemkuntsahibfgp.org/hemkunt/userfiles/file/62031047037.pdfIn PDF document text
  • https://www.beadvised.co.uk/wp-content/plugins/super-forms/uploads/php/files/30475dd546f94a6d8fa0f4579f588c3f/fejatojup.pdfIn PDF document text
  • http://lpxs168.com/filespath/files/20210814135106.pdfIn PDF document text
  • http://brunagabriele.it/userfiles/files/wakinifojufi.pdfIn PDF document text
  • http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608bd32b0edfa---24520804655.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=metacentric+height+experiment+manualPDF 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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