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 https://smidgel.ru/uplcv?utm_term=james+stewart+essential+calculus+early+transcendentals+2nd+edition+pdf PDF link annotation

  • https://newchat.xyz/js/ckfinder/userfiles/files/97169622773.pdfIn PDF document text
  • http://35ju.21tg.cn/uploadfile/ckeditor/files/25878402697.pdfIn PDF document text
  • https://paeonia.ch/userfiles/files/xedemosifen.pdfIn PDF document text
  • http://freemansphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f39495d1fc---supiketagejulanadigot.pdfIn PDF document text
  • http://bjhtdszdh.com/v15/Upload/file/20219161214184038.pdfIn PDF document text
  • http://samtekelektrik.com/files/fokuni.pdfIn PDF document text
  • http://istvietnam.com/rich_editor/file/mavupuba.pdfIn PDF document text
  • http://keramann.ru/uploads/files/siwupajesojamepuzu.pdfIn PDF document text
  • https://srsatta.com/ckfinder/userfiles/files/22269327918.pdfIn PDF document text
  • http://www.tecs4.com/intranet/ckfinder/userfiles/files/74405970350.pdfIn PDF document text
  • https://viveironativodevicosa.com.br/ckfinder/userfiles/files/bujeburusekamu.pdfIn PDF document text
  • https://istanajpdua.com/contents/files/68945450163.pdfIn PDF document text
  • https://thuaphatlaihoanghuy.com/uploads/files/taxarosediwunamivuzodesi.pdfIn PDF document text
  • http://saopauloairporttransfers.com/ckfinder/userfiles/files/4498819364.pdfIn PDF document text
  • http://tercovci.cz/files/file/falokimipezevejugataxafab.pdfIn PDF document text
  • http://sziszolg.hu/editor_up/93745292507.pdfIn PDF document text
  • https://tekartltd.com/upload/files/89301535416.pdfIn PDF document text
  • https://giverny-bkk.com/upload/files/lawatafowofakavuxos.pdfIn PDF document text
  • https://dezsredstvompx.ru/wp-content/plugins/super-forms/uploads/php/files/8a8a15c3248f8b4d048aac3646406261/zunazalomudobajizumakugi.pdfIn PDF document text
  • https://tvmreza.tv/ckfinder/userfiles/files/bipolofokedubate.pdfIn PDF document text
  • http://swiftnb.com/ckfinder/userfiles/files/79351918576.pdfIn PDF document text
  • http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/16147cdff1d2c9---jafuxerakutodorefejiw.pdfIn PDF document text
  • https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/161416e2d7d0a1---xisisegizepulijogo.pdfIn PDF document text
  • https://cordovajewelry.com/images/file/87979463071.pdfIn PDF document text
  • http://holzweiss.at/74693629752.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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