Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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://pistant.ru/uplcv?utm_term=mortal+kombat+running+time+2021 PDF link annotation

  • http://geofer.eu/userfiles/files/12579148168.pdfIn PDF document text
  • https://paradigma.bg/uf/file/43837345033.pdfIn PDF document text
  • http://www.acefence.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142cbe6aae2d---80079760292.pdfIn PDF document text
  • https://binarbaidequipment.com/public_html/userfiles/file/51764765752.pdfIn PDF document text
  • https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/161365c6b41bc2---51130862049.pdfIn PDF document text
  • https://gretajensen.com/ckfinder/userfiles/files/bupiparipeben.pdfIn PDF document text
  • http://espokebar.com/uploads/files/susokivalerasesovosuz.pdfIn PDF document text
  • http://opuspointpartners.com/ckfinder/userfiles/files/zapuxujopu.pdfIn PDF document text
  • https://edukiya.com/wp-content/plugins/super-forms/uploads/php/files/376c24c4d23d232c2c13b679b593e6f9/fakajuxuba.pdfIn PDF document text
  • http://illinoislivestock.org/userfiles/file/31285232136.pdfIn PDF document text
  • http://scuderia512.com/js/upload/files/76323444177.pdfIn PDF document text
  • https://kenadong.com/contents/files/sakefoxojexomalekum.pdfIn PDF document text
  • https://costarica4d.com/contents/files/24663188408.pdfIn PDF document text
  • http://15441707.com/data/board/file/20210905223412.pdfIn PDF document text
  • http://www.leads-bd.org/app/webroot/js/ckfinder/userfiles/files/lewowanofu.pdfIn PDF document text
  • http://erago.cidees.com/uploads/files/75332204622.pdfIn PDF document text
  • https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/49f063078fc585fd4e4dc6ce3966778c/34935065234.pdfIn PDF document text
  • http://sparkpro.lv/content/file/sopijololeserasowuvez.pdfIn PDF document text
  • http://chagatea.ru/wp-content/plugins/super-forms/uploads/php/files/29c04bffbe7a7f38ecd6c5455145d63b/38341838237.pdfIn PDF document text
  • http://3bbb.fr/ckeditor/upload/files/nulasuripinejubeka.pdfIn PDF document text
  • https://recapress.com/ckfinder/userfiles/files/nufisadanemanevapudixo.pdfIn PDF document text
  • https://www.hinkler.com.au/application/third_party/ckfinder/userfiles/files/10410616192.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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