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.
• Cloud document impersonation lure medium SE_CLOUD_DOC_LURE
  Document impersonates a cloud file-sharing service such as SharePoint, OneDrive, Google Drive, Dropbox, Box, or Microsoft 365 and asks the user to open, verify, or access a shared document
• 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://medvor.ru/uplcv?utm_term=convertir+pdf+a+ppt+editable+online PDF link annotation

  • http://easternsheep.by/app/upload/file/48234775230.pdfIn PDF document text
  • https://reflexlighting.com/wp-content/plugins/super-forms/uploads/php/files/ec296b3f802bb09138b4a87f57ebc471/ragijuxovidi.pdfIn PDF document text
  • http://herfon-machinery.com/images/ckfinder/files/20210822025913.pdfIn PDF document text
  • http://musthighschool.mn/ckfinder/userfiles/files/4484306799.pdfIn PDF document text
  • http://shsclassof1970.org/clients/872719/File/lumiwinadev.pdfIn PDF document text
  • https://www.expoagrogto.com/wp-content/plugins/super-forms/uploads/php/files/2v0ceqptssh83pcn96c4rp69n1/59274534869.pdfIn PDF document text
  • http://optikametuje.cz/userfiles/file/vufegatowemabekoridile.pdfIn PDF document text
  • https://hostsolutions.ro/app/webroot/files/userfiles/files/25205226394.pdfIn PDF document text
  • https://makemycake.gr/wp-content/plugins/super-forms/uploads/php/files/c02obl13s931bu5o8irb1d5es8/64189272824.pdfIn PDF document text
  • http://www.rosabrockenhaus.ch/ckfinder/userfiles/files/befumi.pdfIn PDF document text
  • http://creative-format.com/upload/editor/files/79166168627.pdfIn PDF document text
  • http://panziofabian.hu/fck_kepek/tofutexenixuwol.pdfIn PDF document text
  • https://mcdpiti.com/userfiles/files/89786116646.pdfIn PDF document text
  • http://www.kidnuri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a31f6a1791a---jugafutaluxemamuz.pdfIn PDF document text
  • http://minhledtran.com/luutru/files/42059858475.pdfIn PDF document text
  • http://jingchengs.com/jingchengs/ckfinder/files/20210808092135.pdfIn PDF document text
  • https://dascalita.ro/app/webroot/files/userfiles/files/wegotevexudikogu.pdfIn PDF document text
  • http://ackerviewguesthouse.com/userfiles/file/27230836941.pdfIn PDF document text
  • http://xn--9d0b102a6wc3y4a.com/sa_upload/userfiles/file/20210520054205.pdfIn PDF document text
  • http://www.buildonhope.org/file/46227112351.pdfIn PDF document text
  • http://pmteventures.com/clients/5/57/576e8e71b788aac95a268099fab76a3d/File/5617432274.pdfIn PDF document text
  • https://infrastone.com/userfiles/files/lisusidejupupewaderal.pdfIn PDF document text
  • https://www.18fire.com/wp-content/plugins/super-forms/uploads/php/files/e75b06e06fffb7b2cda05ed1097e774e/52097326187.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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