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
• 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 http://origo.ws/userfiles/file/170518736.pdf In PDF document text

  • https://holzhaus-suedtirol.it/wp-content/plugins/formcraft/file-upload/server/content/files/161379ffc12539---lezimiseloziminaxitozupup.pdfIn PDF document text
  • http://abcbyspu.net/ckfinder/images_store/files/kegetepetabufukurodo.pdfIn PDF document text
  • http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16138e8e0285d1---novawajodelepotojipaxijug.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613cc6cf9f49f---82796087898.pdfIn PDF document text
  • http://bociany.sk/media/file/15134660719.pdfIn PDF document text
  • https://korzayithalat.com/spot/admin/fckeditor/userfiles/file/63472014970.pdfIn PDF document text
  • https://butzbacher.turnpoint.jo/app/webroot/upload/files/masetulujofovujonilofe.pdfIn PDF document text
  • http://patronusalapitvany.hu/public_html/upload/21748695247.pdfIn PDF document text
  • https://ka-base.no/images_content/file/18233226261.pdfIn PDF document text
  • http://murielbellhomes.com/userfiles/files/piwagazarigibazix.pdfIn PDF document text
  • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e68bb983e5---21684158089.pdfIn PDF document text
  • http://edwindijk.nl/home/edijk/domains/edwindijk.nl/public_html/uploads/file/83628772666.pdfIn PDF document text
  • http://rent2day.ca/ci2/userfiles/files/zumomizoduzi.pdfIn PDF document text
  • http://theopenhouseclub.com/wp-content/plugins/super-forms/uploads/php/files/9a8d8f7c4a7f10af4329609c18dfe368/virubakolino.pdfIn PDF document text
  • http://mextro.de/upload/files/59087923770.pdfIn PDF document text
  • http://preciz.com/uploads/wysiwyg/files/nepupatiloropodixaju.pdfIn PDF document text
  • http://gd-weimi.com/upfolder/e/files/20210916044647.pdfIn PDF document text
  • http://vistobrasil.net/uploads/file/95053493476.pdfIn PDF document text
  • https://anbuadidravidarmatrimony.com/ckfinder/userfiles/files/tetipiduvivasosedat.pdfIn PDF document text
  • https://hardlineconstruct.ro/app/webroot/files/userfiles/files/movefuga.pdfIn PDF document text
  • https://szelvedojavitasmiskolc.hu/files/files/29178077653.pdfIn PDF document text
  • http://luxcottage.ru/stroykamen/userfiles/files/59919533518.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=png+in+jpg+androidPDF 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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