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 https://huntic.ru/uplcv?utm_term=online+pdf+translator+italian+to+english PDF link annotation

  • https://kes-stv.ru/wp-content/plugins/super-forms/uploads/php/files/18b3332f84dc37ecf50579202d231f96/59703631620.pdfIn PDF document text
  • http://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c72205d3534---30072743709.pdfIn PDF document text
  • http://sosonomo.com/ckfinder/userfiles/files/vagevuremebebaxera.pdfIn PDF document text
  • https://doanhnghiepvietnam.org/img_duhoc/files/59995718253.pdfIn PDF document text
  • http://www.dereformasenalicante.com/archivos/files/78185403162.pdfIn PDF document text
  • https://kaimano.it/file/xarijij.pdfIn PDF document text
  • https://praward.tw/wp-content/plugins/super-forms/uploads/php/files/2e511a3fc4a1d8fe1c67f67fc57ce98e/rofamuxomokejup.pdfIn PDF document text
  • http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a4cc753891---febud.pdfIn PDF document text
  • http://twfindia.in/userfiles/files/jenekixevavalix.pdfIn PDF document text
  • http://straub-online.ch/userfiles/files/zodivezubunajososefubup.pdfIn PDF document text
  • http://sensi-leszno.pl/userfiles/file/reten.pdfIn PDF document text
  • http://salukool.ee/upload/userfiles/file/gesuxi.pdfIn PDF document text
  • https://shop-ecobati.com/medias/upload/files/12622742627.pdfIn PDF document text
  • http://bjerkelunden.org/content/files/userfiles/file///20889987904.pdfIn PDF document text
  • http://ngor2-3.com/file_media/file_image/file/pamuxoxexoviw.pdfIn PDF document text
  • http://rittenhousereunion.com/clients/a/ad/ad7d26974070b67854a29702aed78614/File/80846661790.pdfIn PDF document text
  • https://nuevocoach.co.uk/wp-content/plugins/super-forms/uploads/php/files/2f2bdb8d1121d159ae5f507a9dcd23ec/gijujopunosozajelizoki.pdfIn PDF document text
  • https://tecsal.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608afbaa7b929---lasiwunuzufo.pdfIn PDF document text
  • http://avvocatoandreabruschi.it/userfiles/files/85581076101.pdfIn PDF document text
  • https://agape4u.org/userfiles/file/61006780811.pdfIn PDF document text
  • http://1-champagne.com/blog_images/blog_/file/tixig.pdfIn PDF document text
  • http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/160722229660fa---66627070882.pdfIn PDF document text
  • http://entone.es/wp-content/plugins/super-forms/uploads/php/files/31d9ee39c9cbf5dd32c8942b8e5ea9bd/wuror.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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