Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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://xn--80aggmy8c6c.net/UserFiles/File/kebixuk.pdf In PDF document text

  • http://otevrel.eu/ckfinder/userfiles/files/33756259842.pdfIn PDF document text
  • http://casaatlantida.com/userfiles/file///28267487085.pdfIn PDF document text
  • http://espressobuilders.com/app/webroot/files/userfiles/files/85225318639.pdfIn PDF document text
  • https://skiclubraonbaccarat.fr/pdf/34530445845.pdfIn PDF document text
  • http://eurogeographyjournal.eu/admin/fckfiles/file/wasugil.pdfIn PDF document text
  • http://mopi.eu/ckfinder/userfiles/files/memivovelo.pdfIn PDF document text
  • https://sieuthimaytinhcu.vn/upload/files/rejiwepirutesosegilowosi.pdfIn PDF document text
  • http://zl369.net/userfiles/file/76457198939.pdfIn PDF document text
  • http://aedjtjdshbf.pretty-match.com/upload/files/26089786986.pdfIn PDF document text
  • http://cayxaotamphan.net/userfiles/image/file/18142878613.pdfIn PDF document text
  • http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/pnutf4pfotn7l8c6fqpslcr2h4/lazigufa.pdfIn PDF document text
  • http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/q16cg64ti8isslqtl6sh3b0st4/87389062388.pdfIn PDF document text
  • http://podwierzba.eu/ckfinder/userfiles/files/pevases.pdfIn PDF document text
  • http://longchimvac.net/app/webroot/uploads/files/romevomuvumurig.pdfIn PDF document text
  • http://dintainoodle.com/uploads/files/75359874571.pdfIn PDF document text
  • https://hongmao.tw/uploads/files/202109061944238565.pdfIn PDF document text
  • https://www.prieur-equipement.com/ckfinder/userfiles/files/92716931860.pdfIn PDF document text
  • http://www.dr.schure.net/ckfinder/userfiles/files/93816705775.pdfIn PDF document text
  • http://www.investinwielkopolska.pl/application/lib/ckfinder/userfiles/files/80715452807.pdfIn PDF document text
  • http://playeasypiano.com/resources/fck_images/bigipopivopilaluzi.pdfIn PDF document text
  • https://oilbasaro.com/web/images/ckfinder/files/20210910062032.pdfIn PDF document text
  • http://admio.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1613da81411e4e---pedas.pdfIn PDF document text
  • http://personnelstrategies.net/userfiles/file/gamuzararajokekejopexilex.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=how+to+get+rid+of+system+update+notification+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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