Malicious PDF — malware analysis report

Heuristics 8

• 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
• Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
  A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
• 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://queure.ru/uplcv?utm_term=how+to+cast+mobile+to+chromecast PDF link annotation

  • http://stilna-ya.com/_userfiles/file/nuwakapurutujenuxuj.pdfIn PDF document text
  • https://szpital-sulecin.pl/images/fckfiles/file/fatijop.pdfIn PDF document text
  • https://afgventuregroup.com/cfiles/file/86663432160.pdfIn PDF document text
  • http://www.bewegeninarnhem.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16137853cc816b---68553142407.pdfIn PDF document text
  • http://abwlargo.com/uploads/files/85896596403.pdfIn PDF document text
  • http://szintai.hu/ckfinder/userfiles/files/71152109666.pdfIn PDF document text
  • http://bacsionline.net/userfiles/file/garodukokawevinu.pdfIn PDF document text
  • http://lecostationery.com/files/file/49511664607.pdfIn PDF document text
  • http://perles-del-beya.com/userfiles/file/65381065755.pdfIn PDF document text
  • http://arqing.es/ckfinder/userfiles/files/jagejowoviwuwabomexefa.pdfIn PDF document text
  • https://dolmalatrek.com/userfiles/file/fomup.pdfIn PDF document text
  • http://massimobertoarchitetto.com/userfiles/files/tasorutijosegaziz.pdfIn PDF document text
  • https://pecintajp.com/contents/files/jowugazirigodo.pdfIn PDF document text
  • http://kamakuralosgatos.com/uploads/files/67093883136.pdfIn PDF document text
  • https://brothers-music.com/ckfinder/userfiles/files/jasig.pdfIn PDF document text
  • http://andlupa.com/userfiles/file/98706166293.pdfIn PDF document text
  • https://vmwarts.com/ecovic/file/195727531.pdfIn PDF document text
  • https://sellos-mecanicos.com/wp-content/plugins/super-forms/uploads/php/files/22658258db1b548275f15bfe21a09682/nugatakuvufifibemuvedalu.pdfIn PDF document text
  • http://ekbdrive.ru/ckfinder/userfiles/files/5180599461.pdfIn PDF document text
  • https://gauravkankariya.com/wp-content/plugins/super-forms/uploads/php/files/211a5d5d742540da7478101e6f64e1ba/71836451297.pdfIn PDF document text
  • https://epponline.com/mentorfinancial/page_images/file/73927676363.pdfIn PDF document text
  • http://hoilhpnqbthanh.com/upload/file/2154302746.pdfIn PDF document text
  • http://iviltra.lt/images/files/11565674147.pdfIn PDF document text
  • https://photographerin.agency/wp-content/plugins/super-forms/uploads/php/files/pskbpnqk19vb8b4kbat18mje13/kowujewubawunifomepiv.pdfIn PDF document text
  • https://efficimm.fr/userfiles/files/70363032378.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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