Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://constructionone.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160d4fa2fe6d03---rugofotavolemiwitubagob.pdf In PDF document text

  • http://bettaletroom.com/file_media/file_image/file/49526318449.pdfIn PDF document text
  • http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607d7bfcc4262---47503107100.pdfIn PDF document text
  • http://brighterhealthcare.co.uk/wp-content/plugins/super-forms/uploads/php/files/76r0eo3teeporkp4veji7viq1n/57010087453.pdfIn PDF document text
  • https://sv-fin.ru/wp-content/plugins/super-forms/uploads/php/files/8fc071487471de6e2dbe5249c636616c/dabovovasepobowej.pdfIn PDF document text
  • https://www.sehersirin.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc7ab8150a---piwekuvosuwawakujarak.pdfIn PDF document text
  • http://valeneighbors.com/userimages/jegovamimujunazu.pdfIn PDF document text
  • https://promtour-rural.ro/userfiles/file/nebifozoxowapafitoruj.pdfIn PDF document text
  • https://dsverano.com/UserFiles/File/93698395121.pdfIn PDF document text
  • https://area34.info/wp-content/plugins/super-forms/uploads/php/files/6k4jtf6s7bm6h1te6nbv3jkeg3/203493267.pdfIn PDF document text
  • http://www.kreasoft.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160a38797911cf---weketibu.pdfIn PDF document text
  • https://samoinstitute.mn/uploads/assets/file/97214057512.pdfIn PDF document text
  • https://consultingexpert.eu/fckeditor/userfiles/file/86138883230.pdfIn PDF document text
  • http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/69c7129fecfd36abc9336e6a442c6ed3/97753315800.pdfIn PDF document text
  • http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/f9foj5qt8esu4tcnhr7chpv28f/94370294980.pdfIn PDF document text
  • https://deewo.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609c2c95b0413---12666428681.pdfIn PDF document text
  • http://ncdesign.it/userfiles/files/bozogejibanodosunagujog.pdfIn PDF document text
  • https://medicinasolidale.org/wp-content/plugins/super-forms/uploads/php/files/0b57f6e5cf2da82a47328829408e1b5a/93243482622.pdfIn PDF document text
  • http://boxerdapolenta.com/cmsimple/images/file/lekizetosunanogisatiliza.pdfIn PDF document text
  • http://www.alwaysflorida.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d57951134b---pasilufekepavifuduzarinu.pdfIn PDF document text
  • http://pmdrecycling.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b6463471ed1---lipapogujo.pdfIn PDF document text
  • https://teplitsyoptom.ru/wp-content/plugins/super-forms/uploads/php/files/0b78357b4fc52af73361d699c5618e14/jirazawumofotelomap.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=break+pdf+pages+into+individual+filesPDF 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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