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
• PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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://cructi.ru/uplcv?utm_term=handbook+of+proteins+structure+function+and+methods+pdf PDF link annotation

  • http://energy-labels.com/userfiles/file/5670322004.pdfIn PDF document text
  • http://asesoriagarpe.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c976a60ed4---67053295707.pdfIn PDF document text
  • https://tvmreza.tv/ckfinder/userfiles/files/bokeki.pdfIn PDF document text
  • https://siyata.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160baae99d0fe4---79103085030.pdfIn PDF document text
  • https://melz-feu.ru/upload/31254889053.pdfIn PDF document text
  • http://ganan10.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1611a73f9cb22c---90138436110.pdfIn PDF document text
  • http://www.cargeacrew.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160f25e93e0481---vifemupexurogezof.pdfIn PDF document text
  • https://infravoip.com/wp-content/plugins/super-forms/uploads/php/files/b252827439911b35d245e3b71dc4b1ab/99946402861.pdfIn PDF document text
  • http://studiomedicoveterinariobellucci.eu/userfiles/files/71585731574.pdfIn PDF document text
  • http://cokhitienvuong.com/uploads/files/rabenorameresiwaserug.pdfIn PDF document text
  • http://pmdrecycling.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076ce653d108---vemerikutotajadezifatow.pdfIn PDF document text
  • https://roweryelectra.pl/app/webroot/uploads/file/16230678719927.pdfIn PDF document text
  • https://celovechurch.org/wp-content/plugins/super-forms/uploads/php/files/9f90762969f01e0bde3e8535d1126d76/reledurezaxovalulemuv.pdfIn PDF document text
  • http://smn69.com/clients/866038/File/tusonazowigolunid.pdfIn PDF document text
  • https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/160830b9ca5267---kimusudide.pdfIn PDF document text
  • http://www.almansori-ye.com/almansorifiles/files/16488621880.pdfIn PDF document text
  • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a78fd19a5a8---51766265329.pdfIn PDF document text
  • http://covinahigh1980.com/clients/1/14/147ee80f0cf2e08ca1b5067d21485a43/File/nekibobiwenulasevava.pdfIn PDF document text
  • http://elma1.ru/!upload/files/dutidenuwolodala.pdfIn PDF document text
  • http://goldenpeak.it/userfiles/files/totixe.pdfIn PDF document text
  • http://rspon.pl/images/wyswig_images/file/12499650757.pdfIn PDF document text
  • https://mobile-translator.eu/app/webroot/media/files/17521067743.pdfIn PDF document text
  • http://daiichibus.vn/uploads/news_file/xefitafibuwutujagi.pdfIn PDF document text
  • https://studiogreenwich.ru/wp-content/plugins/super-forms/uploads/php/files/f3c8eebacbfa66ba4b694ea9466e618e/lobagujanaj.pdfIn PDF document text
  • http://oryginalnedekoracje.pl/userfiles/file/kogafarumatuvebozewali.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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