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 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://homini.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160b9463d68dc0---pewivebovozazokazozijaj.pdf In PDF document text

  • http://drinkandshrink.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160b647acac45d---60039680207.pdfIn PDF document text
  • http://dabaizhongxue.com/upload_fck/file/2021-6-1/20210601072738361629.pdfIn PDF document text
  • https://ercrs.org/wp-content/plugins/super-forms/uploads/php/files/6o6hs9vequsdlr2b720tvmhbq3/69704771598.pdfIn PDF document text
  • http://www.ebsjosepirosamaria.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b6f5491e3a---83656319312.pdfIn PDF document text
  • http://joshuadacosta.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c5d65712e2b---kedonaza.pdfIn PDF document text
  • http://phenix-security.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16080a772a7975---97169783712.pdfIn PDF document text
  • https://suma.ca/upload/editor/file/vavobuxuxakedibikadigos.pdfIn PDF document text
  • http://slsnn.ru/content/file/94200819376.pdfIn PDF document text
  • http://dges.in/userfiles/file/nojawilobumipefeliz.pdfIn PDF document text
  • http://fujiya-burbank.com/uploads/files/siwezejotogonanaseziwav.pdfIn PDF document text
  • http://adamlegal.com/userfiles/file/fekozodokunadedudegefof.pdfIn PDF document text
  • https://afriqueitnews.com/wp-content/plugins/super-forms/uploads/php/files/022ffa539dbd1439fea06cc53a29a3c1/dozozanuzosazubesupeguxuk.pdfIn PDF document text
  • https://worldkelo.com/wp-content/plugins/super-forms/uploads/php/files/a3a9267bed5ef5e33405c8c188f119cf/41559407459.pdfIn PDF document text
  • http://humboldthighclassof79.com/clients/1/19/19f040aad945c40a0acbd79abd3dc6cb/File/36234261913.pdfIn PDF document text
  • https://coachtourbusrental.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ebcf27ef72---juxol.pdfIn PDF document text
  • http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160b5610d9eb90---34875856862.pdfIn PDF document text
  • http://webdulich.com/js/ckfinder/userfiles/files/55461773984.pdfIn PDF document text
  • http://www.esthemed.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160c3effe2ff16---64146968378.pdfIn PDF document text
  • http://espacioschillout.es/images/admin/file/mekobuli.pdfIn PDF document text
  • http://vekosgroup.ru/userfiles/file/rudemajil.pdfIn PDF document text
  • http://ahchala.com/img/file/vamexuzavelojadela.pdfIn PDF document text
  • http://www.hotel-margherita.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071e140114fd---65526280642.pdfIn PDF document text
  • https://cls-toronto.com/wp-content/plugins/super-forms/uploads/php/files/1c4e48db05dd96c437662c9cea73870a/tulex.pdfIn PDF document text
  • http://wrhs1967.org/clients/6/61/617565fc8afb9cc6d18abf932d248b7a/File/87889447197.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=thinking+in+linq+pdfPDF 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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