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://cructi.ru/uplcv?utm_term=4+digit+addition+worksheets+without+regrouping PDF link annotation

  • http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160888956ce87b---nujopa.pdfIn PDF document text
  • http://bajcsidavidfoto.com/_user/file/23596595666.pdfIn PDF document text
  • http://chizclean.ru/files/fck/file/verasifawiguduraforiz.pdfIn PDF document text
  • http://dlastudenta.org/Upload/file/53292696569.pdfIn PDF document text
  • https://alcoolassistance-creuse.net/www/site/js/ckfinder/userfiles/files/47202879880.pdfIn PDF document text
  • https://eghamatkade.com/basefile/eghamatkadecom/files/dowajilejukotukutanunog.pdfIn PDF document text
  • http://bishnutoursandtravels.in/userfiles/file/22824385957.pdfIn PDF document text
  • http://witnesstherealist.com/wp-content/plugins/super-forms/uploads/php/files/0c3618b460ef81ef5fdeb43fa4ece49d/67775298594.pdfIn PDF document text
  • https://nitm.ac.in/nitmeghalaya/ckfinder/userfiles/files/78898981154.pdfIn PDF document text
  • https://karpataljaturizmus.hu/upload/20644601933.pdfIn PDF document text
  • http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a10d0e55ba---94549100973.pdfIn PDF document text
  • http://omniatel.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607e6c404a8ad---76582693837.pdfIn PDF document text
  • https://premiumvipbusiness.com/wp-content/plugins/super-forms/uploads/php/files/72dfdf91d7ac12ac4506e9c2cd17ffc5/79961921691.pdfIn PDF document text
  • https://hmv.ir/wp-content/plugins/formcraft/file-upload/server/content/files/160c396841d168---81142455111.pdfIn PDF document text
  • https://securitydm.rs/slicice/file/686463016.pdfIn PDF document text
  • http://xn--90aoaidn.xn--p1ai/ckfinder/userfiles/files/kirelavikina.pdfIn PDF document text
  • https://www.karenlovelee.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb65d32a5c9---vigubemedumi.pdfIn PDF document text
  • https://gobelsprofil.com/upload/files/galim.pdfIn PDF document text
  • http://beverly.kopanramen.com/uploads/files/28959716951.pdfIn PDF document text
  • http://gvs-russia.ru/admin/ckfinder/userfiles/files/41836903615.pdfIn PDF document text
  • http://thehawthornnyc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b5de381ff5---goberigako.pdfIn PDF document text
  • http://dansungsala.com/uploads/files/litabagunikazomunovogebi.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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