Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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://inwebjor.ru/uplcv?utm_term=unblock+friends+on+facebook+android PDF link annotation

  • http://protetyka-lublin.com/images/wyswig_images/file/tiratawesegisatowu.pdfIn PDF document text
  • http://tingchucontrol.com/Uploadfiles/files/80282571641.pdfIn PDF document text
  • http://koryosushi.com/uploads/files/bemodawewaxezonizi.pdfIn PDF document text
  • https://digireg.pl/upload/13791941166.pdfIn PDF document text
  • https://interno-kazan.ru/upload/files/17155797311.pdfIn PDF document text
  • https://cheeselicious.net/UserFiles/file/79255599202.pdfIn PDF document text
  • https://makenie.com/upload/files/tazufali.pdfIn PDF document text
  • http://aptwash.com/userData/ebizro_board/file/vijogutisan.pdfIn PDF document text
  • http://wakingbeauty.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135837130054---rolivitiguzigo.pdfIn PDF document text
  • https://kapokcmassage.com/uploads/files/202109191607408222.pdfIn PDF document text
  • https://ihotel2b.com/upfiles/editor/files/mewumepesofazuku.pdfIn PDF document text
  • http://aaexpansionjoint.com/wp-content/plugins/formcraft/file-upload/server/content/files/161438b1955529---59978595126.pdfIn PDF document text
  • https://ddriu.hu/wp-content/plugins/super-forms/uploads/php/files/a7f11368d21389e88c572dcfa65845eb/vupowiruvafonaba.pdfIn PDF document text
  • https://iuoshili.com/upload/users/files/vikejo.pdfIn PDF document text
  • https://www.bouldersudbury.org/wp-content/plugins/formcraft/file-upload/server/content/files/16135a5ea2b50b---35010151246.pdfIn PDF document text
  • http://richardchong.com/userfiles/files/bobusowat.pdfIn PDF document text
  • https://jmclimatizacionhvac.cl/images/subidas/file/tasanerasonawox.pdfIn PDF document text
  • http://gernano.eu/gfx/userfiles/files/nakozedojazumumutov.pdfIn PDF document text
  • http://robvancampen.nl/userfiles/file/xizavaxubaxixukufadela.pdfIn PDF document text
  • http://gruaszarate.com/ckfinder/userfiles/files/53388822312.pdfIn PDF document text
  • http://tumwebthailand.com/ckfinder/userfiles/files/70788458374.pdfIn PDF document text
  • http://abwingstop.com/uploads/files/tafozo.pdfIn PDF document text
  • http://www.ramseier-appenzell.ch/elrada/js/ckfinder/userfiles/files/63887035640.pdfIn PDF document text
  • https://argumentua.com/i/file/40732054368.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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