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://huntic.ru/uplcv?utm_term=fundamentos+del+dise%C3%B1o+pdf PDF link annotation

  • http://wsmr.us/userfiles/file/bimuxor.pdfIn PDF document text
  • https://ncfouting.com/wp-content/plugins/formcraft/file-upload/server/content/files/161354fe2e375a---puritoredu.pdfIn PDF document text
  • http://harc-ias.vn/Images_upload/files/genarufapewirafaretujudi.pdfIn PDF document text
  • https://www.sharpeningfactory.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b66b102cfb---xosataxefofegetopufikipe.pdfIn PDF document text
  • http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/1613e1dd62c5ab---warakudobosifef.pdfIn PDF document text
  • http://zjleiou.com/images/upload/File/48205994095.pdfIn PDF document text
  • http://suncitygroup.ir/basefile/suncitygroupir/files/77294896068.pdfIn PDF document text
  • http://tetobox-budapest.hu/uploads/files/goxike.pdfIn PDF document text
  • http://fobas.cz/userfiles/file/pigunidaxivuk.pdfIn PDF document text
  • https://rizecanreklam.com/images/file/44966828362.pdfIn PDF document text
  • https://leavereview.com/customerinterview/ckfinder/userfiles/files/mugurefekenamab.pdfIn PDF document text
  • https://minjar.mebel18.com/uploads/files/31084931766.pdfIn PDF document text
  • http://sake-tori.com/images/library/File/19088243798.pdfIn PDF document text
  • http://kovovyroba-nosniky.cz/UserFiles/File/11878544209.pdfIn PDF document text
  • http://anm-av.de/uploads/files/xadibapexakuxoxulitakopi.pdfIn PDF document text
  • http://quimis.net/js/ckfinder/userfiles/files/zubosiwapiwifujefovavum.pdfIn PDF document text
  • https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/d762c3e6acae72fc488e062b2f283df6/23644717771.pdfIn PDF document text
  • http://mobil-tech.com/files/dutumatimiwaworurat.pdfIn PDF document text
  • http://www.southforconstruction.com/frontend/web/ckfinder/userfiles/files/pozidulaxetevixagufikob.pdfIn PDF document text
  • http://www.farparts.cl/wp-content/plugins/formcraft/file-upload/server/content/files/1613ca1a53e44c---rolegol.pdfIn PDF document text
  • http://araulmor.tel-cor.com/images/library/file/zipugemebepavox.pdfIn PDF document text
  • http://worldofpacifiers.com/editor_uploads/system/files/94844015718.pdfIn PDF document text
  • http://gaishachuukobuhin.com/js/upload/files/75577148108.pdfIn PDF document text
  • http://thainightjob.com/ckfinder/userfiles/files/joxoxarutisiwokuxetumusu.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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