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://chcial.ru/uplcv?utm_term=best+measure+of+center PDF link annotation

  • https://dmddsgn.com/wp-content/plugins/super-forms/uploads/php/files/c7be57a9011dbe009b59776066e47c78/62458131843.pdfIn PDF document text
  • http://tucholainfo.pl/userfiles/file/18245548193.pdfIn PDF document text
  • http://hwayinn.com/image/files/20210626_062206.pdfIn PDF document text
  • http://www.pilonidalsinus.gen.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1607bcefad36ab---mulepifetakematakumijofiz.pdfIn PDF document text
  • https://techielingo.com/fck_uploads/files/39650726387.pdfIn PDF document text
  • https://frennphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c473307204---32950138220.pdfIn PDF document text
  • http://elmiraclassiccountry.com/wp-content/plugins/super-forms/uploads/php/files/d984qqs84d84a48ajcn5ao27j6/panosapixazuvevavekeka.pdfIn PDF document text
  • https://thaiwoodengames.com/files/upload/files/18734678711.pdfIn PDF document text
  • https://termoformat.md/img/files/divojakavewuk.pdfIn PDF document text
  • https://baconbites.com/wp-content/plugins/super-forms/uploads/php/files/njncqtusvgqtbqrt050supoc85/87844631978.pdfIn PDF document text
  • http://amandatour.ru/js/ckfinder/userfiles/files/35575374543.pdfIn PDF document text
  • http://anhuishangbiao.com/upload_fck/file/2021-4-29/20210429160827616942.pdfIn PDF document text
  • http://andrenickels.de/ckfinder/userfiles/files/weduxubimuwi.pdfIn PDF document text
  • https://manuscripthandler.com/userfiles/file/64946361398.pdfIn PDF document text
  • http://myucpb.net/userfiles/file/8728120291.pdfIn PDF document text
  • https://orangcar.com/app/webroot/upload/files/gutowawuwoda.pdfIn PDF document text
  • https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/16107be1292075.pdfIn PDF document text
  • http://volamtuyetthe.com/userfiles/file/baxopu.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fb3d79bfa4---vibasanuloravera.pdfIn PDF document text
  • https://edcasys.com/ci/userfiles/files/81440387338.pdfIn PDF document text
  • https://yennenga.org/business_school/uploads/file/73107730330.pdfIn PDF document text
  • http://www.rlktechniek.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1610b5b474c5f4---puwogusolamena.pdfIn PDF document text
  • http://akbarestate.com/survey/userfiles/files/9552896650.pdfIn PDF document text
  • http://totalfinance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160826e7f881a8---gijesexo.pdfIn PDF document text
  • http://www.mezmat.ru/ckfinder/userfiles/files/bavemefurutilase.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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