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://crysiq.ru/uplcv?utm_term=manufacturing+engineering+and+technology+kalpakjian+schmid+pdf PDF link annotation

  • https://xn--1--8kcai1ck2bs.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/bc138c4bbdfdccb610d59bebfc4f9af9/74205205971.pdfIn PDF document text
  • http://www.thebetterinsurance.com/wp-content/plugins/formcraft/file-upload/server/content/files/161163d1f8e08c---bavaromegubu.pdfIn PDF document text
  • http://thegreenlegacykeepers.com/clients/e/e8/e8dc17949b7ef813e9937e453902477f/File/mesutew.pdfIn PDF document text
  • https://zlataraburmevuckovic.com//files/89177467575.pdfIn PDF document text
  • https://movimientofamiliadejesus.com/images/uploaded/file/98024149341.pdfIn PDF document text
  • http://studiotrusso.it/userfiles/files/pesumufelarukazovebarez.pdfIn PDF document text
  • http://www.advokat.com/app/webroot/img/fck/file/491943631.pdfIn PDF document text
  • https://refour.dk/wp-content/plugins/super-forms/uploads/php/files/8f4ff7ffe22cbfcdb842230129dd9453/dozizomaja.pdfIn PDF document text
  • http://akinmedikal.com/uploads/file/22551208553.pdfIn PDF document text
  • http://codemessaging.net/ckfinder/userfiles/files/78480701207.pdfIn PDF document text
  • https://zazilha.com.mx/wp-content/plugins/super-forms/uploads/php/files/1ee735e72354572dee5bc629a6bb7dba/tinajukovuzipe.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ffff288fcc---pegameruwi.pdfIn PDF document text
  • http://gtlmarinefuel.com/userfiles/file/88410732444.pdfIn PDF document text
  • http://amfmeg.org/wp-content/plugins/formcraft/file-upload/server/content/files/160abd0f118ef3---pajawujofodozebananek.pdfIn PDF document text
  • http://ylgems.com/file_media/file_image/file/zikaz.pdfIn PDF document text
  • http://occahomesearch.com/userfiles/files/xowadubuvebugaxufulavodix.pdfIn PDF document text
  • http://engroupe.ca/aym_image/files/85668260669.pdfIn PDF document text
  • https://www.sharpeningfactory.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072c297254c0---mubiba.pdfIn PDF document text
  • http://baohanhranghm.com/upload/img/files/xikorunefon.pdfIn PDF document text
  • https://allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/a163ae512acf58df5ac7d877881a6763/garuratilex.pdfIn PDF document text
  • https://www.temsilcisitesi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079c5d9b664a---35584363516.pdfIn PDF document text
  • https://www.alitec.es/js/ckfinder/userfiles/files/56456032855.pdfIn PDF document text
  • http://msamerica.net/clients/873634/File/pakajolu.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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