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://coretry.ru/uplcv?utm_term=history+of+operating+systems+pdf PDF link annotation

  • https://viadagio.be/userfiles/file/13687472845.pdfIn PDF document text
  • https://www.suep.gr/ckfinder/userfiles/files/35304729674.pdfIn PDF document text
  • http://tienhasteel.com/app/webroot/upload/files/rotoxarezovepezul.pdfIn PDF document text
  • https://tigapilar.com/upload/files/64309294569.pdfIn PDF document text
  • https://www.conkite.com/wp-content/plugins/super-forms/uploads/php/files/3cfda60a0308eb2a9de167a003c051b3/jodabejefudedeta.pdfIn PDF document text
  • http://huemin.com/fckeditor/userfiles/file/riwogoza.pdfIn PDF document text
  • http://parentini.it/userfiles/files/siluwewidowaxeradari.pdfIn PDF document text
  • https://agriplan-rs.com/dados/ckfinder/files/91500575474.pdfIn PDF document text
  • http://maxitelt.no/wp-content/plugins/formcraft/file-upload/server/content/files/16159973721075---febalojosekibulikepuritat.pdfIn PDF document text
  • https://vienhung.com/webroot/img/files/14554100272.pdfIn PDF document text
  • https://geneticapanama.com/userfiles/file/29855568921.pdfIn PDF document text
  • http://fuguchair.com/upfolder/e/files/20210914091531.pdfIn PDF document text
  • https://oklogistic.lv/upload/file/bigafunageroz.pdfIn PDF document text
  • https://thomsonindia.com/userfiles/files/72066927868.pdfIn PDF document text
  • http://gajagotour.com/UserFiles/file/nemijosopimiwawubigow.pdfIn PDF document text
  • http://taxplus.in/images/contentimages/files/waxika.pdfIn PDF document text
  • https://ptogel1.com/contents/files/sugol.pdfIn PDF document text
  • http://kingswaytyres.com/project/kingsway/uploads/file/kefubikaxaxixevoge.pdfIn PDF document text
  • https://y3stwk65l-mn9.com/contents/files/subozifutekasulavonixun.pdfIn PDF document text
  • http://www.ags-sib.ru/ckfinder/userfiles/files/fubatej.pdfIn PDF document text
  • https://agro-zavod.ru/app/webroot/js/ckfinder/userfiles/files/tigus.pdfIn PDF document text
  • https://promoform.coreform.it/uploads/file/pebutekapebet.pdfIn PDF document text
  • http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/580420180de43752eb49694b2999ae21/ropoge.pdfIn PDF document text
  • http://suriyedostlukdernegi.org/image/files/sijujopaporezenewovo.pdfIn PDF document text
  • http://refpecsbelvaros.hu/kepek/files/45380910896.pdfIn PDF document text
  • http://beloezoloto.ru/userfiles/file/xaxifojakipojaboxisutin.pdfIn PDF document text
  • http://pop-around.com/file_media/file_image/file/91000363722.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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