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://ketchas.ru/uplcv?utm_term=ejemplos+de+fracciones+equivalentes+para+ni%C3%B1os+de+cuarto+grado PDF link annotation

  • http://xn--xhq021fvrwdth.com/d/files/funew.pdfIn PDF document text
  • https://djennebeads.com/nbloom/fckuploads/file/liwidikexorirejek.pdfIn PDF document text
  • http://www.stockholmswingallstars.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093a3d375e2e---68323505236.pdfIn PDF document text
  • https://hotnews.md/upload/userfiles/files/fobidejefuzijasiguvavo.pdfIn PDF document text
  • http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607759eb3bb94---gipaxufalukobepemakut.pdfIn PDF document text
  • https://kayakbranson.com/wp-content/plugins/formcraft/file-upload/server/content/files/160850b999e0b3---penunir.pdfIn PDF document text
  • https://www.waterlooarmsnewforest.co.uk/wp-content/plugins/super-forms/uploads/php/files/ed4bf16cb83d3565fe039faba8525d7a/jakasijumituwejed.pdfIn PDF document text
  • https://www.capitalroofingct.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a719694dda2---tovonejepu.pdfIn PDF document text
  • http://xn--h49al71atridzo.com/userData/board/file/59034214012.pdfIn PDF document text
  • http://lso-msm.fr/userfiles/file/56117601468.pdfIn PDF document text
  • https://aradovan.com/userfiles/file/19369745101.pdfIn PDF document text
  • https://amartzon.store/wp-content/plugins/super-forms/uploads/php/files/8de6b7f7ddb80ab98416918d335ac40f/xonuzazaxobuxuzokomup.pdfIn PDF document text
  • http://jirehenl.com/userfiles/file/171054249904.pdfIn PDF document text
  • http://cgl.lu/userfiles/files/bikubavavanu.pdfIn PDF document text
  • https://www.kiteschule-kiel.de/wp-content/plugins/formcraft/file-upload/server/content/files/16087d86e873c0---63873696675.pdfIn PDF document text
  • https://sharadsangam.org/UserFilesTwo/file/98747542749.pdfIn PDF document text
  • https://www.arc-welding.co.uk/wp-content/plugins/super-forms/uploads/php/files/0sqdb68mssidnvt6p59j42dkgb/sekuv.pdfIn PDF document text
  • http://remobudostol.pl/pliki/dirogu.pdfIn PDF document text
  • http://burchiellati.com/file_fck/file/tuvoki.pdfIn PDF document text
  • https://independentmusicleague.com/wp-content/plugins/super-forms/uploads/php/files/6e1e25fda395756b8337cec8c080a8e9/54938107879.pdfIn PDF document text
  • http://www.realisthotel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ee8a173b56a---69655531050.pdfIn PDF document text
  • http://aps-mes.com/files/file/wipus.pdfIn PDF document text
  • http://detskaoptika.cz/ckfinder/userfiles/files/17736106064.pdfIn PDF document text
  • https://mediacentre.aerlingus.com/js/ckfinder/userfiles/files/47155854216.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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