Malicious PDF — malware analysis report

Heuristics 6

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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.
• 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://infrive.ru/uplcv?utm_term=narratology+introduction+to+the+theory+of+narrative+pdf PDF link annotation

  • https://www.rogierstoel.nl/wp-content/plugins/super-forms/uploads/php/files/c2a28h5b7eq49uq07j29nubuau/basogavavur.pdfIn PDF document text
  • https://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/160be7c4735ebc---41155776441.pdfIn PDF document text
  • https://www.allterra.group/wp-content/plugins/super-forms/uploads/php/files/bb71bc8429e70e3e896d6b61cd5a7899/lorajedaworutokemos.pdfIn PDF document text
  • https://www.isgs.org/wp-content/plugins/super-forms/uploads/php/files/cdcb8a09bdd6cdd2ca970019ceb7e561/kuwuvadevutowexidis.pdfIn PDF document text
  • http://istihdamhaberleri.com/upload/ckfinder/files/13259576155.pdfIn PDF document text
  • http://erbilsunhotel.com/wp-content/plugins/super-forms/uploads/php/files/1n3vtpe19cubmrdqu3robcche3/21176449147.pdfIn PDF document text
  • https://satyawatioverseas.com/userfiles/file/87848666448.pdfIn PDF document text
  • https://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16111947121d65---katete.pdfIn PDF document text
  • http://moveisgarciadigital.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a34c9b6cc1b---21746507184.pdfIn PDF document text
  • http://isagenixmakessense.com/ckfinder/userfiles/files/nuwexijar.pdfIn PDF document text
  • http://redeyeldn.com/userfiles/file/xogivaranorufebamubufal.pdfIn PDF document text
  • http://bloomx.com/sites/all/sites/bloomx.com/files/23793619072.pdfIn PDF document text
  • http://terrietanaka.com/library/files/guvewabekokiterapuga.pdfIn PDF document text
  • https://theemperorsoldclothes.co.uk/wp-content/plugins/super-forms/uploads/php/files/mj6tr9nln9spkfk8aggj9m8plv/41244094097.pdfIn PDF document text
  • http://zkojicin.cz/userfiles/file/74799632468.pdfIn PDF document text
  • https://www.rekalibracija.com/wp-content/plugins/super-forms/uploads/php/files/0def31814d4bbbbc6070e589efa93ac8/kitepuzudezekatepegokew.pdfIn PDF document text
  • http://colorfusion.us/admin/images/file/12509864940.pdfIn PDF document text
  • https://thuanxuongmonmb.com/admin/webroot/upload/image/files/35113930148.pdfIn PDF document text
  • http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd4b45ce3a6---92010048388.pdfIn PDF document text
  • http://centroolosprato.it/userfiles/files/bizaxetidamaremamax.pdfIn PDF document text
  • http://hongdanhaudio.com/luutru/files/51388357852.pdfIn PDF document text
  • http://vickerycarpet.com/uploads/images//files/42071920425.pdfIn PDF document text
  • http://www.dnevi-sekretarjev.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1609090f804208---97345804152.pdfIn PDF document text
  • https://gretajensen.com/ckfinder/userfiles/files/fufigisekuzesedusam.pdfIn PDF document text
  • https://silga.ca/userfiles/file/82336383357.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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