Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• ClickFix social engineering attack high SE_CLICKFIX
  Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
• 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://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f961a5cd41---35438603623.pdf In PDF document text

  • https://www.ayersworthglen.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c6bc074a34a---1947662168.pdfIn PDF document text
  • http://amfmeg.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a4461697911---zisonikepedotopewojizudeg.pdfIn PDF document text
  • https://www.a2zmedical.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160922781617a5---63905048523.pdfIn PDF document text
  • http://plkorea77.com/ckupload/files/58786433899.pdfIn PDF document text
  • https://home18.ru/wp-content/plugins/super-forms/uploads/php/files/c821828f886da4cfadefd0779d292008/temijavinadigubazomave.pdfIn PDF document text
  • https://xn--80aanugxqi.xn--p1ai/admin/ckfinder/userfiles/files/lofuvene.pdfIn PDF document text
  • http://www.derbysignandgraphics.com/uploads/file/9451550979.pdfIn PDF document text
  • http://cctsjwhs.com/clients/0/08/08395bc9c2b8280888f0dabd04457394/File/99312712097.pdfIn PDF document text
  • https://space1500.com/wp-content/plugins/super-forms/uploads/php/files/0697c1505023cb8b2dc11542edf672a8/vireribopusofawovigiwosu.pdfIn PDF document text
  • https://www.indoorclub-informa.com/boletines/img/file/2312118942.pdfIn PDF document text
  • https://www.arphplumbing.co.uk/wp-content/plugins/super-forms/uploads/php/files/4j9igv807tevnb3142vdc37ka6/55328065552.pdfIn PDF document text
  • https://neoville.ru/wp-content/plugins/super-forms/uploads/php/files/fa6e8e968fb0ecfa8a24b29d32c6af82/58105471263.pdfIn PDF document text
  • https://churchosonline.com/wp-content/plugins/super-forms/uploads/php/files/84e247a728a7cbfdd9c07bb6dcd7fd4c/dijagemenimetaw.pdfIn PDF document text
  • http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077ed859853b---taril.pdfIn PDF document text
  • http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/16082a1633f1f4---58789058204.pdfIn PDF document text
  • http://zetrade.cz/userfiles/file/dexubalazilus.pdfIn PDF document text
  • https://kuechentreff-schmid.de/wp-content/plugins/super-forms/uploads/php/files/s31krh32q5c3vp7n919v6kq2eg/tolipitevakuvogagege.pdfIn PDF document text
  • http://elitaliaweb.it/upload/file/39135185567.pdfIn PDF document text
  • https://campermagazine.tv/public/file/xabuxivizefupi.pdfIn PDF document text
  • http://sk-uralstroy.ru/uploads/files/10815088308.pdfIn PDF document text
  • http://meteosputnik.ru/userfiles/file/mereze.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=how+to+clear+paper+jam+hp+officejet+4630PDF link annotation
  • 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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