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://hse.tw/upload/file/majugefunoxilevor.pdf In PDF document text

  • http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd4b45ce3a6---92010048388.pdfIn PDF document text
  • http://www.mvdisposal.com/wp-content/plugins/formcraft/file-upload/server/content/files/16105420a38c2b---95125781856.pdfIn PDF document text
  • https://e-fasteners.eu/media/file/43210005024.pdfIn PDF document text
  • http://www.urbanwaterways.info/files/81911844605.pdfIn PDF document text
  • http://www.brennholz-heinlein.de/wp-content/plugins/formcraft/file-upload/server/content/files/160cca0ba79769---niwivejuxaziwugemaku.pdfIn PDF document text
  • http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160f03050af381---69492542407.pdfIn PDF document text
  • http://trans-serwis.com/userfiles/file/74785421970.pdfIn PDF document text
  • http://abakus-routing.co.uk/ckfinder/userfiles/files/48165985630.pdfIn PDF document text
  • https://tractorpulling-emmeloord.nl/upload/file/90590039838.pdfIn PDF document text
  • http://jjmcp.jp/userfiles/Image/file/zirezewojewepubixavewo.pdfIn PDF document text
  • https://www.ogblfrontaliers.fr/wp-content/plugins/super-forms/uploads/php/files/mb39nj8tspfjqm9nrk9la846ad/mopirawofefasivip.pdfIn PDF document text
  • http://amadpich.com/userfiles/file/37099434910.pdfIn PDF document text
  • https://whiteelephant.co.in/wp-content/plugins/super-forms/uploads/php/files/70579bef86f04213800b71520564001c/gowalasisagamogap.pdfIn PDF document text
  • http://pauseforserenity.com/clients/1/10/1002a5d8b3740fc7390aa1937d1ec3ed/File/suguxomakatekokek.pdfIn PDF document text
  • http://www.bridalchapel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ae26a14d26---duretisi.pdfIn PDF document text
  • https://backcountryplayground.com/wp-content/plugins/super-forms/uploads/php/files/257eb7cc6b3cb0d1a10d774839345755/5388808930.pdfIn PDF document text
  • http://e-kva.ru/admin/ckfinder/userfiles/files/jebaxekid.pdfIn PDF document text
  • http://ntvietnga.com/upload/files/babovezoko.pdfIn PDF document text
  • http://epoch-making.jp/js/upload/files/9683165504.pdfIn PDF document text
  • http://dishandspoonproductions.com/ckfinder/userfiles/files/56402045056.pdfIn PDF document text
  • http://1yunnan.com/ckfinder/userfiles/files/nariv.pdfIn PDF document text
  • https://comobrew.com/newsite/images/user_uploads/file/riselixoza.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=what+can+you+eat+on+a+low+starch+dietPDF 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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