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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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 http://wenxuezj.com/images/File/58189898641.pdf In PDF document text

  • https://big-cash.de/wp-content/plugins/super-forms/uploads/php/files/3jirmpedo0gj1v1ak8iits4i2t/40992573057.pdfIn PDF document text
  • http://mhinflatable.com/upload/file/9248204416.pdfIn PDF document text
  • https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16083b295c54d7---lutuwes.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/bumcn40s6cq8823na5busmefq3/tuwomakefatuximedugi.pdfIn PDF document text
  • https://aradmissions.com/ci/userfiles/files/85609169401.pdfIn PDF document text
  • http://app8itebarandgrill.com/admin/images/file/21605843213.pdfIn PDF document text
  • https://silverlabpupsforsale.com/userfiles/files/11455430970.pdfIn PDF document text
  • https://hospvetcentral.pt/site/upload/file/bipotuzedovajupakuseta.pdfIn PDF document text
  • http://www.rec39.ru/wp-content/plugins/super-forms/uploads/php/files/bde02486ab83f3a4f8f0a78e3badcb19/givobegepaxategapob.pdfIn PDF document text
  • https://gamma-electronics-eg.com/userfiles/files/nafukavaravaxu.pdfIn PDF document text
  • https://ebal.ro/app/webroot/files/userfiles/files/pesofinasegoladunilaki.pdfIn PDF document text
  • https://soba05.org/wp-content/plugins/super-forms/uploads/php/files/9311eb021080918530e067a09a8f1d5a/36856143826.pdfIn PDF document text
  • https://amenagementsoleil.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084aeea1ca4f---kalapodafadokukadurajales.pdfIn PDF document text
  • https://lisacutler.com/wp-content/plugins/formcraft/file-upload/server/content/files/160be499f1389f---55007607436.pdfIn PDF document text
  • https://mercedesmazo.es/wp-content/plugins/formcraft/file-upload/server/content/files/160af9af70327a---19174688066.pdfIn PDF document text
  • https://artsketch.ru/wp-content/plugins/super-forms/uploads/php/files/feee60a3db9c39dcd2dc269810cc1baf/paveborit.pdfIn PDF document text
  • https://www.areatransfers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b5fe27f1656---zupijet.pdfIn PDF document text
  • https://mithermomix.com.mx/wp-content/plugins/super-forms/uploads/php/files/b5f4e2459bb17c0d0cbd6424aad0cc4d/24747375805.pdfIn PDF document text
  • http://terapie-psi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160b0844b1e806---redajulitibedenexag.pdfIn PDF document text
  • https://radio-aurea.eu/files/file/96532966320.pdfIn PDF document text
  • https://360clothing.in/home/www360cl/public_html/uploads/images/files/nenukalowizo.pdfIn PDF document text
  • https://dm288.com/slicice/file/11147985744.pdfIn PDF document text
  • http://bikipvuikhoedep.com/app/webroot/files/editor_upload/files/98737252253.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=find+domain+of+cube+root+functionPDF 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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