Malicious PDF — malware analysis report

Heuristics 6

• 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://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609316ab9b48b---wisizobepuw.pdf In PDF document text

  • https://anfauglir.com/images/file/3454840778.pdfIn PDF document text
  • http://birons.net/wp-content/plugins/super-forms/uploads/php/files/766bcee4c3c990c17ae71fc41dacf00d/78651291486.pdfIn PDF document text
  • https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/161032322e58b9---vexokudibufugovixenediwag.pdfIn PDF document text
  • http://embeddedhr.com/ckfinder/userfiles/files/kupitoreju.pdfIn PDF document text
  • http://designerhouse.ru/upload/files/sikonezisafimugafiripanu.pdfIn PDF document text
  • https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cc41ba70d68---rugasipufumekamuf.pdfIn PDF document text
  • https://refundsrefunds.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f2f4daa92da---12532317522.pdfIn PDF document text
  • http://morard-mcf.fr/data/Files/78757350936.pdfIn PDF document text
  • http://iideree.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606effa90f3a9---nipimepezopovozasawip.pdfIn PDF document text
  • https://eyestech.in/wp-content/plugins/super-forms/uploads/php/files/05srehegdjtjvsat0dci3k24u8/95754355776.pdfIn PDF document text
  • http://www.viksexteriors.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc95d256fe---89233977374.pdfIn PDF document text
  • http://bisenzia.it/userfiles/files/74913941050.pdfIn PDF document text
  • https://www.zulilighting.com/wp-content/plugins/super-forms/uploads/php/files/694a29455bc2865fedb2013b0158230a/guwigobaxapukadugori.pdfIn PDF document text
  • https://phase1acoustics.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d51f45821f---niramuvalaf.pdfIn PDF document text
  • http://galgalesh.com/userfiles/file/fitidil.pdfIn PDF document text
  • http://asdgolfclubtoscana.com/writable/public/userfiles/file/buginejim.pdfIn PDF document text
  • https://tranthachcaodanang.com/uploads/image/files/lirogipov.pdfIn PDF document text
  • http://profisystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1606f00d217332---87961047690.pdfIn PDF document text
  • https://nibrasimansch.com/userfiles/files/mobenalubevubowajajoluwe.pdfIn PDF document text
  • http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/293595aa1c3053f86801a59919ec5615/57912902639.pdfIn PDF document text
  • http://caacoding.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607f730594aec---fuxuxisojoginiv.pdfIn PDF document text
  • https://pasarangroup1.com/contents//files/kupigafewakivupupe.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/1mam9fcfhmae1caclqg4g3p625/47757737549.pdfIn PDF document text
  • http://apcmagon.com/userfiles/44572515533.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=how+to+reduce+pdf+file+size+in+adobe+indesignPDF 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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