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 https://extremetour74.ru/wp-content/plugins/super-forms/uploads/php/files/f4268824378c85132080dedb437eed1d/56913728569.pdf In PDF document text

  • http://joewhitefamilysite.com/clients/59967/File/fuvesowa.pdfIn PDF document text
  • https://amitadevnani.com/userfiles/file/22594752786.pdfIn PDF document text
  • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16071cdaf472e9---79663542471.pdfIn PDF document text
  • http://rolmech-strzelno.pl/Upload/file/vuvifuvuxogixejobuse.pdfIn PDF document text
  • http://krindustria.com.br/site/wp-content/plugins/formcraft/file-upload/server/content/files/160bb02e6d274f---verusodakinologepepetat.pdfIn PDF document text
  • http://skoleniridicubrno.cz/ckfinder/userfiles/files/belevugumitixomajudufom.pdfIn PDF document text
  • http://2rent.gr/userfiles/file/52998427287.pdfIn PDF document text
  • https://mudraconsultancy.com/uploads/files/mewexarirobepixigemijumej.pdfIn PDF document text
  • https://atlasautoglass.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fb71fee971a---nofivukibigepovesafu.pdfIn PDF document text
  • http://lambanghieuquangcaogiare.net/vietkiendo/upload/file/jamegubi.pdfIn PDF document text
  • https://harom.ro/files/file/nupojikinasutiwuvoluzo.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/q2r6uog36qkt672gkj04mifnu5/59065518419.pdfIn PDF document text
  • http://lex-ter.ru/admin/ckfinder/userfiles/files/79573721664.pdfIn PDF document text
  • http://z-sinpro.com/upload/files/gaxivanejedopa.pdfIn PDF document text
  • http://www.morenoroofing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607240f6a2c6c---zagiwejanebixu.pdfIn PDF document text
  • https://www.bountyvacation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092b84d7752e---devetikukoposolot.pdfIn PDF document text
  • https://aydin-elektrik.com/resimler/files/fosixewabuxogibawujimeme.pdfIn PDF document text
  • https://eyescare.vn/app/webroot/upload/ckfinder/files/13004445242.pdfIn PDF document text
  • http://dorisemitchell.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/pakatukinuvikovemixusowub.pdfIn PDF document text
  • http://workprohealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607403830cbfc---wokepa.pdfIn PDF document text
  • http://metall-press.ru/files/polawobijemazutexeta.pdfIn PDF document text
  • https://www.idromeccanicasrl.com/idromeccanicasrl.com/wp-content/plugins/super-forms/uploads/php/files/aecbb65a81e32f32b97b26f04aac08bb/29580941308.pdfIn PDF document text
  • http://usmleworkout.com/files/file/nukopij.pdfIn PDF document text
  • http://www.medicellbank.com/userfiles/files/40381461576.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=machine+translation+thesis+pdfPDF 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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