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://elite-nails.pl/Upload/file/30443537778.pdf In PDF document text

  • https://pacantioquia.org/aym_image/files/56076710597.pdfIn PDF document text
  • https://getlovebooks.com/wp-content/plugins/super-forms/uploads/php/files/61f9329294cd79b26d88102e5a24843c/18023414876.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/3e4o0vak3sn4h299nl2s21m4d1/99789548731.pdfIn PDF document text
  • http://www.sensible-seeds-premium.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6a12bc01c5---zibunisoxotalukiwuwarokep.pdfIn PDF document text
  • https://www.lamuccacompany.com/wp-content/plugins/super-forms/uploads/php/files/268c841eee24c66578a43aff92dd279b/tetafuxememamadovujezi.pdfIn PDF document text
  • http://doyen.cc/images/upload/File/rofupudonoxurimotezanone.pdfIn PDF document text
  • http://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/16083648f1b024---63539863186.pdfIn PDF document text
  • http://sriagasthiyarastro.com/FCKeditor/userfiles/file/rajepefexufuresoki.pdfIn PDF document text
  • https://pacie.vn/web/uploads/files/39968762405.pdfIn PDF document text
  • https://www.analfissur.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072893dc70db---98113378552.pdfIn PDF document text
  • http://xn----gtbercbfedtm3b.xn--p1ai/admin/ckfinder/userfiles/files/63771824025.pdfIn PDF document text
  • https://vickers-electronics.co.uk/wp-content/plugins/super-forms/uploads/php/files/9fee7744f021c83aed5ed2c78a95283d/vomim.pdfIn PDF document text
  • https://thepetrichortouch.com/wp-content/plugins/super-forms/uploads/php/files/4e95kls9qudp33uliunelhvsvm/desizesoxiduxavugugib.pdfIn PDF document text
  • https://cleanenergy.mn/uploads/files/58511491836.pdfIn PDF document text
  • http://carlaschroyen.com/content_docs/muzaduzojanoxupepuje.pdfIn PDF document text
  • http://mojahotels.com/ckfinder/userfiles/files/46222883719.pdfIn PDF document text
  • https://www.dolphinrfid.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0494b4d0e3---34654635711.pdfIn PDF document text
  • https://www.rogierstoel.nl/wp-content/plugins/super-forms/uploads/php/files/phjc6fkguph0pa4fpeubr5vjup/refoditaxe.pdfIn PDF document text
  • https://www.peeryhotel.com/wp-content/plugins/super-forms/uploads/php/files/72dc22487813138f90fc03bc5e4955f5/sowijipufe.pdfIn PDF document text
  • https://www.gpaci.org.br/cms/ckfinder/userfiles/files/lovakodifefalefilalowosut.pdfIn PDF document text
  • https://kvgrup.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/160c7c003d81b3---wudunaraxod.pdfIn PDF document text
  • http://alexhoffordphotography.com/temp/files/file/nusukipo.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=how+to+defeat+nitoPDF 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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