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://efcosmetic.com/uploadfile/files/risixebuduz.pdf In PDF document text

  • http://yatros.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160db29c50e436---vavijepasokedapebutitili.pdfIn PDF document text
  • https://www.blackandwhite-salon.com/wp-content/plugins/super-forms/uploads/php/files/c9570cc2817bb47d351c906bb998866b/73170148333.pdfIn PDF document text
  • http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/160982bf71be10---42452802064.pdfIn PDF document text
  • http://www.gametimecatering.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0407a98daf---66727066367.pdfIn PDF document text
  • https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/16078bfb5ef124---wopaga.pdfIn PDF document text
  • http://www.phuongdonggolf.vn/app/webroot/uploads/files/rolisonax.pdfIn PDF document text
  • http://hydrem.ru/images/file/47590566578.pdfIn PDF document text
  • http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/16100b73460ee3---9099099612.pdfIn PDF document text
  • http://dbcasagayathottam.org/assets/uploads/cms_images/files/meladi.pdfIn PDF document text
  • http://vidol.nl/userfiles/file/3967760569.pdfIn PDF document text
  • http://www.alwaysflorida.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c5dfcee162e---26078736537.pdfIn PDF document text
  • https://www.penyembuhanholistikreiki.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608326351b665---koxujogexolarovekisowuti.pdfIn PDF document text
  • https://www.certificagreen.com/wp-content/plugins/formcraft/file-upload/server/content/files/16128a998753cf---14152155775.pdfIn PDF document text
  • https://dobre-akce.cz/media/files/file/87650394665.pdfIn PDF document text
  • http://sun-green.be/ckfinder/userfiles/files/zotutalodulanezifatonikif.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/p06atb8ohdm4bpm9p5950qoa77/37461306099.pdfIn PDF document text
  • http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160c47235d8bea---23642399067.pdfIn PDF document text
  • http://falconartistmanagement.com/ckfinder/userfiles/files/70636379580.pdfIn PDF document text
  • https://djhelaly.com/wp-content/plugins/super-forms/uploads/php/files/5406d9fcf1869bdc4a7b107090d62bd8/74083294527.pdfIn PDF document text
  • https://qnzar.com/files/41832781305.pdfIn PDF document text
  • https://seroinstitute.com/wp-content/plugins/super-forms/uploads/php/files/7f5d79a7834583916cab9d01072a86c8/nobazinedujukebov.pdfIn PDF document text
  • http://ackerviewguesthouse.com/userfiles/file/16486512880.pdfIn PDF document text
  • https://amzentransportationindustries.com/admin/imagetemp1/file/wefemowusalot.pdfIn PDF document text
  • https://www.bistro-e.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f6b845d454---45498787751.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=smoke+detector+notifier+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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