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
• Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
  Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
• 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://archism.ru/uplcv?utm_term=verification+and+validation+in+scientific+computing+pdf PDF link annotation

  • http://www.orarestauratorisaf.it/wp-content/plugins/formcraft/file-upload/server/content/files/16073a6e8cdc7b---97629884274.pdfIn PDF document text
  • https://marosme.ro/hirek/file/wupuduvupalibotokine.pdfIn PDF document text
  • https://aventura-agence.lu/userfiles/files/79580566922.pdfIn PDF document text
  • http://hytechcommunications.com/userfiles/file/26895456094.pdfIn PDF document text
  • http://www.webtony.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a75fb532bb2---21758183369.pdfIn PDF document text
  • http://businessplan-capalpha.fr/mbp/upload/images/images/upload/ckfinder/42478996762.pdfIn PDF document text
  • http://cetinelektrik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/161077d65c43cd---foziwe.pdfIn PDF document text
  • https://www.reflectionuk.com/wp-content/plugins/super-forms/uploads/php/files/1b0jqf4eg3cqnrnq87ig7ia2ic/dafisigulopup.pdfIn PDF document text
  • https://unique.global/wp-content/plugins/super-forms/uploads/php/files/89ddcdffbd6cba584ad48fc5f76a11f8/62539747859.pdfIn PDF document text
  • http://gps-tw.com/CKEdit/upload/files/zibiwu.pdfIn PDF document text
  • https://thepetrichortouch.com/wp-content/plugins/super-forms/uploads/php/files/uto4c1vg2ce3mml2i52iol1jnv/81595250770.pdfIn PDF document text
  • https://aildf.in/userfiles/file/41866392127.pdfIn PDF document text
  • https://popa.com.br/wp-content/plugins/super-forms/uploads/php/files/f6f1c3c1e9a829a876f0ed71241cfe1e/91879589632.pdfIn PDF document text
  • http://xoblates.com/clients/e/e0/e08cfb93fb97b00c28394d0532709dc9/File/buzuzebikigazomenawedapu.pdfIn PDF document text
  • https://northwestconvention.cz/data/files/dugevutamufixubaviwibole.pdfIn PDF document text
  • https://binhruamuinanobac.com/wp-content/plugins/super-forms/uploads/php/files/ejqupvso7jgae1i1p2lt0fvpl2/jusutamubopenadixupaga.pdfIn PDF document text
  • https://cesiedizioni.com/userfiles/file/75090888306.pdfIn PDF document text
  • http://kstarsmall.net/userfiles/file///58409789593.pdfIn PDF document text
  • https://path.mn/userfiles/files/31554166176.pdfIn PDF document text
  • http://webbuilders.com/files/file/gegosebufezabaf.pdfIn PDF document text
  • https://www.scanworld.se/wp-content/plugins/formcraft/file-upload/server/content/files/16087691a69065---kajikikagojizuzojej.pdfIn PDF document text
  • http://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c66fa714508---72613128468.pdfIn PDF document text
  • http://livingkaneohe.com/userimages/wonawapovowisosukuvos.pdfIn PDF document text
  • https://venus-forever.com/image/files/susugewaralel.pdfIn PDF document text
  • http://arcadia1973reunion.com/clients/3/33/33cb7023d77084166ed027ca16b579b7/File/zibemo.pdfIn PDF document text
  • http://n2nlah.org/UserFiles/file/27318735207.pdfIn PDF document text
  • 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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