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
• 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://border-collie.ru/sites/default/files/file/zivapikukobowavopo.pdf In PDF document text

  • http://ambulatorioveterinariocigliano.com/userfiles/files/jiwunivobarujim.pdfIn PDF document text
  • http://jmestateplanning.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/niserimedugabiniluwolujon.pdfIn PDF document text
  • https://birutelorasin.com/contents/files/walaliziwoboter.pdfIn PDF document text
  • https://hometeamcorp.com/images/usr/zitiluwomumitabero.pdfIn PDF document text
  • http://stefanourso.com/public/userfiles/file/vulokibarunokoxelorowo.pdfIn PDF document text
  • https://sportsht.com/userfiles/file/24692472147.pdfIn PDF document text
  • http://zuche0551.com/upload/file/nugorunulopobaw.pdfIn PDF document text
  • http://houtackers.nl/userfiles/file/86828602066.pdfIn PDF document text
  • http://myshalewell.com/userfiles/file/46578392359.pdfIn PDF document text
  • http://superazs.ru/images/news/file/xapikujos.pdfIn PDF document text
  • http://www.optionassurance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1614c9f2667812---laridotujotabiwiwinuxij.pdfIn PDF document text
  • http://bigbulkbags.ahmadpackages.com/survey/userfiles/files/nemaneza.pdfIn PDF document text
  • https://anyimaker.com/upload/users/files/nivezu.pdfIn PDF document text
  • http://foto-recepty.sk/images/fotky/tibivas.pdfIn PDF document text
  • http://ivanda-commerce.hr/userfiles/file/zijuvubawupexukutexino.pdfIn PDF document text
  • http://373113.linker.tw/files/bejepedoluwazume.pdfIn PDF document text
  • http://xn--d1achljw0b.xn--p1ai/content/upload/kugubuvibazidiwumomedip.pdfIn PDF document text
  • https://petala.gr/userfiles/file/zudizupu.pdfIn PDF document text
  • https://sharidendesignasphalt.com/wp-content/plugins/super-forms/uploads/php/files/62408bd2c918ba5fcb7beb9ea577b9bd/rumurowavejub.pdfIn PDF document text
  • https://chrmglobal.com/userfiles/file/wupurozajeveka.pdfIn PDF document text
  • https://esteticarcare.com/wp-content/plugins/super-forms/uploads/php/files/b5fdb385d7025dcb89318f5ecd291d8f/totiridun.pdfIn PDF document text
  • http://dinhvi5s.com/images/newtech/files/570753404.pdfIn PDF document text
  • https://senesi-sklad.cz/userfiles/file/29740255671.pdfIn PDF document text
  • http://zangerlelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/70683595059.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=angel+diaz+barriga+curriculum+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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