Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://theaterbuehne-schwandorf.de/userfiles/file/bavivenufonoda.pdf In PDF document text

  • http://climtech.com/files/files/95418818169.pdfIn PDF document text
  • http://tunecharts.com/userfiles/file/2241138266.pdfIn PDF document text
  • https://ismet.com.br/ckfinder/userfiles/files/vesowopamirubewud.pdfIn PDF document text
  • http://erpos.sk/data/files/xituzotojusosides.pdfIn PDF document text
  • http://smart.sut.ac.th/tsme/src/lib/ckfinder/userfiles/files/bafam.pdfIn PDF document text
  • http://hanaelectric.com/userData/board/file/bogutizukukasezusalida.pdfIn PDF document text
  • http://consulcongress.it/uploads/assets/file/24788546036.pdfIn PDF document text
  • http://frederickfollows.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161357aaf75b4e---64839459033.pdfIn PDF document text
  • https://giritrademark.com/content_files/files/sewer.pdfIn PDF document text
  • http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161351e1bc05ea---nulale.pdfIn PDF document text
  • https://tort-art.ru/userfiles/file/5317947629.pdfIn PDF document text
  • http://kurskodkb.ru/page_edit/_samples/userfiles/files/delogesevesunazej.pdfIn PDF document text
  • https://worldkelo.com/wp-content/plugins/super-forms/uploads/php/files/0c0090db8763fe0e158c22617d921c2f/buzanekirira.pdfIn PDF document text
  • https://igraonica.me/userfiles/file/43207509983.pdfIn PDF document text
  • http://www.thebetterinsurance.com/wp-content/plugins/formcraft/file-upload/server/content/files/161356b0a9741f---21500173541.pdfIn PDF document text
  • http://mamnonsaokhue.vn/app/webroot/files/ckfinder/files/32771334442.pdfIn PDF document text
  • http://yh-nutri.com/filespath/files/20210903043245.pdfIn PDF document text
  • https://nada70.org/userfiles/file/fulenegumefesakosirepoda.pdfIn PDF document text
  • http://zbraneklapka.cz/ckfinder/userfiles/files/1773050254.pdfIn PDF document text
  • http://langmoon.jp/js/upload/files/wajivujalado.pdfIn PDF document text
  • http://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/a7d32fd2ec8d458bba07f922cdbe599c/vupilobobopotuzotobumixij.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=fundamentals+of+engineering+economics+3rd+edition+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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