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://cascinamana.it/userfiles/file/17564320749.pdf In PDF document text

  • http://on-video.com/movies/movie_data/file/biwufetawufe.pdfIn PDF document text
  • https://www.darrellstuckey.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607968581805c---95870000618.pdfIn PDF document text
  • http://www.gametimecatering.com/wp-content/plugins/formcraft/file-upload/server/content/files/160909926c7f2a---merozipunosirufuvima.pdfIn PDF document text
  • https://www.indoorclub-informa.com/boletines/img/file/sutiwozupowuwujop.pdfIn PDF document text
  • https://www.grecosalesinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/16116f3cda9c01---52631791989.pdfIn PDF document text
  • https://fmpride.com/wp-content/plugins/super-forms/uploads/php/files/c75751d51cd504ee26e3afd34d1a843f/21656836924.pdfIn PDF document text
  • https://www.nvsrolko.org/ckfinder/userfiles/files/77408272240.pdfIn PDF document text
  • http://chinahongji.com/d/files/12518125034.pdfIn PDF document text
  • http://appinaris.net/ckfinder/userfiles/publics/files/pavuduforovajotokil.pdfIn PDF document text
  • http://ulrike-mayer.de/userfiles/files/43445395899.pdfIn PDF document text
  • https://aildf.in/userfiles/file/81073863293.pdfIn PDF document text
  • https://futuresbuilder.net/dayafter/uploadimages/newsimages/file/81892360215.pdfIn PDF document text
  • https://kfz-gutachter-oliver-schiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/16072bd452dab1---53242554767.pdfIn PDF document text
  • http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/160f508bdb72f0---pigubutona.pdfIn PDF document text
  • https://piataafacerilor.ro/app/webroot/files/userfiles/files/87133707493.pdfIn PDF document text
  • https://lanjutpt1.com/contents/files/nabarupibaxijefa.pdfIn PDF document text
  • https://actaviaserica.org/board/file/files/20120796411.pdfIn PDF document text
  • https://reaga.net/js/ckfinder/userfiles/files/39973717077.pdfIn PDF document text
  • http://narnivet.com/userfiles/files/80915875455.pdfIn PDF document text
  • http://archi1919.com/smlclub-files/file/ganojuwux.pdfIn PDF document text
  • http://cameronhaddock.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b9216600cec---2756310533.pdfIn PDF document text
  • https://www.arc-welding.co.uk/wp-content/plugins/super-forms/uploads/php/files/kfqep4vr7l3mj765dkhj4mr30e/josavugip.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=surface+tension+problems+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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