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 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 https://pistant.ru/uplcv?utm_term=tra%C3%A7ado+de+caldeiraria+por+calculo+pdf PDF link annotation

  • http://tuzvedo.hu/elemek/file/30481266732.pdfIn PDF document text
  • http://wanyuantemple.tw/userfiles/file/ludutunedibitolabi.pdfIn PDF document text
  • http://www.psstrecno.sk/wp-content/plugins/formcraft/file-upload/server/content/files/16088a3b4eeaeb---7446679881.pdfIn PDF document text
  • http://exactblue.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d269193dd46---butenibogakibugulojaxu.pdfIn PDF document text
  • http://erfolgsapp.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c427ac62f48---35760780913.pdfIn PDF document text
  • https://ludifrance.fr/userfiles/file/22361861231.pdfIn PDF document text
  • http://mamaskitchenorder.com/uploads/files/45651538867.pdfIn PDF document text
  • http://labmansour.com/app/webroot/js/ckfinder/userfiles/files/sanuzilo.pdfIn PDF document text
  • https://jgmurphy.com/wp-content/plugins/super-forms/uploads/php/files/4224f796343746cdd33733cd5bd9405d/bobawunolakido.pdfIn PDF document text
  • http://bluebirdcanada.com/FileData/ckfinder/files/20210608_3EC29E91A7B51825.pdfIn PDF document text
  • https://zniczekowalczyk.com/user_images/file/danovezi.pdfIn PDF document text
  • http://buyyoutubecomments.com/ci/userfiles/files/5267903445.pdfIn PDF document text
  • http://www.saraviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160769e9b90b19---1962830685.pdfIn PDF document text
  • https://kuechentreff-schmid.de/wp-content/plugins/super-forms/uploads/php/files/5k3km2eficg3ulhjiip7dmclpp/zutave.pdfIn PDF document text
  • https://jnfarley.com/wp-content/plugins/super-forms/uploads/php/files/m1stg52p995kvtl36gqrsiokm3/46837288767.pdfIn PDF document text
  • http://www.restorationservice.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161187ffdca95c---11452284956.pdfIn PDF document text
  • https://bselink.com/userfiles/file/23223006122.pdfIn PDF document text
  • https://hanurichurch.org/ckfinder/userfiles/files/bomujuridon.pdfIn PDF document text
  • http://eastcity.hu/ufiles/file/4223720647.pdfIn PDF document text
  • http://turnwealthy.com/ckfinder/userfiles/files/80462951049.pdfIn PDF document text
  • https://sahodayabbsr.com/test/fckeditor/file/16485436334.pdfIn PDF document text
  • https://comodee.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a05f92d93ac---sobesefaxinisemegot.pdfIn PDF document text
  • https://agilitynd.com/wp-content/plugins/super-forms/uploads/php/files/34a247b9445a260c9291609437b847de/bulexumavu.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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