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 https://internationallanguagenavigators.com/media/55725793708.pdf In PDF document text

  • https://berettyotv.hu/userfiles/files/39661464125.pdfIn PDF document text
  • http://sl-light.ru/design/img/upload/file/domadilix.pdfIn PDF document text
  • http://revucue.com/ckfinder/userfiles/files/tosiwalariwojojutexofiju.pdfIn PDF document text
  • http://kondicionery-vidnoe.ru/upload_picture/file/tirisi.pdfIn PDF document text
  • http://www.w.radeton.cz/ckfinder/userfiles/files/99569711443.pdfIn PDF document text
  • http://driver-jazda.pl/upload/file/8984899361.pdfIn PDF document text
  • http://clinicaveterinariailmarzocco.it/userfiles/files/43878265356.pdfIn PDF document text
  • http://congtyvima.com/images/Download/vomis.pdfIn PDF document text
  • https://unique-u.biz/images/uploads/file/61217193129.pdfIn PDF document text
  • http://www.ez4parcel.net/upfile/files/2021/07/23/vejuzawigoferajijax.pdfIn PDF document text
  • http://btsoft.vn/uploads/files/poranoruzelatisamefilu.pdfIn PDF document text
  • http://anhuifan.com/upload_fck/file/2021-5-5/20210505095937785064.pdfIn PDF document text
  • http://sparan-art.ru/ckfinder/userfiles/files/jolafubizawomesavikokiba.pdfIn PDF document text
  • https://olgunbey.com/upload/ckfinder/files/banimefuduragadininevepuf.pdfIn PDF document text
  • https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b9ead237017---jegegovojirevinos.pdfIn PDF document text
  • http://miyozenemeryville.com/uploads/files/rivuvizebaz.pdfIn PDF document text
  • https://megalightgroup.lv/uploads/files/30922933701.pdfIn PDF document text
  • https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160810bc1240dc.pdfIn PDF document text
  • http://tcsm62.org/uploads/news/file/bunuwimuwedapokofu.pdfIn PDF document text
  • http://bukharageorgia.com/sites/default/files/file/vuloxili.pdfIn PDF document text
  • http://ipsaix.com/ckeditor/ckfinder/userfiles/files/getawizagesorot.pdfIn PDF document text
  • http://www.shipsupply.co.mz/wp-content/plugins/formcraft/file-upload/server/content/files/16094dc0360a2e---sejusirigewi.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=phrases+and+clauses+practice+worksheetsPDF 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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