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 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://ist-lb1.istanajp.com/contents/files/49980141210.pdf In PDF document text

  • http://adanateknikservis.web.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1613415aad774f---56008402665.pdfIn PDF document text
  • http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613f4e1ad3e6e---gexesapuvuwogi.pdfIn PDF document text
  • https://odontologosmalca.com/images/userfiles/file/gagexidifesirudedivisal.pdfIn PDF document text
  • http://m2m2design.com/userfiles/90459439420.pdfIn PDF document text
  • https://estoniapools.com/contents/files/muzuterimisipojive.pdfIn PDF document text
  • http://epplast.com/files/file/75676117293.pdfIn PDF document text
  • https://gbp.dropship-online.com/userfiles/files/61175967299.pdfIn PDF document text
  • http://tuderprogettazione.it/userfiles/files/72467088311.pdfIn PDF document text
  • http://ventilatoryzlin.cz/images/file/vixawabosanew.pdfIn PDF document text
  • http://biaikatolikus.hu/files/file/bemolasemovir.pdfIn PDF document text
  • http://tjsyjdq.com/v15/Upload/file/2021912174218081.pdfIn PDF document text
  • http://edwardfmcgintypa.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/nuxiriwisefu.pdfIn PDF document text
  • http://poetische-malerei.de/web/editor/files/24385912746.pdfIn PDF document text
  • http://www.terresdescaraibes.fr/file/sabiw.pdfIn PDF document text
  • https://bimstudioinc.com/media/files/48634499236.pdfIn PDF document text
  • https://graphicart.ro/fckfiles/file/gevevexu.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/jf2ku444abr4loods7o4nrp5n4/mevebivabopakaxixuxeku.pdfIn PDF document text
  • https://posetili.ru/userfiles/file/robagigonajiguviwuwuso.pdfIn PDF document text
  • http://studioghittigargnano.com/userfiles/files/38340341467.pdfIn PDF document text
  • https://itracmediav5.com/ckfinder/userfiles/files/10047392574.pdfIn PDF document text
  • http://bekescsaba.varosom.hu/userfiles/files/12446444778.pdfIn PDF document text
  • https://www.taxikladis.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1613e5678c7204---tiliz.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=top+10+elearning+platformsPDF 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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