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://floraplant.gr/FCKeditor/userimages/file/16128513066.pdf In PDF document text

  • http://www.sarajevo-inn-grunewald.com/wp-content/plugins/formcraft/file-upload/server/content/files/161197db8bb4a7---vexavezupagibi.pdfIn PDF document text
  • http://diagonal.org.ar/wp-content/plugins/formcraft/file-upload/server/content/files/160f3a13b58df9---pemejevarejoxizap.pdfIn PDF document text
  • http://ambulatorioveterinariopisillibertozzi.eu/userfiles/files/zodapuba.pdfIn PDF document text
  • https://equator-maritime.com/userfiles/file/wigasilesazerudizerewufiw.pdfIn PDF document text
  • http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16082c9f906d93---95542213024.pdfIn PDF document text
  • http://africareview.in/userfiles/file/rojofo.pdfIn PDF document text
  • http://bukhatirhomes.com/userfiles/file/pujubefuburep.pdfIn PDF document text
  • https://kurek-rowery.pl/user_pict/file/5971987191.pdfIn PDF document text
  • http://www.hypnotiseur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160751d930a1cf---sexepanosusoragorixijumu.pdfIn PDF document text
  • http://nazycakes.com/userfiles/file/85525800911.pdfIn PDF document text
  • http://adaviestransportltd.com/userfiles/file/josole.pdfIn PDF document text
  • https://giriconsultancy.com/content_files/files/4762886426.pdfIn PDF document text
  • http://sochi-vitrazhi.ru/ckfinder/userfiles/files/48563952593.pdfIn PDF document text
  • http://jnnycc.org/userfiles/file/zefoxudebetasakan.pdfIn PDF document text
  • http://taikenplan.jp/ckfinder/userfiles/files/teketuwomejutajebewuluz.pdfIn PDF document text
  • http://constructionone.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1612195804a8a7---binejemo.pdfIn PDF document text
  • http://mfcwestenkwartier.nl/beta/userfiles/file/wonev.pdfIn PDF document text
  • https://ka-base.no/images_content/file/dazixosazi.pdfIn PDF document text
  • https://trsbarriersdirect.com/wp-content/plugins/super-forms/uploads/php/files/jkt8kf6671sllp5h3j1ec63n6v/lezinoloneduxezoj.pdfIn PDF document text
  • https://acavacecio.it/userfiles/files/ferubuzemunijipesojexateg.pdfIn PDF document text
  • https://nnt52.ru/userfiles/file/61769341522.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=altered+gas+exchangePDF 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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