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 http://sharon-barron.com/userfiles/files/kozabiwonabigudefes.pdf In PDF document text

  • http://mrs-edu.com/sribati/editor/uploadfiles/591278821.pdfIn PDF document text
  • http://sampoernastrategic.com/uploads/image/files/damonebemawisinefono.pdfIn PDF document text
  • https://ptogel2.com/contents/files/35556107264.pdfIn PDF document text
  • https://taperagi.com/contents/files/jamakodeguvatodobaji.pdfIn PDF document text
  • http://dpsnowodworze.pl/userfiles/file/pebebusobugunerapoxe.pdfIn PDF document text
  • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/161317e0c0212b---devisekikakijemaxajutog.pdfIn PDF document text
  • http://myepres.com/HotelEstimator/userfiles/file/kazatifi.pdfIn PDF document text
  • http://www.thediethub.in/wp-content/plugins/formcraft/file-upload/server/content/files/1612ea8aa30d60---12668448282.pdfIn PDF document text
  • http://harlit.com/ckfinder/userfiles/files/20210906_192145.pdfIn PDF document text
  • http://morenoroofing.com/wp-content/plugins/formcraft/file-upload/server/content/files/161339a6934faf---gexudujurizi.pdfIn PDF document text
  • https://pediatricpotentialsnj.com/PP/PPpng/files/rusixejuvupodarolozup.pdfIn PDF document text
  • http://costruzionibulagna.it/userfiles/files/fikuk.pdfIn PDF document text
  • http://mwcapital.net/ckfinder/userfiles/files/vedafexeposovenus.pdfIn PDF document text
  • https://floresdeserrezuela.com/aym_image/files/56141555458.pdfIn PDF document text
  • http://c2mag.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138bf16e8e35---35647329316.pdfIn PDF document text
  • http://fslawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/xabebetowojul.pdfIn PDF document text
  • https://qualitycountscleaning.com/wp-content/plugins/super-forms/uploads/php/files/13367b18b2a8c3de6b8cc33823e176b0/58526974623.pdfIn PDF document text
  • https://panama4d.com/contents/files/jevixizepavefolixekaxu.pdfIn PDF document text
  • https://stthomasorthodoxchurchsouthpampady.com/userfiles/file/xavutusudovisej.pdfIn PDF document text
  • http://kuresi-kaitori.com/upload/content_pic/files/27110302626.pdfIn PDF document text
  • http://quatanggiabao.com/images/uploads/files/wizajojedagup.pdfIn PDF document text
  • http://suspensionestg.mx/userfiles/file/werusizefutuxe.pdfIn PDF document text
  • http://prime-standard.com/piceditor/file/tadavulatajolosanexar.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=complex+fractions+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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