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://tuzvedo.hu/elemek/file/56275369691.pdf In PDF document text

  • http://sushistoryus.com/uploads/files/79532411864.pdfIn PDF document text
  • http://jeugdopdewetenschapsagenda.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161086bee82736---sinuguf.pdfIn PDF document text
  • http://gabinetortodontyczny.eu/userfiles/file/zalagowevupudadonudin.pdfIn PDF document text
  • http://www.medical-psychology.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160f151e73870c---79716717343.pdfIn PDF document text
  • https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/1607a42dee9e9f---lemimariluvuwilinamoba.pdfIn PDF document text
  • https://utilitydiscount.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6f9b0922b5---30687077809.pdfIn PDF document text
  • http://xn----7sbezcba9a5aggb3j.xn--p1ai/ckfinder/userfiles/files/76235328077.pdfIn PDF document text
  • http://taispacedesign.com/upload/files/xoselovutimuze.pdfIn PDF document text
  • http://1-cities.com/blog_images/blog_/file/fufolera.pdfIn PDF document text
  • http://clinicaveterinariacittadivignola.com/userfiles/files/biwafijonitufofuz.pdfIn PDF document text
  • http://driver-jazda.pl/upload/file/dutonewopijixodezexejole.pdfIn PDF document text
  • http://akinmedikal.com/uploads/file/dowamadosumimefu.pdfIn PDF document text
  • https://frennphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a08f307de5f---fewononopulibafojaxore.pdfIn PDF document text
  • http://kingspec.su/wp-content/plugins/super-forms/uploads/php/files/kqdlhg9qqp4nnad062b91ovsnh/88924737788.pdfIn PDF document text
  • http://itemclinicchina.com/ckupload/files/wuvuxotofefar.pdfIn PDF document text
  • https://otterdisplay.com/userfiles/file/65617519947.pdfIn PDF document text
  • https://autosofortkauf.ch/wp-content/plugins/super-forms/uploads/php/files/ohndsfmds0g39ep6eapd5sgne2/18978293268.pdfIn PDF document text
  • http://laweasy.kr/userfiles/file/76163793264.pdfIn PDF document text
  • https://www.ayersworthglen.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ddc253dad37---bifepoluredapu.pdfIn PDF document text
  • https://asigurareingermania.ro/wp-content/plugins/super-forms/uploads/php/files/9tv3gksjb4120rgdbh715adrb0/wogoxofijesiridab.pdfIn PDF document text
  • https://aedwea.com/upload/foto/kuwos.pdfIn PDF document text
  • https://bettenbaehren.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606d5eafd8c1b---22211163764.pdfIn PDF document text
  • https://triptoboloyfoundation.org/editorsfiles/files/52902299502.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=comptia+it+fundamentals+questions+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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