Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Urgency / deadline lure low SE_URGENCY_LURE
  Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
• 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://nhuaduongnhapkhauaz.info/upload/files/12813410978.pdf In PDF document text

  • http://www.skupp.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160a6803bbbfad---zerubojinit.pdfIn PDF document text
  • http://www.franklinwebdesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ae10fadd2ed---sunipowabube.pdfIn PDF document text
  • http://www.publicitymailing.ie/wp-content/plugins/formcraft/file-upload/server/content/files/16074ae560b58e---4914822616.pdfIn PDF document text
  • http://offerseir.com/basefile/offerseircom/files/fukufimom.pdfIn PDF document text
  • http://obrienbuilders.com/userfiles/file/rigazamaginuborigok.pdfIn PDF document text
  • http://scpt.it/userfiles/files/63447847641.pdfIn PDF document text
  • http://portaldo.eu/contenuti/upload/file/ladateninowekigoxokode.pdfIn PDF document text
  • http://weorderfood.com/uploads/files/noludaposapi.pdfIn PDF document text
  • https://artedeeducar.com.br/ckfinder/userfiles/files/gamisapuzexiwazonowagar.pdfIn PDF document text
  • https://erdenet.mn/userfiles/file/nevigej.pdfIn PDF document text
  • https://tideandtigers.com/ckfinder/userfiles/files/sazizis.pdfIn PDF document text
  • http://padgettlawreunion.com/clients/79772/File/jifozovovotugolexirede.pdfIn PDF document text
  • http://aeskulap24h.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bbc47f5de45---wepidesije.pdfIn PDF document text
  • https://vuaship.com/wp-content/plugins/super-forms/uploads/php/files/2elr64qle3oi9etdvqb93l3alf/24225977486.pdfIn PDF document text
  • http://scamps.biz/userfiles/file/fitomujaridumivunututak.pdfIn PDF document text
  • https://victory-agency.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087bf299cad4---fumomajedew.pdfIn PDF document text
  • https://artasedanasingaraja.com/uploadfck/file/kevilafakisidudoda.pdfIn PDF document text
  • https://ilcaminodaugo.it/file/xotojulopi.pdfIn PDF document text
  • https://ambulatorioveterinariosismondi.eu/file/33918758144.pdfIn PDF document text
  • http://rethabise.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1607c3b011e189---80405887089.pdfIn PDF document text
  • http://all-pass.com/folder/editor/file/83785145897.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=acute+right+thalamic+infarctPDF 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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