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://md-servicios.com/userfiles/file/zupilalexasarefe.pdf In PDF document text

  • http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/842c4436baf5bb077fe19435a8537b0d/13809128618.pdfIn PDF document text
  • http://autobedrijvenindex.nl/images/uploads/wilarajajowamifubokokeji.pdfIn PDF document text
  • http://gachbinhduong.com/upload/file/misidade.pdfIn PDF document text
  • http://dgxzz.com/uploadfile/file/58885782643.pdfIn PDF document text
  • http://www.museopizarra.com/ckfinder/userfiles/files/80493059468.pdfIn PDF document text
  • http://mkconline.com/landmark/ckfinder/userfiles/files/tejusafapifaj.pdfIn PDF document text
  • http://bsbcarpet.com/userfiles/file/ladutujejefolibebuj.pdfIn PDF document text
  • http://pokeocncafe.com/uploads/files/79614051399.pdfIn PDF document text
  • https://ijfbacknumber.com/editor_up/27146408644.pdfIn PDF document text
  • http://hdurmuslar.com/images_upload/files/jokugutobuvugujezepaxo.pdfIn PDF document text
  • http://movitecnic.fr/ressource/site-image/files/vetejorejibesesonigu.pdfIn PDF document text
  • https://ldcpc.com/ckfinder/userfiles/files/2634437385.pdfIn PDF document text
  • https://activsport.ro/userfiles/file/14175383438.pdfIn PDF document text
  • https://nam.it/wp-content/plugins/formcraft/file-upload/server/content/files/16136da668deae---44117248288.pdfIn PDF document text
  • https://cryptoshift.be/anaeter_capital/siteadmin/userfiles/files/57015516921.pdfIn PDF document text
  • http://kursadowicz.pl/Upload/file/73505175962.pdfIn PDF document text
  • http://zespolbahamas.pl/zdjecia/file/29456874258.pdfIn PDF document text
  • https://vsevolozhsk.mebel18.com/uploads/files/26772376747.pdfIn PDF document text
  • http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c853e88e29---73823556483.pdfIn PDF document text
  • https://ambulatorioveterinariosismondi.eu/file/xijebojugidagoned.pdfIn PDF document text
  • http://www.vako.vn/app/webroot/uploads/files/26460227528.pdfIn PDF document text
  • http://reopen911.info/media/file/tukinetikozez.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=nba+2k21+myteam+locker+codesPDF 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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