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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://pistant.ru/uplcv?utm_term=forge+of+empires+ios+hack PDF link annotation

  • http://eugensa.lt/app/webroot/uploads/userfiles/files/21515892058.pdfIn PDF document text
  • http://www.barankayalar.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1613500ee3e6c0---33068055199.pdfIn PDF document text
  • http://kehlux.lu/userfiles/files/nemebebagimanubu.pdfIn PDF document text
  • https://lose-weight.tw/upload/files/fipegivonemer.pdfIn PDF document text
  • https://sikanderajam.com/Robinson/ckfinder/userfiles/files/dajadeb.pdfIn PDF document text
  • http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/c56888759fb396977c5331fe13d259f6/86306783334.pdfIn PDF document text
  • http://natalieshuff.com/uploads/file/manog.pdfIn PDF document text
  • http://textstricker.de/benutzerdateien/litorejogoratem.pdfIn PDF document text
  • http://csp.hu/editor_up/fafijukusifinenatijotufi.pdfIn PDF document text
  • http://ck-tct.ru/userfiles/file/86064384770.pdfIn PDF document text
  • http://ramseier-appenzell.ch/elrada/js/ckfinder/userfiles/files/dafajuxopuvofimarunobos.pdfIn PDF document text
  • http://carraracucinecomponibilitrapani.it/userfiles/files/96981097146.pdfIn PDF document text
  • https://zenmobile.in/jaipriyart/uploads/files/bazuninukav.pdfIn PDF document text
  • http://hicoweld.com/shop/fck_file/file/22054394120.pdfIn PDF document text
  • http://househouse.it/userfiles/files/lumuboxaduvazofavereve.pdfIn PDF document text
  • http://vip-cond.ru/userfiles/file/71240797550.pdfIn PDF document text
  • https://bodymart.in/ckfinder/userfiles/files/95922322937.pdfIn PDF document text
  • http://haithuanphat.com/uploads/files/sinijogupixisexoko.pdfIn PDF document text
  • https://epponline.com/mentorfinancial/page_images/file/raridadamabisobojufosar.pdfIn PDF document text
  • https://castilloexterior.es/ckfinder/userfiles/files/10390161539.pdfIn PDF document text
  • https://pixel.bg/img/file/sunetujov.pdfIn PDF document text
  • http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613bee161aa9d---39240632213.pdfIn PDF document text
  • http://asja.ua/userfiles/file/18851087750.pdfIn PDF document text
  • https://hopefor.today/wp-content/plugins/super-forms/uploads/php/files/eb88ae0d878e2a47088f60dcf3a290ba/78390089432.pdfIn PDF document text
  • 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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