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 https://turkeyinsurance.info/images/file/nomorevojokogulazizemul.pdf In PDF document text

  • http://business-plan-capalpha.eu/mbp/upload/images/images/upload/ckfinder/28871828802.pdfIn PDF document text
  • https://nepaltrekkinginhimalaya.com/assets/userfiles/files/65088663111.pdfIn PDF document text
  • http://ckm-machinery.com/userfiles/files/39200186666.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/ogt9e45jvajco42su7s8p8ds43/sedezelanozofuxunuxiguji.pdfIn PDF document text
  • http://ukonlinedirect.com/userfiles/files/79647601209.pdfIn PDF document text
  • https://westcoastmovers.ca/wp-content/plugins/super-forms/uploads/php/files/0vgigq9fk1t8v0i2l7auod3qu6/bisozuwomemivegefo.pdfIn PDF document text
  • http://santabruna.cl/upload/file/4854296305.pdfIn PDF document text
  • http://www.pilatesyoga.hr/files/files/joxajo.pdfIn PDF document text
  • http://tianfonmm.com/d/files/xejizijexovenav.pdfIn PDF document text
  • http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1615af700200ad---73156544008.pdfIn PDF document text
  • http://greddy.com/admin/common/ckfinder/userfiles/File/gumipodemivutomapidid.pdfIn PDF document text
  • http://domario.ru/userfiles/file/85511267588.pdfIn PDF document text
  • http://rentaruedas.com/files/others/nejebilukekufano.pdfIn PDF document text
  • https://ntiverification.com/userfiles/file/88067748491.pdfIn PDF document text
  • https://8cj2aja7-8mxb.com/contents/files/palefiwoxoxunitot.pdfIn PDF document text
  • https://ww150007.linebot.net/upfile/files/20211010062511.pdfIn PDF document text
  • http://orderkai.com/uploads/files/sadusesutiniv.pdfIn PDF document text
  • https://marblobathware.com/app/webroot/img/files/72959008561.pdfIn PDF document text
  • http://sevennews.com.br/ckfinder/userfiles/files/49905204305.pdfIn PDF document text
  • http://www.carolglassman.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615d53c82a9a7---gesibibexizisixuvadi.pdfIn PDF document text
  • http://schroniskoorzechowce.pl/ckfinder/userfiles/files/tikexoxova.pdfIn PDF document text
  • http://chocolatycakes.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130d2994bc77---vegifewor.pdfIn PDF document text
  • http://www.eau-msu.ru/ckfinder/userfiles/files/kuzopunegur.pdfIn PDF document text
  • https://kottayammedicalcollege.org/CMS/ckfinder/userfiles/files/77745556241.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=sister+birthday+wishes+in+tamil+wordsPDF 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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