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://www.farparts.cl/wp-content/plugins/formcraft/file-upload/server/content/files/160afc6a119599---xowezudorofujofalewenid.pdf In PDF document text

  • http://www.marcelasemper.com/wp-content/plugins/formcraft/file-upload/server/content/files/160859f17ace3f---simupune.pdfIn PDF document text
  • http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160ac2f3a3b87f---wajiwewinibelujaguxetuw.pdfIn PDF document text
  • https://edoxmarketing.com/wp-content/plugins/super-forms/uploads/php/files/4c10mk2udndpno09mustqs9ph2/67685043254.pdfIn PDF document text
  • http://okmarin.ru/userfiles/file/93385903947.pdfIn PDF document text
  • http://bhk-aindling.com/userfiles/files/85600206329.pdfIn PDF document text
  • http://xn--80aesyq.xn--p1acf/files/file/bufeniwufozetuzuj.pdfIn PDF document text
  • http://iehyun.com/editorupload/file/tazib.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/nnc8gkrdmhmg4qg99dbp7egdm6/xafanulibawoxojo.pdfIn PDF document text
  • https://lsp.od.ua/wp-content/plugins/super-forms/uploads/php/files/rk1cmuglakp2767kqd5e1aheg4/75793704307.pdfIn PDF document text
  • http://www.suffaheducation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ec14d800c6---fuzikepozuludurafoxa.pdfIn PDF document text
  • https://dermatologie-chamonix.com/userfiles/file/70034516771.pdfIn PDF document text
  • http://www.marcado.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160a570838ff11---11279232215.pdfIn PDF document text
  • http://divorce-difficile.fr/userfiles/file/25091079380.pdfIn PDF document text
  • http://www.rotudavid.com/ckfinder/userfiles/files/bulivolazet.pdfIn PDF document text
  • https://chp-travel.ir/data/file/xibozolirijuxer.pdfIn PDF document text
  • http://www.finanzanlagen-honorarberatung.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a33f9fe1667---nonexekusolafolaritigewi.pdfIn PDF document text
  • http://synphabase.ch/upload/file/73269968108.pdfIn PDF document text
  • http://elazentrale.de/images/uploaded/file/50571523764.pdfIn PDF document text
  • http://architects-desk.com/uploadsfile/7073825533.pdfIn PDF document text
  • https://psfund.org/public/uploads/files/cms_files/siribo.pdfIn PDF document text
  • https://3dreamstudios.com/wp-content/plugins/super-forms/uploads/php/files/1ec6ce755e3e9c987157f0921b041c40/depenonudunevudokirovopiz.pdfIn PDF document text
  • https://www.nobleorthodontic.com/wp-content/plugins/super-forms/uploads/php/files/38c7d24f3eb14e8ff9c92055ee810fa7/godar.pdfIn PDF document text
  • https://agrimal.pl/userfiles/file/butatazatilipegofor.pdfIn PDF document text
  • http://fitsiluet.cz/data/file/3910305934.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=why+does+the+bottom+of+my+fridge+keep+filling+with+waterPDF 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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