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.
• Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
  Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
• 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 http://fruitvita.com/files/files/46178562404.pdf In PDF document text

  • http://straps.by/ckfinder/userfiles/files/11665623659.pdfIn PDF document text
  • http://uni-farm.pl/ckfinder/userfiles/files/20969280691.pdfIn PDF document text
  • http://goldenpeak.it/userfiles/files/15561882975.pdfIn PDF document text
  • http://jnnycc.org/userfiles/file/bejesutiv.pdfIn PDF document text
  • http://issaproject.com/app/views/panel/ckfinder/userfiles/files/2438363734.pdfIn PDF document text
  • http://thriftstorewebsites.com/flash/thriftstorewebsites.com/file/foxurakipizogav.pdfIn PDF document text
  • http://www.anapharmata.hu/ckfinder/core/connector/php/files/43531408006.pdfIn PDF document text
  • http://cappellastudio.it/userfiles/files/88212927675.pdfIn PDF document text
  • https://www.heainc.com/wp-content/plugins/formcraft/file-upload/server/content/files/161315a62199d8---41734096518.pdfIn PDF document text
  • http://cps-mbstu.edu.bd/app/webroot/js/ckfinder/userfiles/files/xiduwopeg.pdfIn PDF document text
  • http://xn----7sbev0bhje.xn--p1ai/images/news/file/jowikunepipoxotopanijeder.pdfIn PDF document text
  • https://quanticabtl.com/cms_2018_quantica/sgi_userfiles/userfiles/files/tedajitopavalap.pdfIn PDF document text
  • http://www.kickcommerce.com/userfiles/file/56940921228.pdfIn PDF document text
  • http://fmmvn.net/userfiles/files/85692120073.pdfIn PDF document text
  • https://uclerbaklava.com/resources/file/18328270390.pdfIn PDF document text
  • https://energiadirect.pl/application/resources/ckfinder/userfiles/files/49891722899.pdfIn PDF document text
  • http://wernersuarez.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/zorumopusubemikekak.pdfIn PDF document text
  • http://shimamura-mail-order.com/userfiles/file/92195969612.pdfIn PDF document text
  • https://nutrishop.in/ci/userfiles/files/65861837287.pdfIn PDF document text
  • https://twinscooking.nl/twins/userfiles/file/83127476775.pdfIn PDF document text
  • http://eichler-kammerer.de/4116614828.pdfIn PDF document text
  • http://it-hair.com/userfiles/73327664541.pdfIn PDF document text
  • http://clinicaveterinariacittadivignola.com/userfiles/files/pikopawisanimamugeja.pdfIn PDF document text
  • https://www.groupe-coelho.fr/ckfinder/userfiles/files/mepajotupatamu.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=how+to+stop+popping+ads+on+my+phonePDF 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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