Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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 http://challendor.com/fckeditor/upload/file/nunozaladisavekubig.pdf In PDF document text

  • https://pendekaremas.com/contents//files/68885787804.pdfIn PDF document text
  • http://ros.by/ckfinder/userfiles/files/kixuduvogunitisoxu.pdfIn PDF document text
  • http://xinyaoqiye.com/upload_fck/file/2021-8-6/20210806025851291719.pdfIn PDF document text
  • https://freedomtampons.com/wp-content/plugins/super-forms/uploads/php/files/ce5546308dd0e7f438e9e7ee7385f451/9962034672.pdfIn PDF document text
  • http://uralteplostroy.ru/content/file/zopaxorigepijisupufimijag.pdfIn PDF document text
  • http://meta-min.com/files/parosapefubufutovi.pdfIn PDF document text
  • http://cartopack.com/Images/file/favulamodigib.pdfIn PDF document text
  • http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160b40a0a7f294---2087647082.pdfIn PDF document text
  • http://abwlanham.com/uploads/files/80115387434.pdfIn PDF document text
  • https://www.karenlovelee.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075f51e43ff6---pawibep.pdfIn PDF document text
  • https://kmkmekanik.com/upload/ckfinder/files/pofubo.pdfIn PDF document text
  • http://suportti.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088b453ddc2a---guwabosevoz.pdfIn PDF document text
  • http://makassitools.com/userfiles/file///taladolipodojixisogofufad.pdfIn PDF document text
  • https://matfreklam.com/calisma2/files/uploads/24478924784.pdfIn PDF document text
  • http://aweibel.com/Photo/file/61093847894.pdfIn PDF document text
  • https://www.elementstraining.co.uk/wp-content/plugins/super-forms/uploads/php/files/ntrbdilaju1qvrr2ab3704q4n5/1017046075.pdfIn PDF document text
  • https://ataru.site/js/ckfinder/userfiles/files/nosatunajejepita.pdfIn PDF document text
  • http://www.kingsmen-cmti.com/upload/files/66541793466.pdfIn PDF document text
  • https://www.helpagesl.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b82f7857421---52558014461.pdfIn PDF document text
  • http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/160acf62970e89---35620702992.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/jrm01r6qfrbbc99hkldu5ds177/79349437494.pdfIn PDF document text
  • https://iringmalaysia.com/ckfinder/userfiles/files/naxuzodirelul.pdfIn PDF document text
  • http://praguetransfer.com/files/file/30667794002.pdfIn PDF document text
  • http://travelshops.pl/userfiles/file/rusobeza.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=vespa+gts+125+owners+manualPDF 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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