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 http://kasaitogo.com/uploads/files/24715422883.pdf In PDF document text

  • http://xn--9i1b14lzokxjcrti5um.com/upload/fckeditor/file/81803158461.pdfIn PDF document text
  • https://bustotoronto.com/userfiles/file/lujidosinazavovekinavid.pdfIn PDF document text
  • https://sensormaticltd.com/app/templates/js/ckfinder/userfiles/files/sovifaferok.pdfIn PDF document text
  • http://daliangluyinpeng.com/userfiles/file/29061044880.pdfIn PDF document text
  • http://imbirimbir.ru/files/4851067099.pdfIn PDF document text
  • https://saigonservices.vn/images/uploads/files/70007006071.pdfIn PDF document text
  • https://www.karelo.com/uploads/File/welerewet.pdfIn PDF document text
  • http://kamerton.nl/clientfiles/nizeparodoziloz.pdfIn PDF document text
  • https://uzmanwebci.com/calisma2/files/uploads/61135060690.pdfIn PDF document text
  • http://www.village-gaulois.org/gestion/ckfinder/userfiles/files/gudawixenuxaxotivasojub.pdfIn PDF document text
  • http://www.loicadesacavem.pt/wp-content/plugins/formcraft/file-upload/server/content/files/1617a41de4b1e5---98548798084.pdfIn PDF document text
  • https://vnjhanoi.com/upload/files/86198073604.pdfIn PDF document text
  • http://carraracucinecomponibilitrapani.it/userfiles/files/7561391409.pdfIn PDF document text
  • https://daqing-jewelry.com/uploads/files/202109081431212346.pdfIn PDF document text
  • https://www.carlosfunes.es/wp-content/plugins/formcraft/file-upload/server/content/files/1615bb9982a73e---rowur.pdfIn PDF document text
  • http://gtlfuelmarine.com/userfiles/file/69962009155.pdfIn PDF document text
  • https://dampinggame.com/calisma2/files/uploads/46315799174.pdfIn PDF document text
  • http://seasonsblinds.com/uploads/ckfinder/userfiles/files/63391755111.pdfIn PDF document text
  • http://www.mvdisposal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1617a2f035b65d---dudunojuzomifi.pdfIn PDF document text
  • http://shqinze.net/admin/upimg/file///43201398114.pdfIn PDF document text
  • http://norrlandet.se/userfiles/file/10112589948.pdfIn PDF document text
  • http://feedproxy.google.com/~r/MbOu/~3/Z3ufxtS7Wvw/uplcv?utm_term=square+feet+to+square+millimeterPDF 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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