Malicious PDF — malware analysis report

Heuristics 6

• 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 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://www.kiteschule-kiel.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607beadbb48fb---ferebopijolizironewisuju.pdf In PDF document text

  • http://orchid-daikanyama.com/userfiles/file/17019475209.pdfIn PDF document text
  • http://change-sexy.com/files/files/98158256216.pdfIn PDF document text
  • https://edusfera.pl/upload/file/1558635244.pdfIn PDF document text
  • http://aardbeienfeesten.nl/uploadimages/files/mapar.pdfIn PDF document text
  • http://luatsutiengtrung.com/app/webroot/uploads/files/75764891179.pdfIn PDF document text
  • https://youkuvpn.com/upload/files/25341631782.pdfIn PDF document text
  • https://asthasupermarket.com/userfiles/file/lasitiwidunitajisufulugoz.pdfIn PDF document text
  • http://bakoca.hu/files/file/79316037616.pdfIn PDF document text
  • http://security-m.jp/tool/images/file/98386218684.pdfIn PDF document text
  • https://event-connections.net/wp-content/plugins/formcraft/file-upload/server/content/files/16090bf5d09248---25675843068.pdfIn PDF document text
  • https://noriupapildu.lt/ckfinder/userfiles/files/nekagosagomuzidilimazex.pdfIn PDF document text
  • http://dtmaso.com/public_html/Imagens/file/kezexelagidajojikod.pdfIn PDF document text
  • http://irths.com/upload_files/files/38253730432.pdfIn PDF document text
  • http://www.radiopopiatej.com/wp-content/plugins/formcraft/file-upload/server/content/files/16124d5e020ae5---kizivabasaletefezapokofav.pdfIn PDF document text
  • https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/019c403d8ee163a8eb0d0f9ff82229eb/63759950250.pdfIn PDF document text
  • http://baliretreatcenter.com/olabali_ci/media/images/newsfiles/timekonurasipunekipi.pdfIn PDF document text
  • http://learningkey.org/userfiles/sukorurogoremageb.pdfIn PDF document text
  • https://mkycc4.com/kycc4.com/userfiles/files/28914350230.pdfIn PDF document text
  • http://aelma.com/sites/default/userfiles/file/soxosakozipitirovufo.pdfIn PDF document text
  • https://dermo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609dd19debe3c---tomapukovisi.pdfIn PDF document text
  • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b31660698c2---wewelififumenewiginix.pdfIn PDF document text
  • http://www.loicadesacavem.pt/wp-content/plugins/formcraft/file-upload/server/content/files/16098d9d2456c1---17952080315.pdfIn PDF document text
  • http://quickfix-poland.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a23937b40b---53794891944.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=every+orthogonal+matrix+is+invertiblePDF 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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