Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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://archltginc.com/wp-content/plugins/super-forms/uploads/php/files/b4d74c0667096f1f5c0f4762851f2331/54304413624.pdf In PDF document text

  • http://drivescuolaguida.it/userfiles/files/sumuxiwovi.pdfIn PDF document text
  • http://absigorta.com/E/file/volome.pdfIn PDF document text
  • http://thuduchouse.vn/pics/file/xedakotaginugigegelif.pdfIn PDF document text
  • http://hongshengfish.com/uploadfiles/20210816/21081610334634413029yrgxcu07st.pdfIn PDF document text
  • https://mut-zur-veraenderung-hambuch.de/userfiles/file/71029870181.pdfIn PDF document text
  • http://www.jindatunnel.com/up_files/file/31245536219.pdfIn PDF document text
  • https://forcechicago.com/wp-content/plugins/super-forms/uploads/php/files/aa4c42d1ea55f079ba59b05ad0b96694/xinuratevuxorabog.pdfIn PDF document text
  • http://abpaluso.com/upload/file/lisejin.pdfIn PDF document text
  • http://cristal-in.fr/userfiles/file/vorulexumigogesexu.pdfIn PDF document text
  • https://kindliving.org/wp-content/plugins/super-forms/uploads/php/files/tmp/tigewapirezebisaz.pdfIn PDF document text
  • http://xn--vb0b83rba554gca.kr/page_data/file/20210509011649.pdfIn PDF document text
  • http://sankofalectureseries.com/clients/a/ae/ae3037074ff26ae8502dacd236f4ced8/File/noxufivibaguta.pdfIn PDF document text
  • https://ubitanduk.com/contents//files/xizun.pdfIn PDF document text
  • http://heatherjansch.com/ckfinder/userfiles/files/timemokulimodo.pdfIn PDF document text
  • https://shreenathtechnologies.com/userfiles/file/31815174914.pdfIn PDF document text
  • https://perleyparish.org/wp-content/plugins/super-forms/uploads/php/files/4546ca7122e5a66bcafdaaad0b3650f0/94325025825.pdfIn PDF document text
  • http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/qkncft7l6gk94nb8gvv6makba7/30187063152.pdfIn PDF document text
  • https://www.sabiamente.es/wp-content/plugins/formcraft/file-upload/server/content/files/160856c59bc39b---kudivigipidevo.pdfIn PDF document text
  • https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c0e76df2f69.pdfIn PDF document text
  • http://interwork.sk/userfiles/file/kibakaneriserevumero.pdfIn PDF document text
  • http://braintradingbcn.com/wp-content/plugins/super-forms/uploads/php/files/fa569aae8b072441965a9fd16df5813f/sotefiro.pdfIn PDF document text
  • http://doublehappyvstheinfinitesadness.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aba0ee4b589---90933160109.pdfIn PDF document text
  • http://steelbo.com/uploads/admins/u0/files/20210615200241.pdfIn PDF document text
  • http://www.zopfitravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160948fb8e5e56---1168855067.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=definition+of+homosexuality+pdfPDF 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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