Malicious PDF — malware analysis report

Heuristics 7

• 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.
• 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://bf-pomosch.ru/wp-content/plugins/super-forms/uploads/php/files/tb7sgji0112pmtskm59gvnsmt0/73223457271.pdf In PDF document text

  • https://www.arphplumbing.co.uk/wp-content/plugins/super-forms/uploads/php/files/i7q91pt0rugquch83am00msi8m/zejafapofixojen.pdfIn PDF document text
  • http://vitrine-prof.com/files/44282317991.pdfIn PDF document text
  • https://egyiksem.hu/uploads/file/78866455984.pdfIn PDF document text
  • https://www.apartamentselsllacs.com/wp-content/plugins/super-forms/uploads/php/files/ehbpvt0toq4h6a40aguu5c3mrs/72794397048.pdfIn PDF document text
  • https://www.penyembuhanholistikreiki.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e1e627ebe2---nabefepivamuzipekovi.pdfIn PDF document text
  • https://ppuhperspektywa.pl/files/edytor/file/kuzerisok.pdfIn PDF document text
  • http://braintradingbcn.com/wp-content/plugins/super-forms/uploads/php/files/22eb9302a17cadb6ad017850545c272b/93747356160.pdfIn PDF document text
  • https://rubyyadav.com/nbloom/fckuploads/file/miwabexuf.pdfIn PDF document text
  • https://www.formwork.co.uk/wp-content/plugins/super-forms/uploads/php/files/vkrajimilg3odcgghjaag3p9na/siwajenaxoni.pdfIn PDF document text
  • http://mujuerp.com/uploads/ckeditor/files/20210528210333.pdfIn PDF document text
  • https://hoangnhataudio.vn/media/files/84888397134.pdfIn PDF document text
  • https://miamiuniquelimo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bbaceb40f1f---78896003481.pdfIn PDF document text
  • https://www.andrecampbell.ca/wp-content/plugins/super-forms/uploads/php/files/ecf13faecd85ca09fcb8bef7dc654e90/rexezeresusebuwirub.pdfIn PDF document text
  • https://gpuhub.net/wp-content/plugins/super-forms/uploads/php/files/6qrd6rdj9e37tfpfh0rnoa66ug/lujogos.pdfIn PDF document text
  • https://prawobrzeze.info/userfiles/file/41032812868.pdfIn PDF document text
  • https://perfecthospitals.com/ckfinder/userfiles/files/28349824049.pdfIn PDF document text
  • http://stl-hk.net/userfiles/siwodotutavijizifed.pdfIn PDF document text
  • http://adamlegal.com/userfiles/file/13641053865.pdfIn PDF document text
  • https://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9f64fb7703---36923450288.pdfIn PDF document text
  • http://519pf.com/userfiles/files/ponugufilisuzugapipi.pdfIn PDF document text
  • http://veterinarioassociatopacinidallatorre.eu/userfiles/files/51679264485.pdfIn PDF document text
  • http://optimus.org.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608b41f740354---53714296746.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=comprehension+for+6th+classPDF 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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