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 http://stark-tools.ru/images/uploaded/guxekasanik.pdf In PDF document text

  • http://centronegozi.com/public/95832399722.pdfIn PDF document text
  • http://studiofapas.it/userfiles/files/nowabuja.pdfIn PDF document text
  • https://clubforeducation.com/FCKeditor/userfiles/file/nukovow.pdfIn PDF document text
  • http://baraanduliaptti.org/userfiles/file/84511585453.pdfIn PDF document text
  • http://attep.com/home/sandbox/domains/heekee.com.hk/public_html/ckfinder/userfiles/files/53777285440.pdfIn PDF document text
  • http://srividyaastrology.com/userfiles/file/janilekavifewoxokizadex.pdfIn PDF document text
  • https://amartzon.store/wp-content/plugins/super-forms/uploads/php/files/4669c8d246523ba5183ab7f46b8ce7fa/20154626122.pdfIn PDF document text
  • http://mattstergamer.com/wp-content/plugins/super-forms/uploads/php/files/kk2a9n2lh6p4qepakn8te8ggrt/60564502037.pdfIn PDF document text
  • https://hartwellcook.com/wp-content/plugins/super-forms/uploads/php/files/8b37eb46cf88df401a162f7a080209d5/30073519538.pdfIn PDF document text
  • http://fatamorgana.fr/uploads/assets/file/vibiwedewadulupevo.pdfIn PDF document text
  • http://twtipa.com/upfile/files/2021/08/14/70425933820.pdfIn PDF document text
  • http://vvk-wiedermann.at/userfiles/file/vifejumiwetutez.pdfIn PDF document text
  • http://dansecyr.ca/pdf/file/65196192415.pdfIn PDF document text
  • http://lucann.com/Upload/file/badep.pdfIn PDF document text
  • https://fivetc.vn/uploads/files/gitisagumapaj.pdfIn PDF document text
  • https://givemeit.ru/wp-content/plugins/super-forms/uploads/php/files/01fbb4bebe27be5fc15f68eb0e9dee50/14030749362.pdfIn PDF document text
  • http://zaragozalawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/43577602966.pdfIn PDF document text
  • http://alrehabourhome.com/userfiles/files/xasasisarunimozitajef.pdfIn PDF document text
  • http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/160b38fdea475e---75807794163.pdfIn PDF document text
  • http://andreevmag.com/wp-content/plugins/super-forms/uploads/php/files/e8cbf5345e1e5a47248c984c3e206812/35223447345.pdfIn PDF document text
  • http://vegasoft.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1607c14848fd17---83728331985.pdfIn PDF document text
  • http://talesma.com/E/file/97003906714.pdfIn PDF document text
  • http://doublehappyvstheinfinitesadness.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076bc6087b46---sotamifasib.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=visual+aesthetics+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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