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://marugame.hk/editor_upload/file/kinifus.pdf In PDF document text

  • https://alexandrapanayotou.com/web/images/static/file/31935268800.pdfIn PDF document text
  • http://morenoroofing.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138cdb5789d2---figatufafaposesipug.pdfIn PDF document text
  • http://bacvietexpress.com/upload/userfiles/files/94295253765.pdfIn PDF document text
  • http://ilturismoinitalia.it/userfiles/files/pimotuvevijadewidi.pdfIn PDF document text
  • http://princeworldwide.com/multimedia/userfiles/file/dokuraseb.pdfIn PDF document text
  • http://huichem.com/ckfinder/userfiles/files/ruvubejuz.pdfIn PDF document text
  • https://elesud.it/img_pagine/file/81954643427.pdfIn PDF document text
  • https://polinagerz.ru/wp-content/plugins/super-forms/uploads/php/files/64sgr3uq6pjfufnorlo98u58m5/80842421485.pdfIn PDF document text
  • https://jeneifogaszat.hu/cikkdata/files/wujexe.pdfIn PDF document text
  • http://nanumed.ro/uploads/files/nuxavojofozuvoses.pdfIn PDF document text
  • https://frennphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/161420211b152e---17752643631.pdfIn PDF document text
  • https://livres-arts.com/ckfinder/userfiles/files/rojonazexugitegux.pdfIn PDF document text
  • https://99shayari.in/userfiles/files/ranov.pdfIn PDF document text
  • http://elskup.pl/images/assets/file/pixubepovixawede.pdfIn PDF document text
  • http://dainichiji.com/upload_ckr/files/76209219234.pdfIn PDF document text
  • https://www.urban-quartz.co.uk/wp-content/plugins/super-forms/uploads/php/files/cd97a293117357a8f5cdb12f5c1ac02d/34143828439.pdfIn PDF document text
  • https://kmkmekanik.com/upload/ckfinder/files/rivarita.pdfIn PDF document text
  • http://shijijiaming.net/filespath/files/20210908171900.pdfIn PDF document text
  • http://anpo.vn/upload/files/89570766090.pdfIn PDF document text
  • http://mail-business.ru/uploads/file/22829088499.pdfIn PDF document text
  • https://supportsystemsvainc.com/home/ssvi/public_html/ckfinder/userfiles/files/jazipitukunu.pdfIn PDF document text
  • http://hani-bee.com/userfiles/files/93968037577.pdfIn PDF document text
  • http://plechotice.sk/tmp/file/36755296233.pdfIn PDF document text
  • http://studiomedicoveterinariobellucci.eu/userfiles/files/71286459768.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=digos+city+postal+codePDF 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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