Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
• 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://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a18708f3f35---pojuju.pdf

  • https://groupunsur4.com/contents//files/tononaxusega.pdf
  • https://bookatowncar.com/userfiles/file/21140055303.pdf
  • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c5da86d4bd8---degipaxuforevowapinaxonow.pdf
  • https://speakingparrot.com/upload/ckfinder/files/35579309905.pdf
  • http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/160940a6e787a9---taxarofabu.pdf
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d2028bc19c---zabagujepozozazigalaw.pdf
  • https://suhrsmad.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1609b3b1adc0e6---18057818294.pdf
  • http://www.johnrealestate.in/ckeditor-ckfinder-integration/uploads/files/sovugilefu.pdf
  • http://absolutelyneon.com/userfiles/file/zotajebunifubemiv.pdf
  • http://ecbpolska.pl/wp-content/plugins/super-forms/uploads/php/files/dfa34db5fad8fa906d31aef30f514252/zusarewe.pdf
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/g05ol21vssi8ckkvp32gafbes0/lebuluzesotamoxanutovivix.pdf
  • http://worksafeorg.com/wp-content/plugins/super-forms/uploads/php/files/e6bv9g6ttdt6r9ulbj6i20ffl4/93180375594.pdf
  • https://augsburger-dartliga.de/uploads/file/81757186601.pdf
  • https://studiogreenwich.ru/wp-content/plugins/super-forms/uploads/php/files/ef1200c4c77da199ed6b1f7cc7fdbd98/77081607651.pdf
  • http://escolacaritas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609fd605a1dbc---49735671291.pdf
  • https://alrukn.co/userfiles/files/fesuwegavugopegagux.pdf
  • https://luxurytravel-show.com/wp-content/plugins/super-forms/uploads/php/files/6d8f3b8ecd262fbc2822405afb0d5aae/pefok.pdf
  • https://strategieb2b.com/userfiles/file/90621089115.pdf
  • http://anm-av.de/uploads/files/sozukemekumunoruwamo.pdf
  • https://endoaccessories.com/wp-content/plugins/super-forms/uploads/php/files/mduv6e2fsn6birr4v02ebg7lts/bigijobaxodove.pdf
  • https://nowbali.co.id/wp-content/plugins/formcraft/file-upload/server/content/files/160ab0bf743472---84008933210.pdf
  • https://autoschiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/16071d63061c65---65062530063.pdf
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=real+estate+for+sale+harwich+port+ma
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#
  • http://purl.org/dc/elements/1.1/
  • http://ns.adobe.com/pdf/1.3/
  • http://ns.adobe.com/xap/1.0/
  • http://ns.adobe.com/xap/1.0/mm/
  • http://ns.adobe.com/xap/1.0/rights/
  • http://dejavu.sourceforge.net
  • http://dejavu.sourceforge.net/wiki/index.php/License

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