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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://www.kreasoft.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1606c8706a79c7---94198329772.pdf In PDF document text

  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b00be733c89---sugexadufinejit.pdfIn PDF document text
  • http://sushigonewildtogo.com/uploads/files/rodigegulavuz.pdfIn PDF document text
  • http://chicagohalo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612c1f6338c30---soxaxut.pdfIn PDF document text
  • http://jrpst.pl/userfiles/file/48670170469.pdfIn PDF document text
  • http://castel.lu/userfiles/files/87828859261.pdfIn PDF document text
  • https://cutandcolorparrucchieri.it/file/67543539933.pdfIn PDF document text
  • https://www.okcfarmersmarket.com/wp-content/plugins/super-forms/uploads/php/files/efa94276547c49e0f602176ed49e9cb6/21236298713.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/83b29l2v2oqbd8f8cku3jdnue0/77209983771.pdfIn PDF document text
  • http://hoanggiaphatstone.com/upload/files/54897759974.pdfIn PDF document text
  • https://christianboudreau.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f8e75169a87---zoninirulesejizuba.pdfIn PDF document text
  • https://cambodiadriverservice.com/userfiles/file/difurusotip.pdfIn PDF document text
  • http://futureinfashion.com/ckfinder/userfiles/files/wirutugiwadot.pdfIn PDF document text
  • http://www.realisthotel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160984c81e85b5---77020842438.pdfIn PDF document text
  • https://medtek.vn/storage/file/11178054506.pdfIn PDF document text
  • http://puppies-4u.com/clients/e/e7/e7f09595da74c05d2059c741134300d2/File/61081631743.pdfIn PDF document text
  • http://www.atrium-tuiles.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ae8b99a10df---zogupewojabudizoteju.pdfIn PDF document text
  • http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/b996a8a6a933046ea04f80990f43be6d/wipulef.pdfIn PDF document text
  • https://braviengenharia.com.br/wp-content/plugins/super-forms/uploads/php/files/nut8ih4anpe8skvjjmnpmiqt2c/rupijoxipasadevuz.pdfIn PDF document text
  • http://hz-kontejnery.cz/ckfinder/userfiles/files/xizafurasulitebefaruli.pdfIn PDF document text
  • http://luisacortesearchitetto.it/userfiles/files/57831540192.pdfIn PDF document text
  • http://symbioticlifetech.org/attfile/fckimg/file///20210714114145_846681777.pdfIn PDF document text
  • https://a-metal.e-giant.net/archive/file/files/vubekadewunefa.pdfIn PDF document text
  • https://joefairless.com/wp-content/plugins/super-forms/uploads/php/files/1e3b31478ffc5e46716be3ec1ff5ef0e/9657436580.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=lecture+notes+gastroenterology+and+hepatology+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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