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 http://thegioichuyendong.info/app/webroot/upload/files/73541731486.pdf In PDF document text

  • http://fsf-vastroad.com/userfiles/file/33540450389.pdfIn PDF document text
  • https://www.keystonecare.co.uk/wp-content/plugins/super-forms/uploads/php/files/8e616fb43540af2917eebaf69d4eeeae/divivoxijebula.pdfIn PDF document text
  • https://kvartira-zalog.ru/wp-content/plugins/super-forms/uploads/php/files/d7583f6a17765a519bc240776af0de3f/puzotew.pdfIn PDF document text
  • http://le-lemniscus-incandescent.fr/ckeditor/upload/files/37812194315.pdfIn PDF document text
  • https://www.harnoordesigns.com/wp-content/plugins/super-forms/uploads/php/files/c5762fea8162b9f7e259eddf14c9b4d9/vibawidagutamudokowuxofa.pdfIn PDF document text
  • http://kperrylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/8216306506.pdfIn PDF document text
  • https://www.dyna-tech.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1614150776f211---82416555377.pdfIn PDF document text
  • https://arabadvertise.com/userfiles/files/4100391950.pdfIn PDF document text
  • http://ambulatorioveterinariocigliano.com/userfiles/files/lodir.pdfIn PDF document text
  • http://www.yemany.com/yemfiles/files/lefezibaguzoraledovizozi.pdfIn PDF document text
  • http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/211276f0905210ea7b8a605e38ac63eb/68203327988.pdfIn PDF document text
  • http://youngshiny.com/userfiles/file/1633003593.pdfIn PDF document text
  • http://centromp.it/userfiles/files/pilituvas.pdfIn PDF document text
  • http://topoint.cc/userfiles/fckFile/20211001070352.pdfIn PDF document text
  • http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613c69b98b990---71689766313.pdfIn PDF document text
  • http://likebarcode.com/image/files/20210918_020401.pdfIn PDF document text
  • https://bibliotheque-des-arts.ch/ckfinder/userfiles/files/55523932296.pdfIn PDF document text
  • https://wickedcheesy.com/images/file/15842862210.pdfIn PDF document text
  • http://angel-conference.org/upload_fck/file/2021-9-7/20210907090157123997.pdfIn PDF document text
  • http://digitalqwerty.com/ckfinder/userfiles/files/22216047878.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=where+to+find+deleted+files+in+androidPDF 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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