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://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/160fcbd6565901---80514218596.pdf In PDF document text

  • https://www.a2zmedical.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160b37ac0b26c8---83785565127.pdfIn PDF document text
  • https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a858e56d067---66041994817.pdfIn PDF document text
  • http://unipell.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16084ef1e45e1f---8925460751.pdfIn PDF document text
  • https://bykevin.com/wp-content/plugins/super-forms/uploads/php/files/1b901d83e2b74a7ad0132f9c1f8cb2d3/90133429777.pdfIn PDF document text
  • http://mooneyes.pl/userfiles/file/64284812800.pdfIn PDF document text
  • http://nuitsdartistes.eu/images/file/87517378979.pdfIn PDF document text
  • https://www.helpfulhunks.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1609037f57635c---40971954719.pdfIn PDF document text
  • http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606d31ed3071c---vufulezugowoku.pdfIn PDF document text
  • http://doublehappyvstheinfinitesadness.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609bcab908c5b---dulanalamefudida.pdfIn PDF document text
  • https://regeneracion-capilar.com/wp-content/plugins/super-forms/uploads/php/files/701656eca916f9166dea88227e6161c5/vodijinenipimifu.pdfIn PDF document text
  • https://stewsites.com/wp-content/plugins/super-forms/uploads/php/files/e68b74ffd502d5eebcc16fa12a07b372/84913695950.pdfIn PDF document text
  • http://camonetinternational.com/files/file/56029048373.pdfIn PDF document text
  • http://gruaszarate.com/ckfinder/userfiles/files/6821235547.pdfIn PDF document text
  • http://fsf-vastroad.com/userfiles/file/92550129236.pdfIn PDF document text
  • http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/161380e95e5161---wumiwazolarodulugeweges.pdfIn PDF document text
  • https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/370c8beafb5aea1866de4b87089d8673/pijotavibukizovine.pdfIn PDF document text
  • https://jobtiara.com/files/files/48706199621.pdfIn PDF document text
  • https://churchosonline.com/wp-content/plugins/super-forms/uploads/php/files/3c2b35ff673c661fdc301e05f62589ae/45366297262.pdfIn PDF document text
  • http://rezidencianestor.sk/app/webroot/files/ckeditor/files/69470963853.pdfIn PDF document text
  • https://securitydm.rs/slicice/file/16881373256.pdfIn PDF document text
  • http://studiogeologicotrilobite.com/userfiles/files/56118284375.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=fonctionnement+demarrage+etoile+triangle+un+sens+de+marche+pdfPDF link annotation
  • http://perfecturology.cafe24.com/upload/editor/imagefile/xeturisikaxabi.pdfIn PDF document text
  • 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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