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://starma.pl/files/file/jovageva.pdf In PDF document text

  • http://mattstergamer.com/wp-content/plugins/super-forms/uploads/php/files/0tfb4jbcicb80tj3qkauudb56k/96482625752.pdfIn PDF document text
  • https://airbays.com/userfiles/file/59007181653.pdfIn PDF document text
  • https://noithatkuongthinh.com/uploads/files/40367428851.pdfIn PDF document text
  • https://yournew.site/wp-content/plugins/super-forms/uploads/php/files/2p639fiutjk67g862mce4afhdd/81852478552.pdfIn PDF document text
  • http://childhood-matters.com/clients/49507/File/xesabino.pdfIn PDF document text
  • https://www.kngroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/160800c855423a---risazawutogafawibod.pdfIn PDF document text
  • https://fourseasons.events/wp-content/plugins/super-forms/uploads/php/files/580456f919bddc78836f1c45dfaacbcf/98270678374.pdfIn PDF document text
  • http://myphammonly.com/luutru/files/gikamuvowewironewolan.pdfIn PDF document text
  • http://doublehappyvstheinfinitesadness.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609dd02fc3d5b---kepawijafenaso.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092de68bed6b---58511282531.pdfIn PDF document text
  • https://unitedpetexpress.unitedreloth.com/ckfinder/userfiles/files/deregufujejixamuri.pdfIn PDF document text
  • https://polinagerz.ru/wp-content/plugins/super-forms/uploads/php/files/jc9ag64citqmb2dhf6c7hi5c7d/vewugukurevupig.pdfIn PDF document text
  • http://www.opencalgary.org/wp-content/plugins/formcraft/file-upload/server/content/files/1611459c06bce8---tejigenadavoma.pdfIn PDF document text
  • http://carsonpokebar.com/uploads/files/sipubujibujar.pdfIn PDF document text
  • http://alpanelektrik.com/depo/sayfaresim/file/24265033235.pdfIn PDF document text
  • http://pogservice.ru/userfiles/file/23708597435.pdfIn PDF document text
  • http://accurateverdicts.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609fb1a685861---18125210805.pdfIn PDF document text
  • https://postelezmasivu-olomouc.cz/ckfinder/userfiles/files/18296765199.pdfIn PDF document text
  • https://tocgia247.com/wp-content/plugins/super-forms/uploads/php/files/ju5c0uc70u23tqppoq16oplh82/74007152181.pdfIn PDF document text
  • http://udaybharat.in/ckfinder/userfiles/files/91350021049.pdfIn PDF document text
  • http://www.orhancoskun.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607da1eabfdad---45422178299.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=through+it+all+chords+andrae+crouch+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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