Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Urgency / deadline lure low SE_URGENCY_LURE
  Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
• 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://gennarimaq.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16073fe7714b18---21039906173.pdf In PDF document text

  • http://countrysquirefoods.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088082f6872e---41836785355.pdfIn PDF document text
  • http://candientushinko.com/images/file/9864988715.pdfIn PDF document text
  • http://creative-format.com/upload/editor/files/37303776093.pdfIn PDF document text
  • http://samtekelektrik.com/files/69176954240.pdfIn PDF document text
  • http://cocoal.com/uploads/file/35540688575.pdfIn PDF document text
  • https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/ba4156ce73379751cd17d809cc3713c4/jozesaxeto.pdfIn PDF document text
  • http://thm-holding.ru/wp-content/plugins/super-forms/uploads/php/files/7c8dcb39df122f8ecccb2ee8d6bebd1e/46431351143.pdfIn PDF document text
  • https://www.vedaaz.com/wp-content/plugins/super-forms/uploads/php/files/a9d50e3bcc508b834cb99b42c91ed1cc/50327894691.pdfIn PDF document text
  • https://vinisfarm.com/wp-content/plugins/super-forms/uploads/php/files/597c299c0ef116d4176cd1dd7d534ce4/84130516376.pdfIn PDF document text
  • http://sowitech.vn/upload/files/13008776884.pdfIn PDF document text
  • https://bibliotheque-des-arts.ch/ckfinder/userfiles/files/48587159430.pdfIn PDF document text
  • https://eandjfamilyhealthcenter.com/wp-content/plugins/super-forms/uploads/php/files/0fc3bf150ac4ca59d7bb357670d56ee6/29215475779.pdfIn PDF document text
  • http://portaldo.eu/contenuti/upload/file/89433911935.pdfIn PDF document text
  • http://extintoresorigen.com/images/editor/wanovozusad.pdfIn PDF document text
  • http://lucidarepavimentimarmogenovaealessandria.it/userfiles/files/ludorixogituwojaj.pdfIn PDF document text
  • http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/1607891fc98247---wuxaw.pdfIn PDF document text
  • https://carrieres-pierre.com/userfiles/file/fozopofodizolalofasivotiw.pdfIn PDF document text
  • https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160cb927985c66---gafajuva.pdfIn PDF document text
  • http://banglatalkies.com/dynamic-images/cms/file/32074927076.pdfIn PDF document text
  • https://www.americanapi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e4693bc2f3---lekuzuzebefazepufuvi.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=payment+plan+agreement+letterPDF 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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