Malicious PDF — malware analysis report

Heuristics 7

• 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 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://vtvxm.vn/userfiles/file/78099154991.pdf In PDF document text

  • https://binhruamuinanobac.com/wp-content/plugins/super-forms/uploads/php/files/unk6om3gh8tpn9l5d65l6gmq0o/59420806503.pdfIn PDF document text
  • http://hcvitamin.com/webroot/img/files/86117927672.pdfIn PDF document text
  • https://guapa2.com/admin/fck/file/83873930481.pdfIn PDF document text
  • http://xn----8sbpvg0afdbe.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/g4obg10d985qh5ic4jtq7dru01/70783810573.pdfIn PDF document text
  • http://cosmoscm.com/contents//files/65246233874.pdfIn PDF document text
  • https://medgarlci.com/wp-content/plugins/super-forms/uploads/php/files/b018860a210c846661110d130a28692f/94717882154.pdfIn PDF document text
  • https://www.heainc.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0c5f06c415---56084321205.pdfIn PDF document text
  • http://anhuicrew.com/upload_fck/file/2021-6-1/20210601184217738164.pdfIn PDF document text
  • http://www.virtualaid.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160a6330037f31---45169937346.pdfIn PDF document text
  • http://tsg-edinstvo.ru/userfiles/file/78111171796.pdfIn PDF document text
  • http://dallapietamarchisio.it/userfiles/files/gaxufe.pdfIn PDF document text
  • http://amwordpress.org/wp-content/plugins/formcraft/file-upload/server/content/files/160afa74282c7b---58006261622.pdfIn PDF document text
  • http://victorylimo1.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084a4255fa39---jizexukimuger.pdfIn PDF document text
  • http://brno-skoleniridicu.cz/ckfinder/userfiles/files/zajulimevo.pdfIn PDF document text
  • http://roanfamily.net/clients/0/01/01b24a6c100194bbc8678883f3cd4a53/File/92254304686.pdfIn PDF document text
  • https://saam.vn/images/content/file/tasitenelodenop.pdfIn PDF document text
  • http://hnspkjx.com/d/files/36068403429.pdfIn PDF document text
  • http://energo-market.ru/sadm_files/dofezid.pdfIn PDF document text
  • http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16076caa9029b0---55736086958.pdfIn PDF document text
  • http://pavcargo.ru/wp-content/plugins/super-forms/uploads/php/files/987fe2c7b801092aec8887f6c00a7626/20068552184.pdfIn PDF document text
  • https://www.gsccn.it/wp-content/plugins/formcraft/file-upload/server/content/files/16086b86269bf9---fobotonuzadofem.pdfIn PDF document text
  • https://www.beachesbrewing.com/wp-content/plugins/super-forms/uploads/php/files/080957bd98ad96cfec83971f5c2aacbf/fapewoniv.pdfIn PDF document text
  • http://www.training4thefuture.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a0296b8c21e---465268072.pdfIn PDF document text
  • http://bsa.by/ckfinder/userfiles/files/98206522869.pdfIn PDF document text
  • https://autosaloncenter.com/uploads/file/68830157786.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=how+to+install+plugins+on+a+minecraft+serverPDF 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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