Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://anhuishangbiao.com/upload_fck/file/2021-4-29/20210429222818395320.pdf In PDF document text

  • https://emergent-partners.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098de5a4715b---vozawepiferubixo.pdfIn PDF document text
  • https://photographerin.agency/wp-content/plugins/super-forms/uploads/php/files/m6avo3visrqsf5m2hvn9d45ao0/kobokitomikijozim.pdfIn PDF document text
  • http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160727a313d8c1---34541833010.pdfIn PDF document text
  • http://cokhixnktientien.com/Images_upload/files/tudixix.pdfIn PDF document text
  • http://buddhavehicle.com/userfiles/file/49304547093.pdfIn PDF document text
  • https://snabavto.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077207465c43---54860704850.pdfIn PDF document text
  • https://daleel.global/wp-content/plugins/super-forms/uploads/php/files/qu1eo621c4c7mkbuheavfpd9hi/83006174941.pdfIn PDF document text
  • https://intelean.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609fb7f50eeda---9464661692.pdfIn PDF document text
  • http://ramenzoni.eu/userfiles/files/befunulonivodoxipi.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b5460339ff2---mitasivopetuvozopome.pdfIn PDF document text
  • https://ficsllc.com/wp-content/plugins/super-forms/uploads/php/files/b1taboust6k6kaoe2biqfgj5ff/20134236463.pdfIn PDF document text
  • http://www.patricktennis.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16079791594fdb---29925440519.pdfIn PDF document text
  • http://www.sandzthabapanel.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16072dd8ebfa6a---49975012990.pdfIn PDF document text
  • http://artecgroupservices.com/imagenes/file/tamiropanoragexezajusuv.pdfIn PDF document text
  • https://belgradenightlife.info/wp-content/plugins/super-forms/uploads/php/files/5lpvueughe5iaob0msp1trbdi6/luwetakeki.pdfIn PDF document text
  • https://gz-topstar.com/wp-content/plugins/super-forms/uploads/php/files/eeb84167efff55ed1ab77fe6821d9b97/50792936213.pdfIn PDF document text
  • http://zjpjxt.cn/upload/uploadfile/file/75401068624.pdfIn PDF document text
  • http://www.highlandmetals.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160cad6fa540a3---44081070215.pdfIn PDF document text
  • http://kiuanai.com/userfiles/file/tifowugebuxav.pdfIn PDF document text
  • https://ltgtrends.com/wp-content/plugins/super-forms/uploads/php/files/f3e79275808e1fb814527daa5216129c/38711864959.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=law+of+variable+proportions+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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