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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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 https://crewmak.ru/uplcv?utm_term=twitter+codes+for+skyscraper+tycoon+2021 PDF link annotation

  • https://www.frontierexim.com/wp-content/plugins/super-forms/uploads/php/files/e0573t04nj13j4clbusatohhnn/32041052506.pdfIn PDF document text
  • https://lucky-erotic-massage-bucharest.ro/ckfinder/userfiles/files/45293021780.pdfIn PDF document text
  • http://ackerviewguesthouse.com/userfiles/file/37775045198.pdfIn PDF document text
  • http://chicagohalo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607db16c59408---33453886216.pdfIn PDF document text
  • http://syarmarka.ru/userfiles/files/zalefurakepowanadosuwa.pdfIn PDF document text
  • https://dptech.vn/uploads/files/18010785346.pdfIn PDF document text
  • http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160a8341d1a968---96796806035.pdfIn PDF document text
  • http://humanitool.ru/userfiles/file/87623382145.pdfIn PDF document text
  • http://tktravel.shop/FileData/ckfinder/files/20210603_3054CBC4DE7CEA9E.pdfIn PDF document text
  • http://www.pointcookelectrician.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160d28055e52fa---58939371817.pdfIn PDF document text
  • https://loskutova.site/wp-content/plugins/super-forms/uploads/php/files/68fd32de860af0a0b081751261d688cb/23540761190.pdfIn PDF document text
  • https://www.horisunmauritius.com/wp-content/plugins/super-forms/uploads/php/files/01d9f3c61e96d2717c15e57934c7f36a/93010333048.pdfIn PDF document text
  • https://mudateconmigo.cl/wp-content/plugins/super-forms/uploads/php/files/c45ba5493eb15f36305efcc3cff2b62c/56914037676.pdfIn PDF document text
  • https://clubsecurite.fr/webroot/upload/files/51893533762.pdfIn PDF document text
  • https://vestol.bg/files/file/daweri.pdfIn PDF document text
  • http://lyzebrno.cz/userfiles/file/72837835187.pdfIn PDF document text
  • https://itacademyindia.com/ckfinder/userfiles/files/41976810870.pdfIn PDF document text
  • https://epos.nu/ckfinder/userfiles/files/80589298998.pdfIn PDF document text
  • http://infinijewelry.com/userfiles/file/kilin.pdfIn PDF document text
  • https://cafeau1ait.xyz/js/ckfinder/userfiles/files/57941558966.pdfIn PDF document text
  • http://heyibnb.com/CKEdit/upload/files/76796690231.pdfIn PDF document text
  • http://principessavencanice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b437fa0835---24191513370.pdfIn PDF document text
  • http://myphamlulanjina.com/upload/files/nodufaxojujuwogejadavukaf.pdfIn PDF document text
  • https://www.sacproblemleri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160af5d069c103---33240082069.pdfIn PDF document text
  • http://www.catedralirodahaz.hu/data/editorfile/14960251864.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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