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 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://synerhu.ru/uplcv?utm_term=walpole+myers+probability+%26+statistics+8th+pdf PDF link annotation

  • http://cuborh.com/natelinhanew/js/ckfinder/userfiles/files/37600627623.pdfIn PDF document text
  • http://mppscstudy.com/admin/usercontent/file/4743657707.pdfIn PDF document text
  • http://abwlondonblvd.com/uploads/files/xemoxepasotodelalewo.pdfIn PDF document text
  • https://catherinehourihan.art/wp-content/plugins/super-forms/uploads/php/files/e01f1998451e1159b9c81961e4bcf7bf/23217548785.pdfIn PDF document text
  • https://cfi-registration.org/buzzboxgift/img/userfiles/files/tetugajitamuvope.pdfIn PDF document text
  • https://greshamgilessalon.com/wp-content/plugins/super-forms/uploads/php/files/783f87556353662d45d0414a21c3984d/22133951878.pdfIn PDF document text
  • https://a5productions.com/home/a5pro/public_html/ckfinder/userfiles/files/lujejanedadubine.pdfIn PDF document text
  • http://www.wiz-fac.com/uploadImg/file/dososomoxuwogijazuvin.pdfIn PDF document text
  • http://oawebserver.com/piceditor/file/66391042541.pdfIn PDF document text
  • http://www.ferm-matic.fr/upload/file/91820845989.pdfIn PDF document text
  • https://brylka-kfz.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a122cc84d2b---zimevuzobogurufisadivoka.pdfIn PDF document text
  • http://www.circoloaletrium.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607a7bf9b03fe---bulexu.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160be72e36c1fb---xufaweloza.pdfIn PDF document text
  • https://alnahamgroup.com/userfiles/file/kexizuf.pdfIn PDF document text
  • http://vinmexindia.com/uploads/93360322148.pdfIn PDF document text
  • https://sharenkon.com/files/xozuperuk.pdfIn PDF document text
  • https://cometsecurity.in/admin/userfiles/file/91892802271.pdfIn PDF document text
  • http://hnc2.com/userfiles/file/12098628476.pdfIn PDF document text
  • http://yilip.net/userData/board/file/baseramorosaluraje.pdfIn PDF document text
  • https://kvgrup.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/16086eba6c99b9---rivibodebokipod.pdfIn PDF document text
  • http://hitecds.com/userfiles/file/88580481502.pdfIn PDF document text
  • http://mexvp.com/ckfinder/userfiles/files/54466825042.pdfIn PDF document text
  • http://lbs.ac.at/wp-content/plugins/super-forms/uploads/php/files/kv9k0k9dnjugghl0m5m21uutbo/rikabojutijejinawajufu.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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