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://catamma.ru/uplcv?utm_term=equations+worksheet+answers+phet+balancing+chemical+equations+simulation+answer+key PDF link annotation

  • https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/dce567d1c0624ace5d2725eaecc3a7f5/15934706200.pdfIn PDF document text
  • http://imreelectric.sk/uploads/file/31120239530.pdfIn PDF document text
  • https://samowar.ch/upload/file/toresufesixapubapobudiz.pdfIn PDF document text
  • http://escalierdurire.fr/ckfinder/userfiles/files/22698671749.pdfIn PDF document text
  • http://southportrubbish.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f1aa5954c4---kuxewogofiwosijiwikotopu.pdfIn PDF document text
  • http://dangkyidol.com/wp-content/plugins/super-forms/uploads/php/files/kudbjpeponfrkbfa8i5g0pi60o/femigasibipo.pdfIn PDF document text
  • http://www.melodypods.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fad1401c633---45828213603.pdfIn PDF document text
  • https://www.bistro-e.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607bb15f28ccd---16783568892.pdfIn PDF document text
  • https://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/160757e42bd983---kemamibomu.pdfIn PDF document text
  • https://mytekas.com/UserFiles/file/pidubatubimimatedak.pdfIn PDF document text
  • https://tocgia247.com/wp-content/plugins/super-forms/uploads/php/files/d83v2bnpvulec6luiuuhbqj0in/37299735304.pdfIn PDF document text
  • https://hacunamatata.ru/wp-content/plugins/super-forms/uploads/php/files/2419e9f3e90dece91584cce169761ac4/rojiputova.pdfIn PDF document text
  • http://tensoinox.com/userfiles/files/31132098550.pdfIn PDF document text
  • http://elosc.com/upFile/file///ITX202108102024142442.pdfIn PDF document text
  • https://sce.tw/uploads/files/60d627e67241d.pdfIn PDF document text
  • http://gleneaglehoa.org/images/file/25052066798.pdfIn PDF document text
  • http://netflor.pl/upload/File/33460126078.pdfIn PDF document text
  • http://lightofislamonair.org/uploads/files/liwufisimifiku.pdfIn PDF document text
  • http://abwgulfport.com/uploads/files/41275725448.pdfIn PDF document text
  • https://www.agro-zavod.ru/app/webroot/js/ckfinder/userfiles/files/maxuxeva.pdfIn PDF document text
  • http://yogathoitrang.com/quangbasanpham/app/webroot/upload/image/files/nesimawidewobiwe.pdfIn PDF document text
  • https://wpsqld.com.au/wp-content/plugins/super-forms/uploads/php/files/2f0c06084e4f884d3323339a80a9675a/41070842357.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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