Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
  Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
• 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=chromecast+laptop+to+tv PDF link annotation

  • https://giga-tronics.com/userfiles/files/68451311833.pdfIn PDF document text
  • https://web-sila.ru/wp-content/plugins/super-forms/uploads/php/files/75668dfc36f169546132cb2e035446da/71240368786.pdfIn PDF document text
  • http://tootingtaxi.com/survey/userfiles/files/vopawefef.pdfIn PDF document text
  • http://trungtamsangloc.vn/uploads/ck_upload/files/24447190885.pdfIn PDF document text
  • http://www.commandinglife.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613656867629d---75376288135.pdfIn PDF document text
  • https://indobaliart.com/sitefiles/file/junibug.pdfIn PDF document text
  • http://www.opencalgary.org/wp-content/plugins/formcraft/file-upload/server/content/files/161404b97183b1---wopovebefidaludom.pdfIn PDF document text
  • http://falconfam.com/ckfinder/userfiles/files/dobupulalenuxekojawe.pdfIn PDF document text
  • https://heritagecambodiatravel.com/userfiles/file/dajaxed.pdfIn PDF document text
  • https://servicepapik.ro/files/60014296863.pdfIn PDF document text
  • http://benedictinoselrosal.org/ckfinder/userfiles/files/pagosebalisuga.pdfIn PDF document text
  • https://reaga.net/js/ckfinder/userfiles/files/muragumijo.pdfIn PDF document text
  • https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/34c8ea3737ded3bc88c73d0107b17f96/16782596570.pdfIn PDF document text
  • http://www.sospapa24.com/lib/ckfinder/imgupload/files/42154507483.pdfIn PDF document text
  • http://www.cheapmotorcycleinsurancepa.com/wp-content/plugins/super-forms/uploads/php/files/04afa148efefce63a0e7485522d9a70a/zoxomejep.pdfIn PDF document text
  • https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d6e1dd32e7---98313350629.pdfIn PDF document text
  • https://yuktogel.com/contents/files/danosafobawugizivigugesis.pdfIn PDF document text
  • http://evevoyance.fr/adh/.-/file/45475625720.pdfIn PDF document text
  • http://zdravi-kromeriz.cz/files/file/58180503806.pdfIn PDF document text
  • http://imi.vc/upload/files/36000584929.pdfIn PDF document text
  • http://studiofapas.it/userfiles/files/87507657067.pdfIn PDF document text
  • http://indiebookoftheday.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135a26d13547---nenetudufoj.pdfIn PDF document text
  • http://xn--90afqerdlt1f.xn--p1ai/admin/ckfinder/userfiles/files/witojolisudavige.pdfIn PDF document text
  • https://malimbe.africa/wp-content/plugins/super-forms/uploads/php/files/dd4506a7f3e05061d7e91daa6a53d739/53221583817.pdfIn PDF document text
  • http://xn--80aer5aza.xn--c1acndkmcarx.xn--p1ai/ckfinder/userfiles/files/15427956133.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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