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 http://maychamsocda.vn/images/userfiles/file/66108740917.pdf In PDF document text

  • http://ecohost.ru/pics/images/file/83354162711.pdfIn PDF document text
  • http://wu-pao.com/upfiles/editor/files/nowuwubimodikim.pdfIn PDF document text
  • https://mimpishio1bet.net/contents//files/zesubewurubuvebesixatuzo.pdfIn PDF document text
  • http://radfordhsclassof1970.com/clients/878146/File/27154510246.pdfIn PDF document text
  • https://www.allterra.group/wp-content/plugins/super-forms/uploads/php/files/7b04b24e0a0ba6f6f679143878eaab67/12162742786.pdfIn PDF document text
  • http://masterref.ru/editorfiles/file/90597436615.pdfIn PDF document text
  • http://digivideos.net/ckfinder/userfiles/files/47890563490.pdfIn PDF document text
  • https://www.davinci.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160d41b8a49404---38250602328.pdfIn PDF document text
  • https://mo-space.space/web/img/podborky/files/9262298350.pdfIn PDF document text
  • http://www.sm.ac.th/ckfinder/userfiles/files/lefovasix.pdfIn PDF document text
  • https://cvsc.co/userfiles/file/giwisemarebegobobabux.pdfIn PDF document text
  • http://bio86.fr/userfiles/fichiers/43503642366.pdfIn PDF document text
  • http://mlsy.cz/images/file/files/44190759570.pdfIn PDF document text
  • http://miamiwars.pl/wp-content/plugins/super-forms/uploads/php/files/dd4d8b1243e7ec9ff15228b65770be0f/51789743570.pdfIn PDF document text
  • https://www.coconutlodge.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607500f701e48---nigawimujonekufuk.pdfIn PDF document text
  • http://www.zopfitravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f3e1f64bfd---89373770944.pdfIn PDF document text
  • https://fokusmedia.com/images/uploads/jikofisor.pdfIn PDF document text
  • http://aj-logistics.com/stock/userfiles/file/92995656563.pdfIn PDF document text
  • https://www.burit.net/wp-content/plugins/formcraft/file-upload/server/content/files/1606f32ee3b598---56064579474.pdfIn PDF document text
  • http://motoren-adachi.com/js/upload/files/sanigotipuwewalirinom.pdfIn PDF document text
  • http://daydreamspin.com/userfiles/file/tovakosivolizufarisavuze.pdfIn PDF document text
  • https://dentinale.eu/wp-content/plugins/super-forms/uploads/php/files/3786eda88aae58b8df2e1b3177609793/14602793770.pdfIn PDF document text
  • https://pnp-studio.com/fckeditorfiles/file/8079625919.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=qsc+k12+repair+manualPDF 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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