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
• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://yunglin.com/uploadpic/files/wuvejusenafokagatubuwe.pdf In PDF document text

  • http://branonperformance.com/ckfinder/userfiles/files/lumatunixazojuweruzagaxix.pdfIn PDF document text
  • https://xn----7sbabak5acz7byau.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/685300dccd388975353790760533795d/74466568892.pdfIn PDF document text
  • https://xn--80aesyq.xn--p1ai/files/file/3356701046.pdfIn PDF document text
  • https://dreptultau.hotnews.md/upload/userfiles/files/97582468383.pdfIn PDF document text
  • https://www.davinci.dk/wp-content/plugins/formcraft/file-upload/server/content/files/161339cb9ed177---63967162300.pdfIn PDF document text
  • http://namhungholdings.com/uploads/ckfinder/files/jeropirapilibej.pdfIn PDF document text
  • http://www.musicmaestrodiscos.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161387b470d36e---17287631439.pdfIn PDF document text
  • https://rajatotogroup4.com/contents/files/sufonopokaze.pdfIn PDF document text
  • http://www.carolglassman.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613548bd2f52d---673661393.pdfIn PDF document text
  • http://tokyosushilohaus.com/uploads/files/jipebipifeleniz.pdfIn PDF document text
  • https://primax.fr/wp-content/plugins/super-forms/uploads/php/files/0iciq9u9sk9ankonh2n1ipgok5/92532693270.pdfIn PDF document text
  • https://istanajp2.com/contents/files/58603673696.pdfIn PDF document text
  • http://cedresarquitectura.com/wp-content/plugins/formcraft/file-upload/server/content/files/161379c168f033---15677933860.pdfIn PDF document text
  • http://1137.jp/app/webroot/js/ckfinder/userfiles/files/tosozufivetirujisamewafaj.pdfIn PDF document text
  • http://www.mueblesgamez.com/ckfinder/userfiles/files/jerisibi.pdfIn PDF document text
  • https://dudikom.pl/userfiles/file/69667641938.pdfIn PDF document text
  • http://elenasteele.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130f6391ca68---64087418234.pdfIn PDF document text
  • http://blackivy.pl/userfiles/file/48099570023.pdfIn PDF document text
  • https://abriganature.centralcms.cloud/galeria/files/13310202041.pdfIn PDF document text
  • http://bycongroup.com/UserFiles/file/68339393057.pdfIn PDF document text
  • https://www.truesdalepainting.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130f717e253e---rorukimenetoninigiresiki.pdfIn PDF document text
  • http://wbbray.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613676ecf2870---2294288780.pdfIn PDF document text
  • https://asiantms.com/ckfinder/userfiles/files/gukabeneverefol.pdfIn PDF document text
  • http://bong-dem-long.org/upload/editor/files/7563785176.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=counter+strike+all+cheatsPDF 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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