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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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://impulsa.mantareys.net/uploads/plantillas/files/sitawizexugegixusukev.pdf In PDF document text

  • http://terminsk.by/pics/files/81540822977.pdfIn PDF document text
  • http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1613fb07c731ac---jifutiluzagaxex.pdfIn PDF document text
  • http://hstairan.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/43714227924.pdfIn PDF document text
  • http://curry-box-deluxe.de/userfiles/file/bafozesikozawunami.pdfIn PDF document text
  • http://sinners-party.de/media/file/vowiwadi.pdfIn PDF document text
  • https://lesrimaudieres.com/images/uploads/file/83303253488.pdfIn PDF document text
  • https://vizzzio.ru/wp-content/plugins/super-forms/uploads/php/files/ae9d8b6c75467921e55a95f1d278cbae/53213780448.pdfIn PDF document text
  • http://mediasingrid.com/js/new/fckeditor/userfiles/file/508518350.pdfIn PDF document text
  • https://tatvan.in/userfiles/file/29007805243.pdfIn PDF document text
  • http://alacartedesign.de/userfiles/file/398834399.pdfIn PDF document text
  • http://client.diffuse.info/files/45431970769.pdfIn PDF document text
  • https://hearing-outlet.com/uploads/files/202109052205436851.pdfIn PDF document text
  • http://www.whirlpool-beachcomber.at/wp-content/plugins/formcraft/file-upload/server/content/files/16131175879b27---4763246032.pdfIn PDF document text
  • http://versobrokers.eu/userfiles/files/23996718862.pdfIn PDF document text
  • http://stamforgtechnologies.com/uploads/19609675090.pdfIn PDF document text
  • http://espokebar.com/uploads/files/xatadanawinuwopilo.pdfIn PDF document text
  • http://foire-fromages-et-vins.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c5c1042068---59435465013.pdfIn PDF document text
  • https://cambodiaangkorhomestay.com/userfiles/file/92280394977.pdfIn PDF document text
  • http://lichnyiybrand.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16142901201ab1---33491090271.pdfIn PDF document text
  • https://honghow.com/ckfinder/userfiles/files/vamarezozi.pdfIn PDF document text
  • http://ambulatorioveterinariobubiniregini.eu/userfiles/files/33467695909.pdfIn PDF document text
  • http://deeringbayrealestate.com/userfiles/files/komose.pdfIn PDF document text
  • https://patriot.ch/wp-content/plugins/super-forms/uploads/php/files/mqb7ci4m0rrovl0lte1p8dv6f8/75317066820.pdfIn PDF document text
  • http://secureyun.cn/uploadfile/file///2021090602374551.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=full+play+apkPDF 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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