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://krisoc.ru/uplcv?utm_term=santa+baby+piano+sheet+music+free+pdf PDF link annotation

  • https://journeypeople.cc/wp-content/plugins/super-forms/uploads/php/files/c67ffb086dd06757ae37fd60eb9dd0a7/87828154842.pdfIn PDF document text
  • https://eliteswimmingpoolsinc.com/wp-content/plugins/super-forms/uploads/php/files/b9l9roqebgjhidbluo6i8glpg5/bixuvig.pdfIn PDF document text
  • https://gamletaarnhuset.no/wp-content/plugins/formcraft/file-upload/server/content/files/160b24b8bedcbe---sadapedixitudumenapotus.pdfIn PDF document text
  • http://www.la-rocca.pl/app/webroot/files/files/77856273345.pdfIn PDF document text
  • https://pointsourcegroup.com/wp-content/plugins/super-forms/uploads/php/files/2ec90b9d296b91fb3c796abe0fa5ea0d/xazutawajawogiza.pdfIn PDF document text
  • http://hublihorse.com/uploads/userfiles/files/95321198651.pdfIn PDF document text
  • http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090467dada36---didizod.pdfIn PDF document text
  • https://bellevuecommunityfoodbank.org/wp-content/plugins/super-forms/uploads/php/files/1b6a9edad484411d658952472c68b985/95304144872.pdfIn PDF document text
  • http://www.oknookna.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1607ac5b2b3edc---32164769595.pdfIn PDF document text
  • http://totalfinance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1609da472548e3---vikole.pdfIn PDF document text
  • http://conservativista.com/js/ckfinder/userfiles/files/pisabene.pdfIn PDF document text
  • https://eldorado777.ro/upload/editor/file/vipezaxaru.pdfIn PDF document text
  • https://bdblue.com/ckfinder/userfiles/files/26276692736.pdfIn PDF document text
  • http://styrexon.cz/userfiles/file/61242700446.pdfIn PDF document text
  • http://angelcabrera.com/FCKfiles/file/65186127135.pdfIn PDF document text
  • http://ohappy.org/userData/board/file/36316181407.pdfIn PDF document text
  • https://alnahamgroup.com/userfiles/file/59774196671.pdfIn PDF document text
  • https://pyhm.ca/wp-content/plugins/super-forms/uploads/php/files/9esfjv3som8e6hloipg40dqoh6/65032294701.pdfIn PDF document text
  • http://ghrnightinwhite.com/clients/7/72/721f26fb9237119891afe8d29dbdfc29/File/seluwedatamiwevoger.pdfIn PDF document text
  • http://conblocmanado.com/pics/file/pasufobi.pdfIn PDF document text
  • http://www.recetasyconsejos.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ecba2c0afe---35245694230.pdfIn PDF document text
  • http://tpt.taipei/asset/uploads/files/71464382268.pdfIn PDF document text
  • http://lokalsport.no/userfiles/file/mubamabifetavaxulapari.pdfIn PDF document text
  • https://www.americanapi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075f27352f11---memobiluf.pdfIn PDF document text
  • http://ttlengenharia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609124ce3299b---21714285298.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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