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://krindustria.com.br/site/wp-content/plugins/formcraft/file-upload/server/content/files/1608ad5debc0d2---lodaberiwopegufowozedifow.pdf In PDF document text

  • https://www.isgs.org/wp-content/plugins/super-forms/uploads/php/files/01cd70a140da6d94257129010432c02d/42019310180.pdfIn PDF document text
  • http://rockycheng.com/ckfinder/userfiles/files/rulajadulepufimiveb.pdfIn PDF document text
  • http://asijskepotraviny.cz/files/file/dalelapesuwij.pdfIn PDF document text
  • http://fujiya-la.com/uploads/files/gamaratipabukirek.pdfIn PDF document text
  • http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/160c92aca4b29c---zasazejijawavi.pdfIn PDF document text
  • http://c2mag.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076e78027bff---18508541990.pdfIn PDF document text
  • http://coopmong.com/ckupload/files/50118173210.pdfIn PDF document text
  • http://sushiosushi.com/uploads/files/mebekugemujarajoguparap.pdfIn PDF document text
  • https://hitourkorea.com/FileData/ckfinder/files/20210626_DBD897A03B25C946.pdfIn PDF document text
  • http://crystalsteakandstogie.com/clients/1/1d/1dbb6d5698303b6304ae84622e226a19/File/98491230646.pdfIn PDF document text
  • http://labmansour.com/app/webroot/js/ckfinder/userfiles/files/51745760682.pdfIn PDF document text
  • http://askort.pl/Upload/file/33408881237.pdfIn PDF document text
  • http://protech.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/16086226ebdc7d---majobazitave.pdfIn PDF document text
  • http://www.cascinasorigherio.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607cff6b91528---xelowarebokikezuvuzawalob.pdfIn PDF document text
  • https://freedomtampons.com/wp-content/plugins/super-forms/uploads/php/files/cf59f1429386fd94438c966e54a38c25/vubozit.pdfIn PDF document text
  • http://lbhodgereunion.com/clients/3/38/38e1f81cb1ac74d12d86c8ba87866b9f/File/ruromapude.pdfIn PDF document text
  • https://hansenlight.com/UploadFile/files/64535035642.pdfIn PDF document text
  • https://shrmivirtual.org/wp-content/plugins/super-forms/uploads/php/files/40c317ef44571c6ab06cddb2387db0c6/52134399220.pdfIn PDF document text
  • http://bvmnotarissen.nl/app/webroot/files/ckeditor_files/files/42384657020.pdfIn PDF document text
  • http://gostinica-domodedovo.ru/files/25259816847.pdfIn PDF document text
  • http://lovemyskindayspa.com/clients/d/d9/d99ed7cf7cbac978b7326c22a81d1608/File/52252972650.pdfIn PDF document text
  • http://suamayin.biz/userfiles/file/92254805673.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=cryptographic+network+protocol+for+secure+data+communicationPDF link annotation
  • https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/fab523907fae1dac631bf858ebe48b31/58314240262.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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