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 https://archism.ru/uplcv?utm_term=piano+tiles+app+download PDF link annotation

  • http://engineersclasses4competition.com/files/others/sovizowuzez.pdfIn PDF document text
  • https://kligi.viart.lt/ckfinder/userfiles/files/puzimu.pdfIn PDF document text
  • http://jvcc.cn/ckfinder/userfiles/files/210910070309823547zdl13.pdfIn PDF document text
  • https://www.burnat-provins.ch/ck/ckfinder/userfiles/files/49817788190.pdfIn PDF document text
  • https://sv-fin.ru/wp-content/plugins/super-forms/uploads/php/files/250cc0b3ce165dff4fce52cc22f7a39b/84044293459.pdfIn PDF document text
  • http://finsura-lifedirect.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16136a9d1d6b92---66163412439.pdfIn PDF document text
  • http://reutlinger.pl/userfiles/file/podujadejevubufovemu.pdfIn PDF document text
  • http://studioego.cz/userfiles/file/48161566873.pdfIn PDF document text
  • https://wacee.net/wp-content/plugins/formcraft/file-upload/server/content/files/16138154f66a25---sutozibabebebak.pdfIn PDF document text
  • https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/16131bd25c4903---sofetufirupemobibexibiz.pdfIn PDF document text
  • http://lanaecoloridabruzzo.it/userfiles/file/vujef.pdfIn PDF document text
  • http://www.ishvani.com/www/js/ckfinder/userfiles/files/10462614750.pdfIn PDF document text
  • http://lica.plovdivweek.com/js/ckfinder/userfiles/files/33048046268.pdfIn PDF document text
  • https://danielfelber.ch/userfiles/file/38552685632.pdfIn PDF document text
  • http://stmarysharipad.com/userfiles/file/99088472330.pdfIn PDF document text
  • http://slstudio.it/userfiles/files/99659288748.pdfIn PDF document text
  • http://aokunoil.com/ckfinder/userfiles/files/55133764901.pdfIn PDF document text
  • http://ljhalls.com/wp-content/plugins/super-forms/uploads/php/files/8d7fb80ecbd4ad5c6220b50d118984bc/lunoremafitifonimizulam.pdfIn PDF document text
  • http://3qbuy.com/CKEdit/upload/files/zivodogipatisofe.pdfIn PDF document text
  • https://thietbigas.net/media/files/nulusisofiwav.pdfIn PDF document text
  • http://hejia-ele.net/upload/60904337373.pdfIn PDF document text
  • http://moveisgarciadigital.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613af84acc936---19067242750.pdfIn PDF document text
  • http://bonezi.morefriendship.com/upload/files/84502705651.pdfIn PDF document text
  • http://thegioidahoacuong.com/uploads/image/files/56243099869.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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