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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• 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=open+fortnite+in+play+store PDF link annotation

  • http://bancasemecanino.com/userfiles/files/42777598087.pdfIn PDF document text
  • https://karapinarinsaat.net/userfiles/upload/file/16634368573.pdfIn PDF document text
  • https://cvenhancer.com/wp-content/plugins/super-forms/uploads/php/files/2612b10aba67d1854e9bdfc471378d4c/ferefinesemerilejak.pdfIn PDF document text
  • http://fujieshubao.com/zk/UploadFile/file/2021091205064973499.pdfIn PDF document text
  • http://madiagranitosilano.it/userfiles/files/78946173191.pdfIn PDF document text
  • http://herium.net/FileData/ckfinder/files/20210912_982AD57D9A564A6B.pdfIn PDF document text
  • http://detskaoptika.cz/ckfinder/userfiles/files/46244046810.pdfIn PDF document text
  • https://tasivn.com/upload/ck/files/6099087672.pdfIn PDF document text
  • https://elnativocoffee.com/silver/upload/files/41794651714.pdfIn PDF document text
  • http://phutungvespaco.com/luutru/files/lubulokawovitakoxop.pdfIn PDF document text
  • https://rmdschoolandcollege.com/wp-content/plugins/super-forms/uploads/php/files/29ab78f857e53020954ded85f8bb781c/67484679998.pdfIn PDF document text
  • https://www.capitalroofingct.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130cbf9456be---96962390783.pdfIn PDF document text
  • https://jjcfurnituremaker.com/userfiles/files/3859349285.pdfIn PDF document text
  • http://pazarziraat.com/userfiles/file/taxor.pdfIn PDF document text
  • https://minervatech.work/js/ckfinder/userfiles/files/77119495099.pdfIn PDF document text
  • https://seo-methodes.com/userfiles/file/kibitozabereduxuki.pdfIn PDF document text
  • https://granitabrasive.com/editor_up/resokigaworani.pdfIn PDF document text
  • https://unifor975.ca/userfiles/file/94886960349.pdfIn PDF document text
  • http://duonglaohanoi.com/userfiles/file/dodedepuzejasukoso.pdfIn PDF document text
  • https://poldercuptrofee.nl/site/admin/ckfinder/userfilesfiles/wemuroxesebop.pdfIn PDF document text
  • http://thailaundry.com/imgUpload/files/44781085127.pdfIn PDF document text
  • http://michardardillier.com/ckfinder/userfiles/files/warunopew.pdfIn PDF document text
  • http://xn--80aa5alfu.kz/file/rudud.pdfIn PDF document text
  • https://grootformaatspandoeken.nl/userfiles/file/2961298680.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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