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.
• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://vietnamairlinescorp.org/js/ckfinder/userfiles/files/59506594018.pdf In PDF document text

  • http://levne-pohary.cz/UserFiles/File/42349445435.pdfIn PDF document text
  • http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/16133c8d1e4dee---pokir.pdfIn PDF document text
  • https://gres-k.cat/userfiles/file/wobugop.pdfIn PDF document text
  • http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/52b2f7b7b8dafa63347c4c9d5127e913/80453332066.pdfIn PDF document text
  • http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/8f071c381be1572f0323608ff906ccc4/96547429604.pdfIn PDF document text
  • http://fairbank-ia.org/admin/ckfinder/userfiles/files/90431903862.pdfIn PDF document text
  • http://pokewaveanaheim.com/uploads/files/87521090845.pdfIn PDF document text
  • https://rumusjitu.com/contents/files/3637950219.pdfIn PDF document text
  • https://genesisbehaviorcenter.com/wp-content/plugins/super-forms/uploads/php/files/e130b018fa92d7209a8e44e8a005267c/2904489012.pdfIn PDF document text
  • https://qualitycountscleaning.com/wp-content/plugins/super-forms/uploads/php/files/682f36c0e2dd9b2aeeda1e05abec920d/78529405470.pdfIn PDF document text
  • https://paeonia.ch/userfiles/files/84486586362.pdfIn PDF document text
  • http://w-mill.jp/images/file/7208133694.pdfIn PDF document text
  • https://www.scanworld.se/wp-content/plugins/formcraft/file-upload/server/content/files/1613491ee426fe---88593141896.pdfIn PDF document text
  • http://toeicspeaking.net/_UploadFile/Images/file/8986458223.pdfIn PDF document text
  • https://dzido.pl/userfiles/file/99896928676.pdfIn PDF document text
  • http://brain-sh.tw/upload/file/82945476242.pdfIn PDF document text
  • https://barcelonacentromedico.es/files/galeria/files/45346759409.pdfIn PDF document text
  • http://www.cda.org.hk/ckfinder/userfiles/files/23728716475.pdfIn PDF document text
  • https://cleartunemonitors.com/ckfinder/userfiles/files/fiwugewepefusemuliguneja.pdfIn PDF document text
  • http://sd-admin.fazendapenaazul.com/ckeditor/uploads/files/zitewexojima.pdfIn PDF document text
  • https://kalashad.com/userfiles/file/78390126514.pdfIn PDF document text
  • http://scoutpate.com/userfiles/file/58500078811.pdfIn PDF document text
  • https://www.accidentinjurylascruces.com/wp-content/plugins/super-forms/uploads/php/files/lvk8bm0k00urf69h320kvtdujs/wuzanizerofosug.pdfIn PDF document text
  • http://sun-green.nl/ckfinder/userfiles/files/27286584190.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=minecraft+windows+10+free+trial+multiplayerPDF 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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