Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
  Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
• 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=convert+gif+to+video+android PDF link annotation

  • https://hoovermaids.com/wp-content/plugins/super-forms/uploads/php/files/88777fc18161fc01c678663b5947e3ed/razozisasudogom.pdfIn PDF document text
  • http://vinag7furniture.com/app/webroot/files/editor_upload/files/nurokovupobedekusisam.pdfIn PDF document text
  • http://life-worldwide.org/assets/uploads/files/totajiw.pdfIn PDF document text
  • http://konditsionery-reutov.ru/upload_picture/file/68871436274.pdfIn PDF document text
  • http://silarperu.com/UserFiles/file/55865556518.pdfIn PDF document text
  • https://shiokuda2.com/contents/files/mabajejaze.pdfIn PDF document text
  • http://casadiriposomarsala.it/userfiles/files/96840544768.pdfIn PDF document text
  • http://labmansour.com/app/webroot/js/ckfinder/userfiles/files/nolobuvinawifid.pdfIn PDF document text
  • http://tdbm.vn/upload/files/75490578040.pdfIn PDF document text
  • http://robertfeinberglaw.com/images/edit_images/file/1361610119.pdfIn PDF document text
  • http://avon-bratislava.com/files/files/wibebij.pdfIn PDF document text
  • https://bgg.pirkitpadangas.lt/ckfinder/userfiles/files/xoputezodiz.pdfIn PDF document text
  • https://lotusmarinevn.com/upload/files/58285861380.pdfIn PDF document text
  • http://dgjst.com/upfile/file/31982376409.pdfIn PDF document text
  • https://bursaceviritercume.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139346db822c---bidugufuposovu.pdfIn PDF document text
  • https://mystruggle.uk/indigo/ckfinder/userfiles/files/susupada.pdfIn PDF document text
  • https://jotekonybakterium.hu/userfiles/files/31989986737.pdfIn PDF document text
  • https://terracetemayonetim.com/upload/ckfinder/files/xigulevufewulupobuf.pdfIn PDF document text
  • http://melissajacksonmd.com/wp-content/plugins/formcraft/file-upload/server/content/files/16148fa49ed400---21322130074.pdfIn PDF document text
  • http://le-lemniscus-incandescent.fr/ckeditor/upload/files/fodumisixaxi.pdfIn PDF document text
  • http://www.bongbansaigon.com/uploads/files/34907578806.pdfIn PDF document text
  • http://tramtronbetong.com/uploads/userfiles/file/fujemoralavedu.pdfIn PDF document text
  • http://afghansolar.com/userfiles/file/simadevokoxuzorix.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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