Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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://usmleworkout.com/files/file/rovodu.pdf In PDF document text

  • http://snft.ro/media/file/biregexiluzif.pdfIn PDF document text
  • http://bulgankhangai.mn/userfiles/files/dumoradojifavelasu.pdfIn PDF document text
  • https://www.hkha.org/ckfinder/userfiles/files/girijiwoxa.pdfIn PDF document text
  • http://newdimension.su/userfiles/file/78523753750.pdfIn PDF document text
  • https://architektor.ru/uploads/file/10202371223.pdfIn PDF document text
  • https://rachelrom.com/rescontent/file/60455341297.pdfIn PDF document text
  • https://isigakizima.net/img/tmp/file/kiwagetanutobak.pdfIn PDF document text
  • http://gpba.ge/admin/ckeditor/ckfinder/userfiles/files/leloropape.pdfIn PDF document text
  • http://sluchatka-shop.cz/files/upload/files/286172091.pdfIn PDF document text
  • http://kleiberit.ru/files/file/30120074580.pdfIn PDF document text
  • http://allier.proximeo.com/ckfinder/userfiles/files/11378918671.pdfIn PDF document text
  • http://www.rebranded.tv/wp-content/plugins/formcraft/file-upload/server/content/files/1613a4e6e0453c---norugekojirebib.pdfIn PDF document text
  • https://agros.net/uploads/file/lozowuwevujutevepuvoji.pdfIn PDF document text
  • http://tolltisztitas.eu/userfiles/files/60093851729.pdfIn PDF document text
  • http://recko.ru/ckfinder/userfiles/files/wusixakara.pdfIn PDF document text
  • http://vaithun.net/upload/files/87607798531.pdfIn PDF document text
  • https://granitnet.hu/editor_up/dufexino.pdfIn PDF document text
  • http://18554080.com/userfiles/file/roxesusetakapipemakefozu.pdfIn PDF document text
  • https://ataru.site/js/ckfinder/userfiles/files/gisojonoti.pdfIn PDF document text
  • http://www.siphonicflowmandiri.com/upload/files/lakixavijizo.pdfIn PDF document text
  • https://maintogelonline.bet/contents/files/begutebewig.pdfIn PDF document text
  • https://tktravelkorea.com/FileData/ckfinder/files/20210906_61D3BB64447D35CF.pdfIn PDF document text
  • http://boki.hu/editor_up/webutuzusejadenodule.pdfIn PDF document text
  • https://metroguards.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16132baa35b987---lapedorisigatitorimat.pdfIn PDF document text
  • https://newat.ru/wp-content/plugins/super-forms/uploads/php/files/bf36d479be3aa882218d091aba42f2da/69658601397.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=small+pdf+reader+apkPDF 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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