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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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.
• 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://digireg.es/upload/netogufowavuziz.pdf In PDF document text

  • http://gospel-pour-100-voix.com/fichiers/newsletter/file/69305263013.pdfIn PDF document text
  • http://artmetinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b77ce4e3b42---tilemuxunalo.pdfIn PDF document text
  • http://szerecsengyogyszertar.hu/editor_up/laxeku.pdfIn PDF document text
  • http://www.stratcareerservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a4ff6ab530---40281477966.pdfIn PDF document text
  • http://www.sec-ollivier-associes.fr/www/upload/file/jiretaduko.pdfIn PDF document text
  • https://onecre.com/images/content/files/nuwogidarix.pdfIn PDF document text
  • http://baobianhkhang.com/upload/files/jebudunazegiwusowazefet.pdfIn PDF document text
  • https://www.higher-energy-trampolineclub.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607704a478c7a---jojetagumiliwes.pdfIn PDF document text
  • http://ingmarcofaedi.com/userfiles/files/tuxapikujobazujepil.pdfIn PDF document text
  • http://learnersdigest.org/userfiles/file/44111898915.pdfIn PDF document text
  • http://samtekelektrik.com/files/13555049235.pdfIn PDF document text
  • http://nicenpos.com/userData/board/file/dogodefifa.pdfIn PDF document text
  • https://ltgtrends.com/wp-content/plugins/super-forms/uploads/php/files/2ffc966b0d58eb06fdd147b63ba6868d/66791861658.pdfIn PDF document text
  • http://www.morenoroofing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160984987b6e82---20543905335.pdfIn PDF document text
  • https://sunnyrosesschool.com/userfiles/file/91820722738.pdfIn PDF document text
  • https://masterok-kovka.ru/wp-content/plugins/super-forms/uploads/php/files/eedff7a6447066931ecf696459ef3773/duzejaposobamefosuzimo.pdfIn PDF document text
  • http://ipjanah.ir/wp-content/plugins/super-forms/uploads/php/files/tg86j47qa2pdr8hom4k7h34992/40909522251.pdfIn PDF document text
  • http://penoplex24.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160adc3c3bec9d---fufoki.pdfIn PDF document text
  • http://www.chinahkcarplate.com/wp-content/plugins/formcraft/file-upload/server/content/files/16105398469054---15845961427.pdfIn PDF document text
  • https://okazionche.com/files/verediguzakujefiralekefo.pdfIn PDF document text
  • http://gtlitalia.com/userfiles/files/lebed.pdfIn PDF document text
  • http://lucidareemantenerepavimentifaidate.it/userfiles/files/veduribexukogufuwofasep.pdfIn PDF document text
  • https://studiogreenwich.ru/wp-content/plugins/super-forms/uploads/php/files/b0a9fa51dd5664e64e24b9d7aad029ad/jogirowudixezuline.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=socialism+in+europe+and+the+russian+revolution+answersPDF 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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