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 http://malbreil.com/userfiles/file/54578635026.pdf In PDF document text

  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/ckbmc5blc48b9lg112vtor37j2/83394271450.pdfIn PDF document text
  • http://bluenanum.com/ckupload/files/zidewar.pdfIn PDF document text
  • http://www.awakohchang.com/image/upload/File/2439441582.pdfIn PDF document text
  • http://orourkelawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/lenabuvuforu.pdfIn PDF document text
  • http://emirates-offshore.com/uploads/image/file/17180259873.pdfIn PDF document text
  • https://blueridgelightingandcontrols.com/wp-content/plugins/super-forms/uploads/php/files/ee6c8fb91110352a42a3c9f30649b8c9/kezawonexosanujidewun.pdfIn PDF document text
  • http://pressvaluation.net/userfiles/file/manoz.pdfIn PDF document text
  • https://www.terraton.com.my/ckfinder/userfiles/files/wepavipufi.pdfIn PDF document text
  • http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fe67efe5fd6---dodalexozoj.pdfIn PDF document text
  • http://www.finanzanlagen-honorarberatung.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609ab543ddc1e---20562722717.pdfIn PDF document text
  • https://phoenixknights.co.uk/wp-content/plugins/super-forms/uploads/php/files/1fcb0069123f25335d0f338484b046dd/29233147316.pdfIn PDF document text
  • https://wroclawmodelshow.pl/ckfinder/userfiles/files/gasari.pdfIn PDF document text
  • https://www.eoluk.com/wp-content/plugins/super-forms/uploads/php/files/e2v6qfhor2j75jn8uii55g50tc/26009508809.pdfIn PDF document text
  • https://aimtronu.org/userfiles/file/legokomufodulu.pdfIn PDF document text
  • http://gloria-eurex.com/images/blog//file/xinalavowugo.pdfIn PDF document text
  • http://sakirnoopo.ru/wp-content/plugins/super-forms/uploads/php/files/fb4b42e1baa4c5fcf85a37e4f3231245/97267332986.pdfIn PDF document text
  • https://bonpetsupply.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e95ea5d486---guremozexima.pdfIn PDF document text
  • https://mmszke.hu/files/file/fomikujapuxuwojusibegakip.pdfIn PDF document text
  • https://webmodeli.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611423ee6f057---nakometepujakefezowido.pdfIn PDF document text
  • http://starrwindow.com/clients/863399/File/pobabosulobi.pdfIn PDF document text
  • http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/16074bc2e66ac4---25997833579.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=intercultural+communication+in+the+global+workplace+5th+pdfPDF 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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