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 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://oniceh.ru/uplcv?utm_term=baixar+jogos+de+psp+tudo+para+android PDF link annotation

  • https://gccpay.net/wp-content/plugins/super-forms/uploads/php/files/9f10c790c27a752ca7314fe7b38a1b96/27940687574.pdfIn PDF document text
  • https://sportli.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/16093df3ceb1ee---59001749625.pdfIn PDF document text
  • http://app8itebarandgrill.com/admin/images/file/sezazubavepeb.pdfIn PDF document text
  • http://edumedcare.pl/upload/files/94522439714.pdfIn PDF document text
  • http://krindustria.com.br/site/wp-content/plugins/formcraft/file-upload/server/content/files/16095be1547d2c---68020845379.pdfIn PDF document text
  • http://namjapizza.com/app/webroot/files/bimixiw.pdfIn PDF document text
  • http://ambulatorioveterinariocigliano.com/userfiles/files/kibowuvuwezamawim.pdfIn PDF document text
  • https://www.charityweiss.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ac152f0b0bf---fowesatufudedevipag.pdfIn PDF document text
  • http://finemetal-cn.com/upload/files/69897030050.pdfIn PDF document text
  • http://www.scmphotography.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a4c983eec81---20272670971.pdfIn PDF document text
  • https://propbrains.com/wp-content/plugins/super-forms/uploads/php/files/05drva01gqohovar1ad51iu6h2/velosipodebi.pdfIn PDF document text
  • https://callmarkinvestments.com/callmark/files/24789666905.pdfIn PDF document text
  • http://sistersaviopublicschool.com/userfiles/file/lovajakozu.pdfIn PDF document text
  • https://www.formwork.co.uk/wp-content/plugins/super-forms/uploads/php/files/1helqoeebc07k37k4f0sas17am/futegiz.pdfIn PDF document text
  • http://suvagcentr.ru/userfiles/files/woxamutubig.pdfIn PDF document text
  • https://itchanoi.vn/uploads/news_file/maloxofisixarevatavopoxe.pdfIn PDF document text
  • http://agiusfuneraldirectors.com/files/file/12834030785.pdfIn PDF document text
  • http://hometextiles-consultant.com/ckfinder/userfiles/files/9357086581.pdfIn PDF document text
  • https://altinhediyeler.com/calisma2/files/uploads/tulisivaxozapemew.pdfIn PDF document text
  • https://www.stamfordtaxis.com/wp-content/plugins/super-forms/uploads/php/files/7h7ggig3edoggjjlbd8meuufvl/kikifa.pdfIn PDF document text
  • https://www.northwoodmedical.ca/wp-content/plugins/super-forms/uploads/php/files/99mbg09ivussnv8ahlb1ia68h2/45764968680.pdfIn PDF document text
  • http://susutour.com/userfile/file/74577658498.pdfIn PDF document text
  • https://www.schroedersales.com/wp-content/plugins/super-forms/uploads/php/files/a654616402744c51a9c5004bc85fd5a0/41917727082.pdfIn PDF document text
  • http://www.mondzorgvesa-voorschoten.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607159a001656---59342458626.pdfIn PDF document text
  • http://chanakyaaerospacedefence.com/userfiles/file/ramuwigubifoxebolosin.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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