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
• 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.
• 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://zilalcooling.com/other_files/File/tekazo.pdf In PDF document text

  • https://itandem.net/ckfinder/userfiles/files/samanabofepedisobevo.pdfIn PDF document text
  • https://irepairplus.nl/app/webroot/files/userfiles/files/29781508579.pdfIn PDF document text
  • http://medizator.ru/ckfinder/userfiles/files/75917443638.pdfIn PDF document text
  • http://nc-israel.ru/upload/files/78200112640.pdfIn PDF document text
  • https://angkaganjil.com/contents/files/piwufitedirunasixuxototof.pdfIn PDF document text
  • http://full814.com/upload/files/18197371276.pdfIn PDF document text
  • https://inprovituruguay.com/ckfinder/userfiles/files/71238892131.pdfIn PDF document text
  • http://zhihepvb.com/upload/ckimg/files/202109060557359088.pdfIn PDF document text
  • http://nebovsem.ru/app/webroot/files/files/mogokabagezup.pdfIn PDF document text
  • http://ccsup.co.th/uploads/ckfinder/files/46788117782.pdfIn PDF document text
  • http://goldendoodlesofthesierranevadas.com/userfiles/file/98704674942.pdfIn PDF document text
  • http://puntolinea.org/userfiles/files/pulojudefisenajisumaken.pdfIn PDF document text
  • https://www.studiorosaliabusco.it/ckfinder/userfiles/files/66390530776.pdfIn PDF document text
  • http://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/1613023f49e3b9---44090078060.pdfIn PDF document text
  • http://innotec-industrie.be/userfiles/file/38774275738.pdfIn PDF document text
  • http://asiadomainstore.com/userfiles/file/nifilufamazuvonufokewal.pdfIn PDF document text
  • http://mylodge-naoshima.com/images/blog/file/33288230460.pdfIn PDF document text
  • http://www.gametimecatering.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137e26b943e9---42707417426.pdfIn PDF document text
  • https://speedwayinfo.hu/uploads/file/kejureludamilu.pdfIn PDF document text
  • http://langmoon.jp/js/upload/files/64300464979.pdfIn PDF document text
  • http://tavaszitura.eu/userfiles/files/54717830974.pdfIn PDF document text
  • http://amwordpress.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613fce2c92408---94011038574.pdfIn PDF document text
  • http://hasanmasat.com/ckfinder/userfiles/files/13017938842.pdfIn PDF document text
  • http://kindergartenhelden.at/upload/file/49930530425.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=webseite+nicht+verf%C3%BCgbar+androidPDF 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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