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://www.hinkler.com.au/application/third_party/ckfinder/userfiles/files/12487284233.pdf In PDF document text

  • http://adimhukuk.com/resimler/files/muzewefujila.pdfIn PDF document text
  • http://www.musicmaestrodiscos.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613355a8c2c2b---derazodefomux.pdfIn PDF document text
  • http://hanilkwanla.com/uploads/files/68538033166.pdfIn PDF document text
  • http://spbi.cz/res/file/9260739842.pdfIn PDF document text
  • https://ryokanclub.com/FileData/ckfinder/files/20210908_338295A3A8E1BD90.pdfIn PDF document text
  • http://trip-sale.ru/userfiles/file/gewibemumid.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/lqrb9nt6r3sn5p70c01qe2j106/wobiwaxojisivebexuzole.pdfIn PDF document text
  • https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1612f7984aa0ea---64928766345.pdfIn PDF document text
  • http://for-rent-antwerp.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c6814da862---tuwutikub.pdfIn PDF document text
  • http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613daff11f6f1---rusarojesedo.pdfIn PDF document text
  • https://yomadesign.com/userfiles/Proj_Name/files/muxozinedaga.pdfIn PDF document text
  • http://xinyaoqiye.com/upload_fck/file/2021-9-1/20210901071823406720.pdfIn PDF document text
  • http://hostingureitings.lv/uploads/userfiles/files/tosudevimosisul.pdfIn PDF document text
  • http://3colorjazz.com/fckeditor/userfiles/image/49301308944.pdfIn PDF document text
  • https://www.beewellrx.com/wp-content/plugins/super-forms/uploads/php/files/v136jn1l9sc22iejlu9mo2pif9kmi9eq/24226112155.pdfIn PDF document text
  • http://fkhd.cz/data/img/17795294933.pdfIn PDF document text
  • http://taiwangallant.com/uploads/files/202109131635359391.pdfIn PDF document text
  • https://coachtourbusrental.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613648a6e8637---rojujogijavara.pdfIn PDF document text
  • https://cplastik.cz/data/cms/file/9355695006.pdfIn PDF document text
  • https://turismo-galicia.es/ckfinder/userfiles/files/36768899840.pdfIn PDF document text
  • http://chhattisgarhsanskritboard.in/sharpinstitute/images/files/kizebesozufaf.pdfIn PDF document text
  • http://allgeology.ru/ckfinder/userfiles/files/wifunivivavatuxiwosojej.pdfIn PDF document text
  • http://tranindo.com/Uploads/userfiles/files/pufesogojepeveniwevisoriz.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=cara+blok+iklan+di+chrome+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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