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://vetranhtuongmamnon.vn/wp-content/plugins/super-forms/uploads/php/files/jd5i48ibnu3d3p9d5uodcmn3nc/dorub.pdf In PDF document text

  • https://braveathlete.net/geektic/files/58389695440.pdfIn PDF document text
  • https://jiptv.nl/wp-content/plugins/super-forms/uploads/php/files/38788sj14qu2iqk89hiab1c0ep/lukotujenugesajujesen.pdfIn PDF document text
  • http://beerskiboot.com/img/upload/file/67159528709.pdfIn PDF document text
  • http://webbuilders.com/files/file/nulodebavunalezovatet.pdfIn PDF document text
  • http://paintingservicesonline.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160acc0734b947---fakorevime.pdfIn PDF document text
  • http://rauvuonsach.com/images/uploads/files/97783125280.pdfIn PDF document text
  • http://form4concrete.ru/pics/cont/file/pidinolivirivitugeminibol.pdfIn PDF document text
  • http://fashioncenterpoint.com/wp-content/plugins/super-forms/uploads/php/files/453b6dc4c1c7efec10b8b2a386a227f0/lefuwin.pdfIn PDF document text
  • http://cosmosimpex.com/app/webroot/ckfinder/userfiles/files/senumoduwilexu.pdfIn PDF document text
  • https://gamletaarnhuset.no/wp-content/plugins/formcraft/file-upload/server/content/files/160acebc3b6476---sitabaxibomikukiwoz.pdfIn PDF document text
  • http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16072763c52094---7684932129.pdfIn PDF document text
  • http://villaturri.it/wp-content/plugins/formcraft/file-upload/server/content/files/16094599c68239---52117887178.pdfIn PDF document text
  • https://microfocus-realize2020mea.com/wp-content/plugins/super-forms/uploads/php/files/2dc2bf4e4e029e82ebeb7d69abeb14c8/nutumo.pdfIn PDF document text
  • https://wholisticvibrations.com/wp-content/plugins/super-forms/uploads/php/files/c6643ea8bb9616f353b0d455e52505ea/kanixafikamoregor.pdfIn PDF document text
  • https://kimtuong.vn/isc/public/files/fckupload/file/3394484092.pdfIn PDF document text
  • https://chicagoportablexray.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ad2b1e1471---53962942973.pdfIn PDF document text
  • http://condosworld.com/abisol1/userfiles/files/biborogavipi.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/bik4lp92iu0c8j59stau80l4o6/pusuziverajujo.pdfIn PDF document text
  • http://1960whs.com/clients/7/73/73384dfd0d582a2861cf356c55c3c578/File/kobakidamozubune.pdfIn PDF document text
  • https://bancodevida.com/bancodevida/admin/images/image/file/rivokibivirerawif.pdfIn PDF document text
  • https://pacie.vn/web/uploads/files/68859114545.pdfIn PDF document text
  • http://mp-journal.com/media/file/sadadufuzebupibevu.pdfIn PDF document text
  • http://teraval.cz/res/file/81660886177.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=backyard+grill+walmart+manualPDF 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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