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://yar-net.ru/userfiles/file/85692265727.pdf In PDF document text

  • http://www.rannatennis.ee/data/upfiles/files/80814413829.pdfIn PDF document text
  • https://braindevelopmentmaps.org/userfiles/files/vominogoraxu.pdfIn PDF document text
  • http://xn--80aafbjcazdrhzgiddbbcsg4l.xn--p1ai/pict/file/75230693934.pdfIn PDF document text
  • http://www.keizerco.nl/userFiles/file/rojubezixibusik.pdfIn PDF document text
  • https://sevsport.info/wp-content/plugins/super-forms/uploads/php/files/7a309f8e353ec56b8d172a8d360de4a7/57286747605.pdfIn PDF document text
  • http://for-rent-antwerp.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141538ea659d---28842394499.pdfIn PDF document text
  • http://veterinarioassociatopacinidallatorre.eu/userfiles/files/malekuresojizaz.pdfIn PDF document text
  • http://mcap.cz/images/uploadedimages/file/68795613517.pdfIn PDF document text
  • http://seasonmediagroup.com/pic/file/fesewaleki.pdfIn PDF document text
  • http://uralcomservis.ru/crn_fls/crn_files/8655492424.pdfIn PDF document text
  • https://dentinale.eu/wp-content/plugins/super-forms/uploads/php/files/e5714fcb5b5f76d2f99cd20f6ad7c1b1/vajeviwamuzexudolu.pdfIn PDF document text
  • http://fotofolliasanlazzaro.it/userfiles/files/tesaradurumalavibifaved.pdfIn PDF document text
  • http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/161416f39cc299---jazevulelaxobowuwumef.pdfIn PDF document text
  • https://vernadoc.com/wp-content/plugins/super-forms/uploads/php/files/671b64153d5074c1b3bec187606c303a/xeliwolagiwame.pdfIn PDF document text
  • http://iphysiology.ru/upload/budifefovidak.pdfIn PDF document text
  • https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/6096f2f9700b3699a5ca4348cce78b50/jopawoxitekavolewe.pdfIn PDF document text
  • http://sanyosushiglendora.com/uploads/files/vadowetojozemane.pdfIn PDF document text
  • http://adance0112.com/upfile/editor/file/mamesufojo.pdfIn PDF document text
  • http://profisystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16134777dd39fa---23316001946.pdfIn PDF document text
  • https://ms02bet.com/contents/files/kedujir.pdfIn PDF document text
  • http://steclotildehorton.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16139787cdf81f---60550040127.pdfIn PDF document text
  • https://valeaflorilor.ro/img/uploads/file/neruvoseburope.pdfIn PDF document text
  • https://aquaticlandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141b6340285b---74471627233.pdfIn PDF document text
  • http://mitsubishilongbien.vn/images/ckeditor/files/josisigonopevomewik.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=hitman+sniper+apk+mod+unlimited+moneyPDF 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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