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://inwebjor.ru/uplcv?utm_term=india+vpn+apk PDF link annotation

  • https://espiber.cl/images/uploadedimages/file/63427829848.pdfIn PDF document text
  • http://dulichtantai.com/files/uploaded/files/sebabixo.pdfIn PDF document text
  • http://www.alwaysflorida.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136314967fb0---94383474017.pdfIn PDF document text
  • http://karpatskiles.ru/store/files/jipujobido.pdfIn PDF document text
  • http://saluteebenesseresas.it/userfiles/files/givad.pdfIn PDF document text
  • https://nazrabilisim.com/calisma2/files/uploads/40651528360.pdfIn PDF document text
  • http://mdbim.pl/ubezpiecz/obrazy/file/wabizebevaduzek.pdfIn PDF document text
  • https://blnk.eu/userfiles/files/gisuxuboladoxukerelelane.pdfIn PDF document text
  • http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/1613769a279492---25439762551.pdfIn PDF document text
  • https://cambodiadriverservice.com/userfiles/file/gudogexifoxufelubi.pdfIn PDF document text
  • http://residenceraffaellotorino.com/userfiles/files/36047736435.pdfIn PDF document text
  • http://ambulatorioveterinariopisillibertozzi.eu/userfiles/files/48854610402.pdfIn PDF document text
  • https://sirikulsteel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140e85ece564---telakijot.pdfIn PDF document text
  • http://sns.hu/_user/file/nufupojut.pdfIn PDF document text
  • http://www.scenekunstskolen-efteruddannelsen.dk/ckfinder/userfiles/files/nugijikeromu.pdfIn PDF document text
  • http://liebherr-tr.com/userfiles/file/14180450896.pdfIn PDF document text
  • https://bodegoncriollo.com/userfiles/file/35248724598.pdfIn PDF document text
  • http://lightningriskassessment.com/ci/userfiles/files/miwer.pdfIn PDF document text
  • http://greatwalledmond.com/ckfinder/userfiles/files/givavuw.pdfIn PDF document text
  • http://jpsacademy.com/slbdavbatala/userfiles/file/25886870771.pdfIn PDF document text
  • http://linklandhotels.com/upfile/editor/files/10080222061.pdfIn PDF document text
  • https://thuhuonglacquer.com/uploads/news_file/vijipibuperawerafopa.pdfIn PDF document text
  • https://bfull.ru/uploads/files/viriv.pdfIn PDF document text
  • https://novsport.com/content/File/mabaforeladusuruzem.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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