Malicious PDF — malware analysis report

Heuristics 8

• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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 http://chandravanshi.com/userfiles/file/31071948598.pdf In PDF document text

  • http://thepducphat.com/upload/files/lugitor.pdfIn PDF document text
  • http://www.stadion-zarya.ru/ckfinder/userfiles/files/92176869670.pdfIn PDF document text
  • http://xn--z92bzy85x.com/userData/board/file/39903268628.pdfIn PDF document text
  • http://dylogistics.com/userData/board/file/kepumubuzavemikasadamupap.pdfIn PDF document text
  • http://lucidarepavimentimarmogenovaealessandria.it/userfiles/files/jidapifiwovesujaz.pdfIn PDF document text
  • http://beijingteye.com/upload/files/20045121030.pdfIn PDF document text
  • https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1613a642f922ea---maxuvamotatatuwuruwekapa.pdfIn PDF document text
  • http://nomayaku.com/userfiles/file/xotapijedonipekorekel.pdfIn PDF document text
  • http://eros-arena.de/eros/userfiles/file/xojixebesikarabanawof.pdfIn PDF document text
  • http://studiotrusso.it/userfiles/files/zokewebeberivo.pdfIn PDF document text
  • http://eclickapps.in/userfiles/files/57529057333.pdfIn PDF document text
  • https://lisacutler.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135c31fee664---wuvifinezupixovo.pdfIn PDF document text
  • http://another-partner.morefriendship.com/upload/files/dutikojobatizuz.pdfIn PDF document text
  • http://teplo76.ru/uploads/file/sopikiwisotupaveto.pdfIn PDF document text
  • https://sts-cct.com/app/webroot/userfiles/files/92962312757.pdfIn PDF document text
  • https://impactmediaresources.com/userfiles/file/ponowepuralezeguliri.pdfIn PDF document text
  • http://europavloeren.nl/siteimages/file/xedosew.pdfIn PDF document text
  • http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137e57d44a7f---71833811279.pdfIn PDF document text
  • http://www.offshoreyachts.net/web_upload/editor/files/63271716733.pdfIn PDF document text
  • http://spokoino.ru/i/upload/files/wogawumora.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=panda+keymapper+apk+free+downloadPDF link annotation
  • https://cakamuzejs.riga.lv/ckfinder/userfiles/files/zupapewaj.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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