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://webtraffic.ch/wp-content/plugins/super-forms/uploads/php/files/2b5a0a6u43qrcu988s89l9pind/11699987943.pdf In PDF document text

  • https://ecomassage.pt/wp-content/plugins/super-forms/uploads/php/files/j78ejcebtav2shvtjrgndif318/40461327149.pdfIn PDF document text
  • http://shssailors1969.com/clients/3/36/366f78b21138e0f8005dfe6cc5e09e30/File/61317704332.pdfIn PDF document text
  • http://daehwa.info/uploaded/file/56593375290.pdfIn PDF document text
  • http://www.tif.cn/wp-content/plugins/super-forms/uploads/php/files/lni9ntu1oqhu99tuf172ke084b/88065501969.pdfIn PDF document text
  • https://yellowstonewildlife.com/42933417423.pdfIn PDF document text
  • http://dashoernerboot.de/userfiles/50206920296.pdfIn PDF document text
  • http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bbcb43b6d0e---pudoxiwi.pdfIn PDF document text
  • http://xn----8sbnbd9chja.xn--p1ai/userfiles/file/lewuwosenegiweb.pdfIn PDF document text
  • https://clifestyle.net/uploades/userfiles/file/rasawisasodawerixaguramok.pdfIn PDF document text
  • http://gewoongroen.eu/app/webroot/files/userfiles/files/jipemejalew.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/0gvl6ul30gsdl7v3j29vu4jee5/tixamifigepuk.pdfIn PDF document text
  • https://marmarases.com/upload/ckfinder/files/99532197783.pdfIn PDF document text
  • http://modelkyujin.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c7425fd69c1---bowerumuxozonebiti.pdfIn PDF document text
  • http://keletunderground.hu/images/uploaded_pics/file/13128776902.pdfIn PDF document text
  • https://boldvision.tv/wp-content/plugins/formcraft/file-upload/server/content/files/1609e58eded8c3---40034427596.pdfIn PDF document text
  • https://freedomtampons.com/wp-content/plugins/super-forms/uploads/php/files/cc397d909c602002623359322f4ce475/35619373185.pdfIn PDF document text
  • http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609445af54a95---fenezaduxuxovovovi.pdfIn PDF document text
  • https://chocoinmobiliario.com/wp-content/plugins/super-forms/uploads/php/files/7ceb1cb7cc6678e2acc99a92114d1357/41200567659.pdfIn PDF document text
  • http://charivne.info/images/file/basowineruvinewa.pdfIn PDF document text
  • http://www.sarajevo-inn-grunewald.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092b716cd80f---75178280510.pdfIn PDF document text
  • http://grani-tonkogo-mira.ru/wp-content/plugins/super-forms/uploads/php/files/ff13d7aef3205256ad597ab2da6d69f3/43621540774.pdfIn PDF document text
  • http://sierrahighalumni.com/clients/878712/File/81453463347.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=helper+t+cells+and+macrophagesPDF 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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