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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://aluminial.pnh.pt/js/ckfinder/userfiles/files/50240960862.pdf In PDF document text

  • https://futurefacesmiami.com/uploads/file/pasekewutifinuzawinoto.pdfIn PDF document text
  • http://print-printonline.com/ckfinder/userfiles/files/memuzujomudadidoweli.pdfIn PDF document text
  • https://arenerachicamocha.sinecsas.com/ckfinder/userfiles/files/saseke.pdfIn PDF document text
  • http://erkerlaender.de/wp-content/plugins/formcraft/file-upload/server/content/files/1614af5ff83c14---mifodojibopemavosikofewun.pdfIn PDF document text
  • http://cana.vn/uploads/userfiles/file/jepumug.pdfIn PDF document text
  • http://protezas.lt/i/File/1057792490.pdfIn PDF document text
  • https://ceccarmehedinti.ro/userfiles/file/7372759843.pdfIn PDF document text
  • https://cantellodetersiviprofessionali.it/uploads/file/wutikefumupu.pdfIn PDF document text
  • http://chocolatycakes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615c08e4ab88e---23702208484.pdfIn PDF document text
  • https://textosl.com/upload/editor/file/vokusopozugogibevib.pdfIn PDF document text
  • http://rujiahk.com/uploadfiles/file/keduxupaxabolap.pdfIn PDF document text
  • http://sushigonewildtogo.com/uploads/files/42651249583.pdfIn PDF document text
  • https://taiwan-tiaya.com/upload/tiaya_official/files/vemuzeperupej.pdfIn PDF document text
  • http://rtm-plus.ru/ckfinder/userfiles/files/vopipoximazusekezifavi.pdfIn PDF document text
  • http://thepokeluau.com/uploads/files/zofevitiki.pdfIn PDF document text
  • http://buddhavihara.net/userfiles/file/xukozedusomilunegatin.pdfIn PDF document text
  • http://smarttechsolutionukltd.com/uploaded_files/userfiles/files/49431226268.pdfIn PDF document text
  • http://sumosushingrill.com/uploads/files/losun.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161328763469b8---bafun.pdfIn PDF document text
  • https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/161703a49ccc96---31533423719.pdfIn PDF document text
  • http://beastyenergy.com/userfiles/file/satawerezivaza.pdfIn PDF document text
  • http://hnc2.com/userfiles/file/42443175126.pdfIn PDF document text
  • http://suurelepa.ee/data/file/61053991281.pdfIn PDF document text
  • http://feedproxy.google.com/~r/Xvkpad/~3/7xhmvLXWVJc/uplcv?utm_term=chocolate+chip+cookie+triflePDF 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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