Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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 https://elegune.net/files/galeria/files/dibekezukumurelaneteziv.pdf In PDF document text

  • http://5thaveseniors.org/userfiles/file/79036782491.pdfIn PDF document text
  • https://aslplastic.com/ckfinder/userfiles/files/52541401176.pdfIn PDF document text
  • https://zegaoyun.com/calisma2/files/uploads/63959953037.pdfIn PDF document text
  • https://www.andyselfstorage.co.uk/wp-content/plugins/super-forms/uploads/php/files/vr4glasiva1k5cn7urvo35tmmu/23313547261.pdfIn PDF document text
  • https://rpdev.org/ckfinder/userfiles/files/12380565896.pdfIn PDF document text
  • http://alvasari.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607195a25ff52---47301731526.pdfIn PDF document text
  • https://encoregallery.us/wp-content/plugins/super-forms/uploads/php/files/e9a87cd2bb51a769354aca8d6e36fe35/2944293494.pdfIn PDF document text
  • https://prana.video/wp-content/plugins/super-forms/uploads/php/files/dgss219e393ua95nm7q9gvq0pk/35221608703.pdfIn PDF document text
  • https://ambulatorioveterinariosismondi.eu/file/55057821293.pdfIn PDF document text
  • http://mofrantech.com/userfiles/file/93173603091.pdfIn PDF document text
  • https://media-get.com/userfiles/files/liziweb.pdfIn PDF document text
  • http://szakkepzosiklos.hu/upload/file/61911579858.pdfIn PDF document text
  • http://triple-a.co.th/ckfinder/userfiles/files/rolotewix.pdfIn PDF document text
  • http://adveotec.com/img/file/zepavi.pdfIn PDF document text
  • https://maxlinder.com/admin/assets/ckfinder/userfiles/files/64208799724.pdfIn PDF document text
  • http://vnos.vn/app/webroot/uploads/files/12127999362.pdfIn PDF document text
  • http://lws-realestate.com/userfiles/files/50343299122.pdfIn PDF document text
  • http://aprendanow.com/wp-content/plugins/super-forms/uploads/php/files/7bb9d57d7a5cac92ee7e1927f32ed6a0/rosekizasalavijawaxizew.pdfIn PDF document text
  • https://mziagroup.com/wp-content/plugins/super-forms/uploads/php/files/ve6lb5ppc5t3aod94crn0u8a71/47273527647.pdfIn PDF document text
  • http://adbuilder.at/ckfinder/userfiles/files/sotukurifugibunef.pdfIn PDF document text
  • http://immobilieninvestors.eu/userfiles/file/vabilupesiguxumo.pdfIn PDF document text
  • http://danchrisjewelry.com/userfiles/file/6684220141.pdfIn PDF document text
  • http://kwiatmetal.pl/userfiles/file/6312002922.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=ace+academy+control+system+notes+pdfPDF 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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