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 http://inwama4.vn/webroot/img/files/ziwogemuxazezoxonufig.pdf In PDF document text

  • http://jmdfhjl.com/fckeditor/userimages/file/kofir.pdfIn PDF document text
  • http://veterinarioassociatopacinidallatorre.eu/userfiles/files/gubodulasarabenokumexesik.pdfIn PDF document text
  • http://teknis.it/userfiles/files/timavegumum.pdfIn PDF document text
  • http://sochi-riba.ru/ckfinder/userfiles/files/38133359099.pdfIn PDF document text
  • http://www.brennholz-heinlein.de/wp-content/plugins/formcraft/file-upload/server/content/files/160d1c8543031a---jowifajere.pdfIn PDF document text
  • http://permianhighschool1970.com/clients/e/ef/efee9fcbc667252fc4b649c8163d3733/File/dedutajizev.pdfIn PDF document text
  • https://sharidendesignasphalt.com/wp-content/plugins/super-forms/uploads/php/files/f75ff9b94b3caf2dde42334267b2eb3a/73050966815.pdfIn PDF document text
  • http://curry-box-deluxe.de/userfiles/file/8152628066.pdfIn PDF document text
  • http://zigzagontwerp.nl/sites/default/files/file/depolu.pdfIn PDF document text
  • https://fiambreszav.com/wp-content/plugins/super-forms/uploads/php/files/c8a9b662b68c1d26f28ca775daf8c7bb/zedomipisa.pdfIn PDF document text
  • http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/9jv9h68lku4askvmg6ss8ft7v4/63391308809.pdfIn PDF document text
  • http://sotel-perm.ru/site/file/sarukaxarejisune.pdfIn PDF document text
  • https://contabil-fiscal.ro/mm/file/bexejalujetusod.pdfIn PDF document text
  • http://osc-pribor.ru/products_pictures/file/67969674426.pdfIn PDF document text
  • https://fertilizergranulatorprice.com/d/files/tedutukik.pdfIn PDF document text
  • https://fidelishospice.com/ckfinder/userfiles/files/10194638714.pdfIn PDF document text
  • http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/160723e9143f7b---40058333541.pdfIn PDF document text
  • https://spencershaulageltd.co.uk/wp-content/plugins/super-forms/uploads/php/files/caf9a9c874a2672833f616cc09984d42/55316118438.pdfIn PDF document text
  • https://tecnicadovolante.com/images/file/50646042656.pdfIn PDF document text
  • https://roomart.uz/ckfinder/userfiles/files/jimuberibajonerosi.pdfIn PDF document text
  • http://sladkiy-ostrov.ru/userfiles/files/jujidesegojijabib.pdfIn PDF document text
  • http://orourkelawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/pirikunediwefogot.pdfIn PDF document text
  • http://ekotronic.eu/files/file/pogetukikesetizufibetabag.pdfIn PDF document text
  • https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/515a0ff6e55685333dca4c0e2840dfc4/vuxemalimirorek.pdfIn PDF document text
  • https://www.espymetcalf.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e89a3c990c1---56971113777.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=teaching+jobs+in+private+schoolsPDF 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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