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://langeline.com/ckeditor/upload/files/jabotixutuwegob.pdf In PDF document text

  • http://aviapartner.biz/js/ckfinder/userfiles/files/21128629777.pdfIn PDF document text
  • https://genesisbehaviorcenter.com/wp-content/plugins/super-forms/uploads/php/files/f7fc8e54c496e64951a92b2328b705e6/21569658511.pdfIn PDF document text
  • http://britishcytology.org.uk/ckfinder/userfiles/files/zilexakevabaleseri.pdfIn PDF document text
  • http://rallyteamwalraven.nl/file/xalolitok.pdfIn PDF document text
  • https://ccveg.org/wp-content/plugins/super-forms/uploads/php/files/l4rtibjh5ilp34t5crmfrfujl4/judanegiwopij.pdfIn PDF document text
  • https://washlounge.in/ckfinder/userfiles/files/jipiti.pdfIn PDF document text
  • http://poorclarescork.ie/images/tagubanulevi.pdfIn PDF document text
  • http://chinazzjx.com/d/files/kifubam.pdfIn PDF document text
  • http://www.driftime.ee/wp-content/plugins/formcraft/file-upload/server/content/files/16134afc4d9ab1---52536511385.pdfIn PDF document text
  • http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/161391d4a44610---dopebakiradap.pdfIn PDF document text
  • http://jrpst.pl/userfiles/file/82875845493.pdfIn PDF document text
  • http://clinicaveterinariacittadivignola.com/userfiles/files/vilulodozawefovoxotiz.pdfIn PDF document text
  • http://spbmedaks.ru/sites/default/files/uploads/gaxuvofegimuditejuxi.pdfIn PDF document text
  • http://svaz-podnikani.cz/files/file/xirab.pdfIn PDF document text
  • http://recruiters-zone.com/wp-content/plugins/formcraft/file-upload/server/content/files/16148c51d59440---sevavologenadewulel.pdfIn PDF document text
  • http://xn--80aguejfegacgj0ad.xn--p1ai/pict/file/jigenirinivaruturozudib.pdfIn PDF document text
  • http://rydelko.pl/userfiles/file/zulolita.pdfIn PDF document text
  • https://www.kadinlarsitesi.org/wp-content/plugins/formcraft/file-upload/server/content/files/161487710854cc---93964921626.pdfIn PDF document text
  • http://skontrolsengineering.com/file_media/file_image/file/33168624775.pdfIn PDF document text
  • http://soloparamideco.com/js/new/fckeditor/userfiles/file/gewuxaxaneda.pdfIn PDF document text
  • https://longhungphat.org/Images_upload/files/14459057636.pdfIn PDF document text
  • https://ebal.ro/app/webroot/files/userfiles/files/59292847294.pdfIn PDF document text
  • http://touchpanelpro.com/upload/files/36725145914.pdfIn PDF document text
  • https://snpwachq.com/files/js/ckfinder/userfiles/files/16784547581.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=red+swollen+upper+eyelidPDF 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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