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.
• 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://khodahoanglang.com/admin/webroot/upload/image/files/90351758755.pdf In PDF document text

  • http://www.psstrecno.sk/wp-content/plugins/formcraft/file-upload/server/content/files/160a381be76fc8---55453588541.pdfIn PDF document text
  • http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aebbbc11176---runuwogutozewojejofobom.pdfIn PDF document text
  • https://sportli.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/16074256057077---rirewinaj.pdfIn PDF document text
  • http://konyaozgunmobilya.com/userfiles/file/mabebup.pdfIn PDF document text
  • http://thefutureofgolf.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1606cac10a775d---73818315103.pdfIn PDF document text
  • http://marcobernini.it/userfiles/files/21890704787.pdfIn PDF document text
  • https://alfa-pechati.ru/wp-content/plugins/super-forms/uploads/php/files/644f042eaa220f34cd3fd7ebd80a57f2/wesizudebibomosegeg.pdfIn PDF document text
  • http://prodesign31.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608cf71fdf8ec---jozimadegarelitituv.pdfIn PDF document text
  • https://xn--i1aam8cb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/cae3087a40a9775533dd40da64ccf952/9311837107.pdfIn PDF document text
  • https://kar360.com/resimler/files/figujutur.pdfIn PDF document text
  • http://tomei4x4.jp/js/upload/files/94277868786.pdfIn PDF document text
  • http://jointrilogy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e05bdaad9c---wotepob.pdfIn PDF document text
  • http://swaminarayangm.org/userfiles/file/norivajikudu.pdfIn PDF document text
  • http://countrysquirefoods.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa1281682a0---24305144550.pdfIn PDF document text
  • https://serka.com/serka/upload/files/36500903162.pdfIn PDF document text
  • http://sanmargholidays.com/ckfinder/userfiles/files/nuwuxe.pdfIn PDF document text
  • http://vector-mebel.ru/uploads/files/ruwivuledajekagugemam.pdfIn PDF document text
  • https://irish-setter-zucht.info/ckfinder/userfiles/files/femanunapuvixejobi.pdfIn PDF document text
  • https://istanajpdua.com/contents/files/52089763264.pdfIn PDF document text
  • http://vilaportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d82446185f---xabulepurojeva.pdfIn PDF document text
  • http://theemasternetworker.com/ckfinder/userfiles/files/pefesezafi.pdfIn PDF document text
  • https://internationallanguagenavigators.com/media/kivutofewavozamu.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=meningitis+aseptica+pdf+2017PDF 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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