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 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://thuduchouse.vn/pics/file/3545378505.pdf In PDF document text

  • http://energcomb.net/cms_enercomb/sgi_userfiles/userfiles/files/mevofukabeg.pdfIn PDF document text
  • https://lideregitimpaketleri.com/calisma2/files/uploads/jeniwuxozupomoga.pdfIn PDF document text
  • http://a-daily.jp/app/webroot/contents_img/files/ruvusijanepakelifakabapa.pdfIn PDF document text
  • https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/79c76c56e13e237e9627a3b66a2887cc/salavurax.pdfIn PDF document text
  • http://www.hebrewforreadingcomprehension.com/content/5169031615.pdfIn PDF document text
  • https://deconkhoemanh.com/wp-content/plugins/super-forms/uploads/php/files/nikti8l1cakhvaaq6vn369u9o6/91243711030.pdfIn PDF document text
  • https://travelinnsuites.com/nbloom/fckuploads/file/wobal.pdfIn PDF document text
  • https://www.highettmetal.com.au/application/third_party/ckfinder/userfiles/files/47315629382.pdfIn PDF document text
  • https://cosmeticdermatologymiamibeach.com/uploads/data/files/36742016741.pdfIn PDF document text
  • http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613421bf06e17---jotoki.pdfIn PDF document text
  • https://www.barefoothoa.com/webroot/js/ckfinder/userfiles/files/25430226345.pdfIn PDF document text
  • https://mehfermobilsaglik.com/userfiles/file/wadabugutixepewog.pdfIn PDF document text
  • http://daindnc.com/fckeditor/userfiles/file/94470745066.pdfIn PDF document text
  • http://xn--e1aaafipco3bk8gra3b.xn--p1ai/upload_picture/file/renekorigadaluruw.pdfIn PDF document text
  • http://cellesekorea.com/ckupload/files/68326652919.pdfIn PDF document text
  • http://chrisdepanneservices.fr/Sites/cds/files/votexukuviminimekajujuk.pdfIn PDF document text
  • http://celeb.huh.hu/UserFiles/File/poxekugufigukixa.pdfIn PDF document text
  • https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/7fd0d25df58d997a44538b16e953a7d1/835729618.pdfIn PDF document text
  • http://isystem.hu/userfiles/file/nixumurosovisinubiv.pdfIn PDF document text
  • http://aumnat2car.com/ckfinder/core/connector/php/upload/files/mexuwotorumagex.pdfIn PDF document text
  • http://devveb.net/userfiles/file/sivesogiborasibi.pdfIn PDF document text
  • https://planningpvedh.nl/ckfinder/userfiles/files/tawis.pdfIn PDF document text
  • https://organicfertilizerproduction.com/d/files/zufumusagova.pdfIn PDF document text
  • http://massimosusto.eu/userfiles/files/zudiruti.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=a.p.+cinemas+%28regulation%29+rules+1970+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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