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 https://chcial.ru/uplcv?utm_term=roaring+heights+sims+3+free+download PDF link annotation

  • http://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/48c1a8eef892bb42268aa947a66ebe39/39924633775.pdfIn PDF document text
  • http://www.psstrecno.sk/wp-content/plugins/formcraft/file-upload/server/content/files/160bf93477387d---6506806689.pdfIn PDF document text
  • http://cricalliance.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607dcef33a759---nirinesix.pdfIn PDF document text
  • http://airholic.com/UpFiles/WebEditorFiles/file/29594980702.pdfIn PDF document text
  • http://onishi-kyosendo.jp/archive/sojuwafosipiporovugumoji.pdfIn PDF document text
  • https://www.grandeprairie.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a7f2e2474ff---28472868718.pdfIn PDF document text
  • https://serka.com/serka/upload/files/84719045331.pdfIn PDF document text
  • https://canvasations.com/wp-content/plugins/super-forms/uploads/php/files/192qib2oc955hnj8ooo8j5lk87/6924104962.pdfIn PDF document text
  • http://gialtour.it/themes/userfiles//files/76665822336.pdfIn PDF document text
  • http://pmdrecycling.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086dc1c2cce8---76955892515.pdfIn PDF document text
  • http://learnazia.com/fck/imagesfile/66305221383.pdfIn PDF document text
  • http://jghsclass75.com/clients/f/f3/f322050927ea28328664fd088939ffaa/File/87177849982.pdfIn PDF document text
  • http://maxtarget.by/ckfinder/userfiles/files/lubusujuboveketaxibadanom.pdfIn PDF document text
  • https://transcendenceit.com/wp-content/plugins/super-forms/uploads/php/files/6bdec23d4fe4514e4d9c5b4c03310f01/57105603131.pdfIn PDF document text
  • https://refour.eu/wp-content/plugins/super-forms/uploads/php/files/20c00134549f23b9acba846a04f6ab9d/58528224561.pdfIn PDF document text
  • https://bankkartya.hu/js/ckfinder/userfiles/files/xumoxixizuvemawamabexepe.pdfIn PDF document text
  • http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b082fcbadee---53857908350.pdfIn PDF document text
  • http://hevolta.com/upload/file/96857485191.pdfIn PDF document text
  • http://muzeumostrowiec.pl/obrazy/file/sodusojezupila.pdfIn PDF document text
  • http://energo-winstal.pl/userfiles/file/rinaditoletonobuv.pdfIn PDF document text
  • https://www.sharpeningfactory.com/wp-content/plugins/formcraft/file-upload/server/content/files/160772099d4d75---27751434649.pdfIn PDF document text
  • https://legacyltg.com/wp-content/plugins/super-forms/uploads/php/files/378dbd1bdf5a327bd2b3df652eaaaab4/2764769869.pdfIn PDF document text
  • http://www.kreasoft.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1608ce8a02f446---16832735730.pdfIn PDF document text
  • http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/lspe00ndngi995nfv093v456d2/zuvixo.pdfIn PDF document text
  • 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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