Malicious PDF — malware analysis report

Heuristics 7

• 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 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://artkulinaria.pl/sites/default/files/file/24239914338.pdf In PDF document text

  • http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fad5bb9ca05---fuwituvu.pdfIn PDF document text
  • http://waetsukai.jp/system/ckfinder/userfiles/files/34588691210.pdfIn PDF document text
  • http://hpworld.hu/data/pic/Image/file/zobijid.pdfIn PDF document text
  • http://chinhsuasolieu.com/media/files/81831915985.pdfIn PDF document text
  • https://tpk-m.ru/files/file/78458745849.pdfIn PDF document text
  • https://cottingham-group.com/cufiles/files/torowuzadomutewe.pdfIn PDF document text
  • https://psfund.org/public/uploads/files/cms_files/tebijifiwizemupowek.pdfIn PDF document text
  • http://urgentcarepb.com/userfiles/file/93427730171.pdfIn PDF document text
  • https://psychotherapie-dr-albrecht.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b13e43a4567---57738353229.pdfIn PDF document text
  • http://benly-carson.com/product/files/94262598879.pdfIn PDF document text
  • http://webdulich.com/js/ckfinder/userfiles/files/karawojufuridijofe.pdfIn PDF document text
  • https://www.hontoys.com.au/wp-content/plugins/super-forms/uploads/php/files/k8fmeditr84cq3cdar9kodakna/38625914849.pdfIn PDF document text
  • http://capitolmetrophysicaltherapy.com/userfiles/file/xibudeke.pdfIn PDF document text
  • http://payassistinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c84489e84a---zazogevezolipuleg.pdfIn PDF document text
  • http://www.village-gaulois.org/gestion/ckfinder/userfiles/files/noderesevilipadipinise.pdfIn PDF document text
  • https://diversifiedhumansolutions.com/wp-content/plugins/super-forms/uploads/php/files/cf1d5cf21319c2415a210ec60edd7524/sesewigalimidunapox.pdfIn PDF document text
  • https://vivaldiroberto.com/img/files/mediafiles/file/42866528160.pdfIn PDF document text
  • https://www.vibrationmonitoring.asia/wp-content/plugins/formcraft/file-upload/server/content/files/160bbd5725f55e---govisunukiluzebo.pdfIn PDF document text
  • http://wf515345.tw/CKEdit/upload/files/sakapisusorejuzo.pdfIn PDF document text
  • http://socialbomjesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160ad97253bbda---27701160467.pdfIn PDF document text
  • http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/ifvl91uq5hid38oo1rvamqihe0/25107197689.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=hipertiroidismo+pdf+elsevier+2016PDF 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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