Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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://krisoc.ru/uplcv?utm_term=barriers+of+communication+language PDF link annotation

  • http://iideree.org/wp-content/plugins/formcraft/file-upload/server/content/files/160804859400be---59091595475.pdfIn PDF document text
  • http://worksafeorg.com/wp-content/plugins/super-forms/uploads/php/files/ilr11f4a05k46teva88sjqk1s4/sivozetobitosigogulewik.pdfIn PDF document text
  • http://expertsystemgroup.com/file_media/file_image/file/vowisapogoxopunojodu.pdfIn PDF document text
  • http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/160794e10735fc---pozuzudadoxanigigoguped.pdfIn PDF document text
  • https://www.prestigeautobody.com.au/wp-content/plugins/super-forms/uploads/php/files/d57561400042fa00e08a1d075b012841/gazijupopil.pdfIn PDF document text
  • https://calmoinc.com/upload/editor/file/kunamawetoguraxufenipupo.pdfIn PDF document text
  • http://www.ambredore.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d4977a233b---tekewuzaxidibumokasis.pdfIn PDF document text
  • http://backupcenters.com/userfiles/file/nuvedomu.pdfIn PDF document text
  • http://pferdefreunde-brueckenhof.de/sites/default/files/userfiles/file/nagukinedib.pdfIn PDF document text
  • http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/hpq036g1dot2039bemv5aa14o1/56647298582.pdfIn PDF document text
  • http://www.kreasoft.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160a3bcbcb57f0---3432777812.pdfIn PDF document text
  • https://gamletaarnhuset.no/wp-content/plugins/formcraft/file-upload/server/content/files/160a78f38a4aab---56080602537.pdfIn PDF document text
  • http://www.skup.it/wp-content/plugins/formcraft/file-upload/server/content/files/16098319f38fd5---24416885923.pdfIn PDF document text
  • https://gservicepz.com/wp-content/plugins/super-forms/uploads/php/files/9530dd60291e8bdecae0689845e5f534/kusipaxamafolez.pdfIn PDF document text
  • http://www.optionassurance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1606f8f419621d---tugagakarazimes.pdfIn PDF document text
  • https://worldkelo.com/wp-content/plugins/super-forms/uploads/php/files/128df2974f96952fb54dfdfa110c85db/nazinixoke.pdfIn PDF document text
  • http://a-swiss.com/upload/userfiles/file/79505308678.pdfIn PDF document text
  • http://www.dj-csnl.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609b683f6e632---80435712235.pdfIn PDF document text
  • https://pametnidom.hr/pametne_kuce/userfiles/file/65953363071.pdfIn PDF document text
  • http://katachizu.com/img/news/files/64805443845.pdfIn PDF document text
  • https://dtcprojects.com.au/wp-content/plugins/super-forms/uploads/php/files/8f5joeedbfjvcu0nfaugi6vp2q/bepadugusuwudosar.pdfIn PDF document text
  • https://uleiuri.ro/userfiles/file/kejedosofokepefo.pdfIn PDF document text
  • http://toyotarent.kr/FileData/ckfinder/files/20210618_6DCD3D1F2A10AF62.pdfIn PDF document text
  • http://phuwangnam.com/user_file/file/bijam.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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