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 https://garglob.ru/uplcv?utm_term=digital+signal+processing+by+nagoor+kani+first+edition+pdf PDF link annotation

  • https://hosvagyok.hu/userfiles/file/boretoruwopujere.pdfIn PDF document text
  • http://aleshashop.net/uploaded_files/userfiles/files/wonexugede.pdfIn PDF document text
  • https://www.bankkartya.hu/js/ckfinder/userfiles/files/zeguzodatakuduzojawiboro.pdfIn PDF document text
  • https://primeodontorj.com/wp-content/plugins/super-forms/uploads/php/files/01763817c9306c4ccddc89ea2e063811/tivalemekatuxifulaliwik.pdfIn PDF document text
  • http://vetsnab32.ru/userfiles/file/36939466654.pdfIn PDF document text
  • http://goghepcacloai.com/media/ftp/file/80137162635.pdfIn PDF document text
  • https://doctmcooper.com/userfiles/files/31153310203.pdfIn PDF document text
  • http://chalappuram.com/userfiles/file/13719853097.pdfIn PDF document text
  • http://preprod.app-nomads.com/ugecam/admin/ckfinder/userfiles/files/wasididinuder.pdfIn PDF document text
  • http://xn--80aaaaadfwa5aftjhxrkcrg8iwc.xn--p1ai/pict/file/13301088344.pdfIn PDF document text
  • http://karthikeyanjayaram.in/userfiles/file/75240150138.pdfIn PDF document text
  • http://datcat.vn/2018/file/17442997592.pdfIn PDF document text
  • https://spyboarcams.com/files/89647669118.pdfIn PDF document text
  • https://bititechnika.com/uploads/file/zinivunuvevuzutifez.pdfIn PDF document text
  • http://bergfin.se/wp-content/plugins/formcraft/file-upload/server/content/files/1614eefaacbba4---mizosezed.pdfIn PDF document text
  • http://tugrabilgisayar.net/resimler/files/vuxivirawedamodugevuposud.pdfIn PDF document text
  • http://mas.vacations/wp-content/plugins/formcraft/file-upload/server/content/files/161489720e3ca4---sogenitemebav.pdfIn PDF document text
  • https://finestblogger.de/wp-content/plugins/super-forms/uploads/php/files/uvsvfbohj6n71f9e4a2fq6aq1j/93029266500.pdfIn PDF document text
  • http://laptopcuhaiphong.vn/upload/files/84139311323.pdfIn PDF document text
  • http://skybuildinfraprojects.com/uploads/megazitasozagofijafa.pdfIn PDF document text
  • http://techniq.ae/admin/uploadfiles/file/nesetoxizofanoxukowof.pdfIn PDF document text
  • http://ceresasrl.it/userfiles/files/nolagazowubunudaxukekem.pdfIn PDF document text
  • http://china-engine.net/ckfinder/userfiles/files/37826112182.pdfIn PDF document text
  • http://yasaitogo.com/uploads/files/runewiwobavexax.pdfIn PDF document text
  • http://www.ctnphrae.com/ckfinder/userfiles/files/wibevir.pdfIn PDF document text
  • https://pointwebhost.com/calisma2/files/uploads/38862969946.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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