Malicious PDF — malware analysis report

Heuristics 8

• 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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
  PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
• 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://humble-brag.com/wp-content/plugins/super-forms/uploads/php/files/doojgprd730ikqacesgkhdalle/84579275903.pdf In PDF document text

  • http://jamoncup.es/wp-content/plugins/formcraft/file-upload/server/content/files/160987766baffc---26214422376.pdfIn PDF document text
  • http://gmicropilotes.com/uploads/files/fuvafogemikuvukulu.pdfIn PDF document text
  • https://www.grandiosa.is/wp-content/plugins/super-forms/uploads/php/files/rh3dmjjq1sopmhgmaovi3roma1/36609744582.pdfIn PDF document text
  • http://atomleasing.ru/media/File/5183402038.pdfIn PDF document text
  • http://castel.lu/userfiles/files/34722750585.pdfIn PDF document text
  • http://anhuifan.com/upload_fck/file/2021-5-17/20210517163032977786.pdfIn PDF document text
  • https://khanikango.in/file/42580509472.pdfIn PDF document text
  • https://gresathouse.com/wp-content/plugins/super-forms/uploads/php/files/7462579292adff213332b84b9d9256e9/68992459643.pdfIn PDF document text
  • http://afghansolar.com/userfiles/file/57930967327.pdfIn PDF document text
  • http://157.230.241.115/image/upload/File/tutikivusu.pdfPDF link annotation
  • https://m-co.de/wp-content/plugins/super-forms/uploads/php/files/bvqecgeemgqtlbeq3p2mocn9rq/vuzogorok.pdfIn PDF document text
  • http://massimomoroni.it/userfiles/files/72098377429.pdfIn PDF document text
  • http://www.39koratmachinery.com/file_upload/files/19429439075.pdfIn PDF document text
  • http://www.supercarrentalsofmiami.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e6270ec2f0---28659847338.pdfIn PDF document text
  • https://kompaspt2.com/contents//files/gatupupasimapipige.pdfIn PDF document text
  • http://jjw-led.com/userfiles/file/71780639671.pdfIn PDF document text
  • https://alsterparkett.de/wp-content/plugins/super-forms/uploads/php/files/j1jc5k912eba6h0jn8hai5457i/37182338070.pdfIn PDF document text
  • http://belovosushi.ru/files/benapawekozuxegij.pdfIn PDF document text
  • https://bahceneryaman.net/public/content-images/files/loxugi.pdfIn PDF document text
  • https://pirkitpadangas.lt/ckfinder/userfiles/files/12297006042.pdfIn PDF document text
  • http://ambulatorioveterinariocigliano.com/userfiles/files/32809842907.pdfIn PDF document text
  • https://www.prowallpanama.com/wp-content/plugins/super-forms/uploads/php/files/889c276ae50f8d63dbfcdbbd6d3817df/58843967778.pdfIn PDF document text
  • http://xn--80aagkbrca3apkgkee0a1bi.xn--p1ai/ckfinder/userfiles/files/mabeg.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=macmillan+mathematics+5a+teacher%27s+guide+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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