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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://yarsan.ru/wp-content/plugins/super-forms/uploads/php/files/7c142488ad0caba66abb6137a4ec8c5a/99793180502.pdf In PDF document text

  • http://libertyquad72.fr/userfiles/file/36749072262.pdfIn PDF document text
  • https://dolaodong.com/userfiles/file/dodadufonide.pdfIn PDF document text
  • http://alpha-cp.com/userfiles/file/11245547568.pdfIn PDF document text
  • https://kvartira-zalog.ru/wp-content/plugins/super-forms/uploads/php/files/ff1c4c83fdee327c3f259d9d35288868/morunapumawuwaviri.pdfIn PDF document text
  • https://tasivn.com/upload/ck/files/63188920458.pdfIn PDF document text
  • http://sameiroeventos.pt/ficheiros/4412283061.pdfIn PDF document text
  • https://apparel.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/81daa2aa831e7857bc5cd4b87e39c95c/55859798931.pdfIn PDF document text
  • http://trungtinjsc.vn/upload/FCK/file/63091276477.pdfIn PDF document text
  • http://www.awakohchang.com/image/upload/File/uruvo.pdfIn PDF document text
  • http://braciszewska-klimek.pl/fck_files/file/wutimijedeporojep.pdfIn PDF document text
  • http://exito-opakowania.pl/userfiles/file/dekunifanafuvajixekogiril.pdfIn PDF document text
  • https://communeouchamps.fr/userfiles/file/19273774242.pdfIn PDF document text
  • http://rszm88.com/upfolder/e/files/20210804005115.pdfIn PDF document text
  • http://polimak.pl/userfiles/file/12916904474.pdfIn PDF document text
  • http://quickfix-poland.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0d4835e5ce---14419389166.pdfIn PDF document text
  • http://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/46d3724e2eb8bb6fcc1696d5f7159c30/44576957560.pdfIn PDF document text
  • http://sjhrz.com/images/upload/File/79508849329.pdfIn PDF document text
  • https://baglab.pl/galeria/file/96101998989.pdfIn PDF document text
  • http://suacona.com/clients/16856/File/nutozadupa.pdfIn PDF document text
  • https://nieruchomosciturystyczne.eu/files/file/nudab.pdfIn PDF document text
  • https://www.avenueroadadvertising.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bf339dc5dd2---36174644381.pdfIn PDF document text
  • https://sipsib.ru/wp-content/plugins/super-forms/uploads/php/files/01a80c9740821f55b54130cceb84eaa4/xufafusot.pdfIn PDF document text
  • http://www.anclupnapoli.it/userfiles/file/37603236779.pdfIn PDF document text
  • http://sinostandards.net/upload/files/42904491528.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=physics+galaxy+mechanics+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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