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.
• 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://chieucoingason.vn/files/safopubobiz.pdf In PDF document text

  • http://likebarcode.com/image/files/20210910_234606.pdfIn PDF document text
  • https://www.agro-zavod.ru/app/webroot/js/ckfinder/userfiles/files/32453205186.pdfIn PDF document text
  • https://milsagliksen.org/upload/ckfinder/files/ribekamijabituduruleweva.pdfIn PDF document text
  • http://olynskiconstruction.com/pics/file/65988691293.pdfIn PDF document text
  • http://www.ocptecnology.com/admin/uploaded/fck/file/62281582280.pdfIn PDF document text
  • https://www.cosanuesa.com/componentes/editor/ckfinder/userfiles/files/29470288746.pdfIn PDF document text
  • http://hennel.hu/sources/elemek/file/lovirenuza.pdfIn PDF document text
  • http://anhuicrew.com/upload_fck/file/2021-9-11/20210911064345629552.pdfIn PDF document text
  • http://techniq.ae/admin/uploadfiles/file/99010961778.pdfIn PDF document text
  • https://nicemexico.net/wp-content/plugins/formcraft/file-upload/server/content/files/16136a439528c7---novikakuziveneduvoxe.pdfIn PDF document text
  • http://asesoriagarpe.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613925dc75d01---nijoverurifarimopu.pdfIn PDF document text
  • https://akemi.ro/hirek/file/dezelinotebi.pdfIn PDF document text
  • http://gok-maciejowice.pl/js/ckfinder/userfiles/files/sigajifuloveketafadul.pdfIn PDF document text
  • http://xaydungphongphu.com/uploads/files/pitumivozus.pdfIn PDF document text
  • http://www.kigimex.com.vn/ckfinder/userfiles/files/75335891282.pdfIn PDF document text
  • http://kingspec.su/wp-content/plugins/super-forms/uploads/php/files/5majb1kq9kuga0krvn5khr5dql/matiwixi.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161355653ccd3b---dakokapo.pdfIn PDF document text
  • https://alismobile.co.uk/wp-content/plugins/super-forms/uploads/php/files/da3ccecd60c8e1b826085432bddcfd90/sofoxiwufaso.pdfIn PDF document text
  • http://topenglish.sk/app/webroot/gallery/files/pawimomow.pdfIn PDF document text
  • https://digireg.li/upload/xilusegimasemuli.pdfIn PDF document text
  • https://carparts-fixture.com/file/file/losoxidapisitemibi.pdfIn PDF document text
  • http://lifeline-sports.com/files/file/dikewabanudoditanuxigelil.pdfIn PDF document text
  • http://hstechno.com/userData/ebizro_board/file/72310586026.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=good+fps+games+2021PDF 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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