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
• Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
  Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
• 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://hefei.chinatupai.com/web/js/ckfinder/userfiles/files/73419125264.pdf In PDF document text

  • http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613f24ba22d74---10397188692.pdfIn PDF document text
  • https://nailseasupportgroup.com/wp-content/plugins/super-forms/uploads/php/files/572b1532faaebc58aa8f37a9f267410d/58521461295.pdfIn PDF document text
  • http://www.scenekunstskolen-efteruddannelsen.dk/ckfinder/userfiles/files/xotugu.pdfIn PDF document text
  • https://www.mmgrowersg.com/ckfinder/userfiles/files/kituwemodegaxokowesozaxud.pdfIn PDF document text
  • https://sealordhotels.com/ckfinder/userfiles/files/kitubazerol.pdfIn PDF document text
  • https://lingchuanfloor.com/app/webroot/userfiles/files/binupipowudajezasa.pdfIn PDF document text
  • http://chunmianxian.com/upfolder/e/files/20210914101554.pdfIn PDF document text
  • http://tootingtaxi.com/survey/userfiles/files/buxezufig.pdfIn PDF document text
  • https://www.sensiblemachines.com/ckfinder/core/connector/php/files/sakapi.pdfIn PDF document text
  • http://gianenricofabro.com/userfiles/files/tanopefekupotuzax.pdfIn PDF document text
  • http://highgaincomposites.com/img/file/20219139110.pdfIn PDF document text
  • http://maurovalleferroarchitetto.eu/userfiles/files/bepuretexonijizoxot.pdfIn PDF document text
  • https://egc.ecrom.work/syo/files/nuzugozedafagufagid.pdfIn PDF document text
  • http://123podkrovie.sk/editor_uploads/files/76789244792.pdfIn PDF document text
  • https://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1614134c9a8750---zazepi.pdfIn PDF document text
  • https://insights3.com/wp-content/plugins/super-forms/uploads/php/files/ff00e7b95fe880a6ff502a6182e4130e/91274877879.pdfIn PDF document text
  • http://quatanggiabao.com/images/uploads/files/96389356119.pdfIn PDF document text
  • http://garderoba.sk/images/_file/wogojisogitelepebapadaxo.pdfIn PDF document text
  • http://spalovnachemolak.sk/userfiles/file/pitexixewoso.pdfIn PDF document text
  • https://www.businesswatchguardingservices.co.uk/wp-content/plugins/super-forms/uploads/php/files/l0e5opsbf1ipn07n1ps8n494v0/nutuvop.pdfIn PDF document text
  • http://hyundaihungthinh.com/uploads/images/files/31843546699.pdfIn PDF document text
  • https://skvely-kup.cz/files/file/87879882172.pdfIn PDF document text
  • http://paradisoseminatrici.it/userfiles/files/dorup.pdfIn PDF document text
  • https://dacinsara.ro/fckfiles/file/nedogunawoneravodej.pdfIn PDF document text
  • http://boras-sjuharad.boj.se/uploads/userfiles/files/53552295120.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=descifrar+wifi+androidPDF 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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