Malicious PDF — malware analysis report

Heuristics 8

• 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.
• 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 http://sanga.asia/userData/board/file/risibina.pdf In PDF document text

  • http://fitviewer.info/files/file/92495145594.pdfIn PDF document text
  • http://www.evisiontiendaonline.com/ckfinder/userfiles/files/lilepegasuloxovibisafeb.pdfIn PDF document text
  • https://hanyauntuktesting.com/contents/files/51865517443.pdfIn PDF document text
  • http://www.louthadventures.ie/wp-content/plugins/formcraft/file-upload/server/content/files/16139777010bf9---nujezutukubimomuwefigen.pdfIn PDF document text
  • http://rw-hse-businessconsulting.de/userfiles/file/puvixokoworasigaxi.pdfIn PDF document text
  • http://karlsbach.de/userfiles/files/76484217826.pdfIn PDF document text
  • https://leosservices.com/userfiles/file/51462655680.pdfIn PDF document text
  • https://australiancaravancentre.com.au/application/third_party/ckfinder/userfiles/files/maludizanijemetefuji.pdfIn PDF document text
  • http://malbreil.com/userfiles/file/zabudetoxanejebaxel.pdfIn PDF document text
  • http://sccsfz.org/upload/2021-09/40234799199.pdfIn PDF document text
  • https://zapret-rf.org/web/img/podborky/files/65933679690.pdfIn PDF document text
  • http://aqbnb.com/uploadfile/file/putukebadosedu.pdfIn PDF document text
  • https://kurek-rowery.pl/user_pict/file/wenakemijale.pdfIn PDF document text
  • http://poketomecam.com/uploads/files/73418672588.pdfIn PDF document text
  • https://careersourcechipola.com/files/public/tukarulanerapafutivejage.pdfIn PDF document text
  • https://textmakareknutsson.se/upload/image/3632142148.pdfIn PDF document text
  • http://viacaosaopedro.com/www/js/ckfinder/userfiles/files/75546076300.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161405351a3eb0---82796906006.pdfIn PDF document text
  • https://yocarbroker.com/upload/ckfinder/files/28123083965.pdfIn PDF document text
  • https://xuanhongkhang.com/upload/files/wuzalesemelusawawoser.pdfIn PDF document text
  • http://marathon-gexin.com/Uploadfiles/files/28938733973.pdfIn PDF document text
  • http://aminotp.com/upload/files/riwipiboxukinatumuvawodit.pdfIn PDF document text
  • http://www.portofmiamitunnel.com/system/js/back/ckfinder/userfiles/files/zinetevuzabipa.pdfIn PDF document text
  • https://sellos-mecanicos.com/wp-content/plugins/super-forms/uploads/php/files/21c69fe982009332952d47a97dc6d11e/sirobesuzusimimutudipu.pdfIn PDF document text
  • http://barexkft.hu/userfiles/file/niboreniwedabotobukomu.pdfIn PDF document text
  • http://harlit.com/upfiles/file/53452431413In PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=tool+skin+apk+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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