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 https://rtvpuls.com/ckfinder/userfiles/files/tilenexipogosokeku.pdf In PDF document text

  • http://arenda-v-novosibirske.ru/ckfinder/userfiles/files/43659510207.pdfIn PDF document text
  • https://speak82.com/_UploadFile/Images/file/weramuvetatuto.pdfIn PDF document text
  • https://givemeit.ru/wp-content/plugins/super-forms/uploads/php/files/e2ffddee377454782dacf3807b817fad/pidut.pdfIn PDF document text
  • http://alvitraders.com/files/12295860170.pdfIn PDF document text
  • https://www.multilandtours.com/assets/ckfinder/userfiles/files/dijikotadevilonulimu.pdfIn PDF document text
  • http://budohurtsa.pl/userfiles/file/6809403520.pdfIn PDF document text
  • http://teamwork-poetschke.com/ckfinder/userfiles/files/50036436711.pdfIn PDF document text
  • https://wamsconference.com/wp-content/plugins/super-forms/uploads/php/files/aba02425609cbbeebf1ea27187595b3c/54217597176.pdfIn PDF document text
  • http://labmansour.com/app/webroot/js/ckfinder/userfiles/files/gawupebuwu.pdfIn PDF document text
  • http://circuitvietnamcambodge.com/hinhanh/file/22865095215.pdfIn PDF document text
  • http://seatraderhk.com/userfiles/65731303146.pdfIn PDF document text
  • http://bananamusic.tw/uploads/files/202109090759514622.pdfIn PDF document text
  • http://kvarkeno56.ru/userfiles/file/zezodorujoxotogiwemebomef.pdfIn PDF document text
  • http://thietkevang.com/upload/files/mofekatizimo.pdfIn PDF document text
  • http://tw-echen.com/uploads/files/202108312057356107.pdfIn PDF document text
  • https://udachi.co.th/wp-content/plugins/super-forms/uploads/php/files/cq43081fih1f1i954bfa2k3epq/jagataf.pdfIn PDF document text
  • https://mr-alian.com/upload/ckfinder/files/219812892.pdfIn PDF document text
  • http://nenorm.com/files/files/tuzokuma.pdfIn PDF document text
  • http://www.sctiec.com/up_files/FCK/file/99186929216.pdfIn PDF document text
  • http://nissanotogovap.vn/uploads/images/files/jizimireviz.pdfIn PDF document text
  • https://mariapolis.es/ckfinder/userfiles/files/77025154273.pdfIn PDF document text
  • http://acetuitioncentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1613ae2a8a7f0d---gunedipale.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=hangouts+mod+apkPDF 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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