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
• Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
  Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
• Fake encrypted/secure-document view lure high SE_ENCRYPTED_DOC_LURE
  Document claims to be an encrypted or protected file that must be opened through a 'secure view' link, and the action link uses deceptive infrastructure. This is the secure-document credential-phishing carrier: the page imitates a secure-mail / document-cloud gate while the link leads to a harvesting site. action link to abused redirector.
• 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://jottigo.ru/aws?utm_term=vpn+browser+opera PDF link annotation

  • https://dawemewi.weebly.com/uploads/1/3/4/7/134747996/tudokalifim.pdfIn PDF document text
  • https://guvefivilemu.weebly.com/uploads/1/3/4/3/134397682/36353ed28.pdfIn PDF document text
  • https://cdn.sqhk.co/dokukavifig/Z7gi0gG/11446558513.pdfIn PDF document text
  • http://vivoxasoro.22web.org/2438318019.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4447084/normal_601b7bd9b05aa.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4482629/normal_602550f0c6d3a.pdfIn PDF document text
  • https://cdn.sqhk.co/kominepoli/dzicihl/okta_stock_price_today_per_share.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4392862/normal_5fe6ebc8552c7.pdfIn PDF document text
  • https://cdn.sqhk.co/gilevetu/hbghvRS/international_free_calling_app_iphone.pdfIn PDF document text
  • https://tojewenegekov.weebly.com/uploads/1/3/4/5/134502344/gezeduluwilil_xewokinetorupu_vowixomoku.pdfIn PDF document text
  • https://cdn.sqhk.co/letijefa/ggBLuPB/55698338994.pdfIn PDF document text
  • https://xamezorunag.weebly.com/uploads/1/3/1/6/131606231/radinozotulofologam.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4475582/normal_5feff3bae6f79.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://wavanak.epizy.com/weathering_with_you_sub_espaol.pdfIn PDF document text
  • http://tunowik.epizy.com/animal_crossing_apk_android_full.pdfIn PDF document text
  • 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://scripts.sil.org/OFLIn PDF document text

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