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
• 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.
• Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
  Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
• SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
  PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
• 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://seumenha.ru/aws?utm_term=chrome+update++for+windows+10 PDF link annotation

  • https://static.s123-cdn-static.com/uploads/4484999/normal_5ffed38174c04.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4481518/normal_5fd2d1ef5cfd9.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4376379/normal_5fe2cdaad2db9.pdfIn PDF document text
  • http://ewwe.space/70103440752ci12x.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4491173/normal_5ff7bf2c6cf67.pdfIn PDF document text
  • https://gezameluloxeg.weebly.com/uploads/1/3/5/3/135393377/ruwewuvunenu-sovigugujex-rolujadawafobu.pdfIn PDF document text
  • http://ecoterritory.store/50906064343iqfbw.pdfIn PDF document text
  • http://shtangye.xyz/41806089339bbhiv.pdfIn PDF document text
  • http://sethel.xyz/wiluwsf5vr.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://s3.amazonaws.com/jidosatikim/physics_for_cambridge_igcse_revision_guide_answers.pdfIn PDF document text
  • https://s3.amazonaws.com/gewuwasi/19625003698.pdfIn PDF document text
  • https://s3.amazonaws.com/sumesawoxajew/pardon_me_piano_sheet_music.pdfIn PDF document text
  • https://s3.amazonaws.com/bidivo/fanimasitonaxusozokupoxi.pdfIn PDF document text
  • https://s3.amazonaws.com/jesidofefe/28334068073.pdfIn PDF document text
  • https://s3.amazonaws.com/vukujidor/83834751596.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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