Malicious PDF — malware analysis report

Heuristics 6

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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.
• Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
  PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
• 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://traffset.ru/aws?utm_term=roman+toga+bedsheet PDF link annotation

  • https://suxewanevot.weebly.com/uploads/1/3/4/5/134595646/ponovezafimes-mowugiv-notamivudug.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4424347/normal_5fae46502d52c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4451376/normal_5fa793a4395c1.pdfIn PDF document text
  • https://nuzokubipodopu.weebly.com/uploads/1/3/4/7/134732356/4659843.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366408/normal_5fad7893cc956.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/841b1c6e-9ccd-4474-b4b6-b5af85ccf761/cinema_hd_apk_for_android_tv.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4ac9ad90-95b9-4a5e-bda4-3f4169633d0d/mesupedarusamoxuv.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/673c9a36-1e74-4489-9a17-e242f2fd5c06/understanding_guitar_modes.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/91553e8d-7ec0-425a-aa57-bdb0bef2bbb6/kenisetawes.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5ee26df6-38a3-4cf4-a7b1-a842c0d6a545/42782075957.pdfIn PDF document text
  • https://s3.amazonaws.com/mizeteb/xubikolopedej.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f1704299-a0cf-4a1e-8ea1-7c0371fe2a16/carl_zeiss_ag_annual_report_2018.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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