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.
• 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.
• PDF carries website-builder CDN document link farm medium PDF_CDN_PDF_LINK_FARM
  PDF contains many clickable PDF links parked on website-builder CDNs or simple download gateways together with visible ebook, manual, or download lure text. This matches generated SEO document carriers used to route users through untrusted link/download chains; the PDF itself is an inert link carrier.
• 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://cdn-cms.f-static.net/uploads/4387815/normal_5fa5d0c4447d0.pdf In PDF document text

  • https://s3.amazonaws.com/gazitif/bevelena.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4461761/normal_5fa7a9826f8d5.pdfIn PDF document text
  • https://s3.amazonaws.com/jexijer/52307771443.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4378383/normal_5f89fca3dbc02.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367642/normal_5faeefe7617a9.pdfIn PDF document text
  • https://s3.amazonaws.com/voxazedisula/53535501012.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4409826/normal_5fc14dc92a054.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366628/normal_5f8e4bf0a555f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4485718/normal_5fab64179ebfa.pdfIn PDF document text
  • https://s3.amazonaws.com/fosagobomap/22404823072.pdfIn PDF document text
  • https://s3.amazonaws.com/saxefi/72315355748.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4383791/normal_5f8c8a005248c.pdfIn PDF document text
  • https://trafficel.ru/wb?keyword=libertango%20astor%20piazzolla%20sheet%20music%20pianoPDF link annotation
  • https://dadixuva.weebly.com/uploads/1/3/4/0/134018012/3060493.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000c4f9.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000c4f9.bin)
  • https://uploads.strikinglycdn.com/files/5b16d3e2-2540-4925-aea4-0323439f0f97/93082540451.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7c789c04-c106-465c-8d2c-435074b3bc2b/mivagokotawifikudeb.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 extracted file (font_00_sfnt_off0000c4f9.bin)

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