Malicious PDF — malware analysis report

Heuristics 5

• 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?keyword=games+bomb+it+2 PDF link annotation

  • https://zonebudufekepok.weebly.com/uploads/1/3/4/3/134382159/6691228.pdfIn PDF document text
  • https://tejigenunonim.weebly.com/uploads/1/3/0/8/130813632/xebopuviban.pdfIn PDF document text
  • https://wajiresejepo.weebly.com/uploads/1/3/0/7/130774962/dowubuna.pdfIn PDF document text
  • https://vapesokon.weebly.com/uploads/1/3/4/3/134329795/fatizu-rowuzesibaxo.pdfIn PDF document text
  • https://maludanojuwido.weebly.com/uploads/1/3/4/5/134591959/875daf6e91aab4.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://www.daltonmaag.com/In PDF document text
  • https://s3.amazonaws.com/jofunoje/how_to_schedule_a_meeting_in_outlook_with_microsoft_teams.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1270a4df-b03e-43cf-8bba-00800a40ba49/gorolixorirarade.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/235f541a-61cb-49b6-b15f-2b96452e5821/fifuxasigoxigepu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/54d60bd7-c089-493d-a00d-7f03b4a15745/dakenoxozijokozevuk.pdfIn PDF document text
  • https://s3.amazonaws.com/jufowokedunod/zejomefetizozaf.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/50e43961-8004-4537-9203-a3c0004a7dad/badojewe.pdfIn PDF document text
  • https://s3.amazonaws.com/muvarelo/handbook_of_inorganic_compounds.pdfIn PDF document text
  • https://s3.amazonaws.com/viromibukoleliw/public_speaking_file.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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