Malicious PDF — malware analysis report

Heuristics 6

• PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
  PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
• 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.
• 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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• 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://ttraff.link/123?keyword=whatsapp+apk+download+latest+version+uptodown In PDF document text

  • https://cdn-cms.f-static.net/uploads/4389366/normal_5f91d46f90d53.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4388038/normal_5f95dcb79a2d0.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370985/normal_5f9034ccc0e5a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367017/normal_5f87d0aece912.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366382/normal_5f872b057cd20.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368228/normal_5f8c59b2d3e41.pdfIn PDF document text
  • https://daletutanedura.weebly.com/uploads/1/3/1/6/131636587/dajelitosagik.pdfIn PDF document text
  • https://zulatikuwa.weebly.com/uploads/1/3/0/7/130776211/e618fce96498c.pdfIn PDF document text
  • https://vuzevarezevarot.weebly.com/uploads/1/3/0/7/130740461/e71d5b95e089.pdfIn PDF document text
  • https://naxedomabaxa.weebly.com/uploads/1/3/1/6/131606472/ravatuvazolumolela.pdfIn PDF document text
  • https://powizosiki.weebly.com/uploads/1/3/4/0/134041047/9976843.pdfIn PDF document text
  • https://tinalolovini.weebly.com/uploads/1/3/4/3/134371967/2584288.pdfIn PDF document text
  • https://gajokemijibefe.weebly.com/uploads/1/3/4/4/134467094/fuzimezofikabif.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00007065.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00007065.bin)
  • https://uploads.strikinglycdn.com/files/b53c8d15-fe8f-4959-b16c-b11ce9d444fa/kibenebuta.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/33f4e564-417f-460a-aa61-83a9123d4452/3594802847.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/14ffa8a6-c6dc-4bd7-a63c-4bb48f39d3c8/mejibise.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5b47c137-8b6b-44c0-8e1b-99997892cf01/13961199804.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/221e9f5a-db10-4e2b-a980-a51fdaba7fdf/39433698501.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/dd823a0f-71d5-49d5-97a3-96172e622c85/.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/050fa8fa-ab0b-455a-8fba-d6aad944f366/3859927099.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5157a870-e0b0-4584-b7f7-914d4c736aef/les_accords_au_piano.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_off00007065.bin)

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