Malicious PDF — malware analysis report

Heuristics 5

• 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.
• 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://cctraff.ru/123?keyword=flashcard+ti%25E1%25BA%25BFng+anh+theo+ch%25E1%25BB%25A7+%25C4%2591%25E1%25BB%2581+pdf In PDF document text

  • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/jatelu-zukolugaw.pdfIn PDF document text
  • https://bevokelas.weebly.com/uploads/1/3/4/3/134310014/ba4788be6bec.pdfIn PDF document text
  • https://tidemipevu.weebly.com/uploads/1/3/0/7/130740592/povakokuxefos.pdfIn PDF document text
  • https://jiwonilasipa.weebly.com/uploads/1/3/4/3/134313366/2686844.pdfIn PDF document text
  • https://koxoganonigowup.weebly.com/uploads/1/3/1/4/131408343/cc2e76595734.pdfIn PDF document text
  • https://papunagaku.weebly.com/uploads/1/3/1/3/131384156/lutigojogiwu.pdfIn PDF document text
  • https://wotufoxak.weebly.com/uploads/1/3/4/3/134308946/bivuwewijewitisi.pdfIn PDF document text
  • https://tezosarotijup.weebly.com/uploads/1/3/4/3/134305137/sedovumik.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000062cc.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000062cc.bin)
  • https://cdn.shopify.com/s/files/1/0428/9737/5388/files/setojubazilukizativuzig.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0478/4272/1951/files/txconnect_eagle_pass_isd_net.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/9758/2494/files/20031817153.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0499/7909/7248/files/learn_to_fly_3_4000k_guide.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0268/8335/8914/files/gupiwagom.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1c4c73e5-5b3b-4d7c-ac77-e6d09aa04b21/gosolipenunimup.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/373876ee-5a9e-45b8-a108-869c19ce17dd/52972516391.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4bdd30a6-18dc-41c5-b1bd-a992443af10c/laninuxuzoredugenopep.pdfIn PDF document text
  • https://s3.amazonaws.com/jamokaroxoj/easter_vigil_alleluia.pdfIn PDF document text
  • https://s3.amazonaws.com/busutafitufe/el_breviario_de_los_politicos.pdfIn PDF document text
  • https://s3.amazonaws.com/mijedusovineti/biochemistry_free_books.pdfIn PDF document text
  • https://s3.amazonaws.com/mamukawaxatali/kezuxisewavafedamifi.pdfIn PDF document text
  • https://s3.amazonaws.com/kavitokolezub/882957107.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_off000062cc.bin)

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