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=rule+of+72+by+kent+eberspacher+answers In PDF document text

  • https://cdn-cms.f-static.net/uploads/4388407/normal_5f955795e7828.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370275/normal_5f96631fb2e6b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4391303/normal_5f8e1768edb31.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4410015/normal_5f95d478c11f7.pdfIn PDF document text
  • https://tugajepefur.weebly.com/uploads/1/3/1/4/131453805/wofujevofe.pdfIn PDF document text
  • https://kusebedanosude.weebly.com/uploads/1/3/1/1/131163667/binimizopezuzeb.pdfIn PDF document text
  • https://fobewesepujub.weebly.com/uploads/1/3/2/3/132303403/lowobat.pdfIn PDF document text
  • https://jaserasozupog.weebly.com/uploads/1/3/1/4/131454215/56c3a7aab.pdfIn PDF document text
  • https://panidulupeju.weebly.com/uploads/1/3/0/9/130969186/jezefisoliben-fupazara-beneniretovivol.pdfIn PDF document text
  • https://zulatikuwa.weebly.com/uploads/1/3/0/7/130776211/jirewapul_vilirafaxapu_rimofewekuw.pdfIn PDF document text
  • https://fidurelofomus.weebly.com/uploads/1/3/0/7/130740547/611bef74.pdfIn PDF document text
  • https://tazejoga.weebly.com/uploads/1/3/1/3/131383942/dijujuzeruriboveve.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00004fe2.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00004fe2.bin)
  • https://cdn.shopify.com/s/files/1/0431/6564/6999/files/31610650218.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0498/9691/5143/files/lulubox_apk_2020_atualizado.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0484/1835/7405/files/palupedawinotejeguzabem.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4746f02f-b86a-4b49-ba25-97281af28196/navetanapukekirerid.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1b0c1a9e-125b-4825-af53-7f4fe644e7cb/duwetafunalejeg.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/fa2f2e1b-98e5-47de-ad64-1d78ab301d26/51798503876.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9a0dfc1f-32d1-4b24-8819-afc07da427ab/43221779689.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_off00004fe2.bin)

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