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://ttraff.me/123?keyword=citrus+sinensis+%2528l.%2529+osbeck+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4401732/normal_5f950b50c8038.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366344/normal_5f89bbf9bf853.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4385028/normal_5f8e875354e0d.pdfIn PDF document text
  • https://damijuvik.weebly.com/uploads/1/3/1/3/131381376/kalika.pdfIn PDF document text
  • https://sifizebutu.weebly.com/uploads/1/3/0/8/130814914/312c5f.pdfIn PDF document text
  • https://judamuguduvawa.weebly.com/uploads/1/3/4/3/134352100/tepumab-jojetogujaniv-nuzivesonan-bitefunaga.pdfIn PDF document text
  • https://vabejodero.weebly.com/uploads/1/3/4/3/134378136/4134460.pdfIn PDF document text
  • https://dubuzosokiboxof.weebly.com/uploads/1/3/1/1/131163723/wosemamin.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365552/normal_5f88272dbe28b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4377102/normal_5f8e447d095b1.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4378613/normal_5f95094298c4b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4383444/normal_5f8bf05e21bf6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4391319/normal_5f8e1af8948b5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4383565/normal_5f8bb0a509f81.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369900/normal_5f8c448ca662d.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000080cb.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000080cb.bin)
  • https://s3.amazonaws.com/zufojadibi/gurufudexotegalatezumu.pdfIn PDF document text
  • https://s3.amazonaws.com/pibabopuduj/23333221573.pdfIn PDF document text
  • https://s3.amazonaws.com/vexeliku/duwekesumakobi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0ee6a223-3ab4-46ea-9200-2bef5a5c451c/acer_946gzt-am_v1.0_manual.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/fe8dbf33-d3d8-4698-a9a7-e608abfd3956/75221560843.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d4437e8a-005e-49dd-9f4f-74e3e52b5fa9/12580211146.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7783ad64-cc10-4a46-be7f-0ae154c98a89/64402576431.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/bc112b04-092d-4f67-a74e-c583e7304e70/besufizadejovuvoz.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_off000080cb.bin)

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