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.
• Urgency / deadline lure low SE_URGENCY_LURE
  Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
• 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/wix?keyword=dot+inspection+form In PDF document text

  • http://files.thelaurawilson.net/uploads/1/3/0/8/130873918/7419086.pdfIn PDF document text
  • http://girowuga.caprinexnz.com/uploads/1/3/1/3/131379803/nazanupupetigak-diwepuguva.pdfIn PDF document text
  • http://jafido.raphaelschwartzman.com/uploads/1/3/0/9/130969339/cdc8dd46.pdfIn PDF document text
  • http://nafolovon.peanutandpiglet.co.uk/uploads/1/3/0/8/130813547/3828574.pdfIn PDF document text
  • http://liwojeke.mayflowerofbillings.com/uploads/1/3/0/9/130969060/7686506.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://588c4f28-f06e-4085-882e-939ca294e987.filesusr.com/ugd/c722c2_396cdfae73114d20885f57f9881c3eb0.pdf?index=trueIn PDF document text
  • https://058d057d-c698-4bdf-b82f-849f3378c91c.filesusr.com/ugd/740d8c_2848210dadba4487a16b468e1bd64239.pdf?index=trueIn PDF document text
  • https://fd995576-5013-4f83-9442-9b752a0a3498.filesusr.com/ugd/0582e0_704bcf1984434ddab7ee0b17d0f40bc9.pdf?index=trueIn PDF document text
  • https://8cff560a-8894-4161-bce6-e1f06dc1252f.filesusr.com/ugd/a91264_c27054cb03974c46883ba1a0633f9743.pdf?index=trueIn PDF document text
  • https://47a49c36-7e1e-44dd-af74-a6ad1fad3125.filesusr.com/ugd/696117_0063329a1ac34806870f2d85021c96f6.pdf?index=trueIn PDF document text
  • https://1fd79222-1afc-4985-aeb7-c703cd81872d.filesusr.com/ugd/067ecb_f853d509c84d4ff69311ff8126a80201.pdf?index=trueIn PDF document text
  • https://943f350b-d1e4-4e20-9f68-08771b6594b0.filesusr.com/ugd/70e7d4_d9bf5e2f3463454198d255dd2e8390d1.pdf?index=trueIn PDF document text
  • https://a1c5989d-9efe-41a2-868f-f2e620ec91d5.filesusr.com/ugd/dfb5f8_092aae4d25d0493aa963416f94c0d6ca.pdf?index=trueIn PDF document text
  • https://038e546d-a75e-47dd-b256-a672a82528a9.filesusr.com/ugd/9e14ca_89a35521d00d48458206c62246214d1e.pdf?index=trueIn 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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