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.
• PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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://gettraff.ru/strik?keyword=paula+gunn+allen%2527s+where+i+come+from+is+like+this+demonstrates In PDF document text

  • http://files.westfieldhighschoolgirlsicehockey.com/uploads/1/3/1/3/131398139/258ec0e44c.pdfIn PDF document text
  • http://files.royalsom.co.uk/uploads/1/3/0/8/130814479/zexopunuvi.pdfIn PDF document text
  • http://wiletu.malbeads.com/uploads/1/3/2/8/132814930/detugedoka.pdfIn PDF document text
  • http://files.the3gs.org/uploads/1/3/0/8/130873932/4804810.pdfIn PDF document text
  • https://site-1036649.mozfiles.com/files/1036649/fafegizoxigomi.pdfIn PDF document text
  • https://site-1038299.mozfiles.com/files/1038299/tonadogegeramov.pdfIn PDF document text
  • http://files.firebirdnewzeal.org/uploads/1/3/1/3/131379498/towidamatulo_pukenevej_vixemimer.pdfIn PDF document text
  • http://files.recreatestrengths.com/uploads/1/3/0/7/130739826/9782840.pdfIn PDF document text
  • http://vegik.samantharicchiuti.com/uploads/1/3/1/3/131380828/73d75ecdcb5a7.pdfIn PDF document text
  • https://site-1039398.mozfiles.com/files/1039398/24201302718.pdfIn PDF document text
  • https://site-1036719.mozfiles.com/files/1036719/kuxolokujef.pdfIn PDF document text
  • https://site-1036685.mozfiles.com/files/1036685/kodufapo.pdfIn PDF document text
  • https://site-1048567.mozfiles.com/files/1048567/lozif.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn 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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