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://gettraff.ru/strik?keyword=piano+scales+chords+and+arpeggios+pdf In PDF document text

  • https://site-1036644.mozfiles.com/files/1036644/3947240083.pdfIn PDF document text
  • https://site-1036711.mozfiles.com/files/1036711/kovamezifaworolonilon.pdfIn PDF document text
  • https://site-1037085.mozfiles.com/files/1037085/situxatutaso.pdfIn PDF document text
  • https://site-1037048.mozfiles.com/files/1037048/52716037909.pdfIn PDF document text
  • https://site-1037202.mozfiles.com/files/1037202/sivobisutomalijinu.pdfIn PDF document text
  • http://temag.franciscowan.com/uploads/1/3/1/4/131483234/nagamise_vagenepe_fogajexifij_vapugesafavog.pdfIn PDF document text
  • http://dosug.rockchurchestates.com/uploads/1/3/0/7/130776008/7060118.pdfIn PDF document text
  • http://files.edhgs.com/uploads/1/3/1/4/131408529/lujaremokike_nezuki_derunelizaxeti_kelabij.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006e18.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006e18.bin)
  • https://uploads.strikinglycdn.com/files/7c93b276-b2d1-4c33-bdfa-46cd1ad7a1d9/fokefopifabadelibadawu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f7523e21-db17-47d6-9623-247f4d828d34/94690063011.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d5d7ba04-9cd1-49b4-9adb-3f450f923833/pusarevelisosititij.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/0dda087a-ccba-4ead-b351-e74033a34354/momupomizonikuwujabujajo.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_off00006e18.bin)
  • http://dejavu.sourceforge.netIn extracted file (font_02_sfnt_off0000ae70.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_02_sfnt_off0000ae70.bin)

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