Malicious PDF / .VIR — malware analysis report

Heuristics 5

• 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.
• External URI info PDF_URI
  PDF contains an external URL action
• 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 http://sbairs.com/datas/files/dorewovaxodolumizo.pdf In PDF document text

  • https://weeb.nu/userfiles/file/56299489445.pdfIn PDF document text
  • https://myleague.vn/uploadfiles/kcfinder/files/jetafivodumunaxozubasuje.pdfIn PDF document text
  • http://immobilier-valence-agen.com/userfiles/file/33486646692.pdfIn PDF document text
  • http://almawred-sy.com/files/adminfiles/files/xowupiraxefenibukisaji.pdfIn PDF document text
  • http://toanthinh.vn/webroot/img/files/minorubogata.pdfIn PDF document text
  • http://tajesink.com/Uploadfiles/files/zuwubupen.pdfIn PDF document text
  • https://pitaxevidadud.weebly.com/uploads/1/3/2/8/132815172/zoxisekegazasatowet.pdfIn PDF document text
  • http://ibconsulting.it/userfiles/files/nimokogozigemejumigo.pdfIn PDF document text
  • http://tipsclubcr.com/campannas/file/filejiwixigupidemilopinuw.pdfIn PDF document text
  • https://vubisurajoguv.weebly.com/uploads/1/3/4/2/134265568/9770242.pdfIn PDF document text
  • http://textosolutionslinguistiques.com/upload/editor/file/81585651907.pdfIn PDF document text
  • https://desujerobum.weebly.com/uploads/1/3/1/0/131070458/6364622.pdfIn PDF document text
  • https://xewemodezukaw.weebly.com/uploads/1/3/5/3/135345341/jovigumege.pdfIn PDF document text
  • https://jugevenow.weebly.com/uploads/1/3/4/7/134736768/28947.pdfIn PDF document text
  • https://solusolifodijal.weebly.com/uploads/1/3/4/4/134433047/01c754c6e251d.pdfIn PDF document text
  • https://ditiwudo.weebly.com/uploads/1/3/1/4/131452947/deliligagoj.pdfIn PDF document text
  • http://oalroax.com/wb3?utm_term=giving%20direction%20in%20english%20pdfPDF link annotation
  • http://www.bitstream.comIn extracted file (font_00_sfnt_off0000914b.bin)
  • 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://dejavu.sourceforge.netIn extracted file (font_01_sfnt_off0000a90f.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_01_sfnt_off0000a90f.bin)

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