Malicious PDF — 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.
• LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
  Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
• 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://michaelwellsart.com/uploads/1/3/0/5/130588617/130588617.html#she+dodie+clark+piano+sheet+music PDF link annotation

  • http://gpacostruzioni.com/uploads/1/3/0/2/130288559/vopux.pdfIn PDF document text
  • http://jews4trump.net/uploads/1/3/0/8/130814189/24caea7d.pdfIn macro / runtime command snippet
  • http://proutymotorsports.com/uploads/1/3/0/3/130323115/gekotine_xonos.pdfIn macro / runtime command snippet
  • http://raepiper.net/uploads/1/3/0/7/130739153/jinirazip_powozofomo.pdfIn PDF document text
  • http://perceptionsoflouie.com/uploads/1/3/0/8/130874535/c23a15a401a.pdfIn PDF document text
  • http://verdinpropertyphotos.com/uploads/1/3/1/4/131407494/7724531.pdfIn PDF document text
  • http://instrumentalhands.com/uploads/1/3/0/6/130604613/ee4cc4355.pdfIn PDF document text
  • http://septemberhouse.net/uploads/1/3/0/6/130604299/9464463.pdfIn PDF document text
  • http://fayotopia.com/uploads/1/3/0/6/130620469/4e48a85700a.pdfIn PDF document text
  • http://memorialbuildingandtheatre.org/uploads/1/3/1/0/131071315/ed1ac5152c6.pdfIn PDF document text
  • http://hotelbuyouts.com/uploads/1/3/1/0/131070829/tadaraleruma-tiwanube.pdfIn PDF document text
  • http://quizsource.com/uploads/1/3/1/6/131606476/b717c50a.pdfIn PDF document text
  • http://guerrieritruckingllc.com/uploads/1/3/0/2/130270953/jusonik.pdfIn PDF document text
  • http://donnajfraley.com/uploads/1/3/0/4/130477663/b1821.pdfIn PDF document text
  • http://gpacostruzioni.com/uploads/1/3/0/2/130288559/In macro / runtime command snippet
  • 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 PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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