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://autodiscover.coprimag.com/uploads/1/3/0/8/130874261/130874261.html#enterobacter+cloacae+complex+motility PDF link annotation

  • http://www.paediatricmdspatientgroup.co.uk/uploads/1/3/0/3/130379117/121bf125fdbddc.pdfIn PDF document text
  • http://www.gillydonovan.com/uploads/1/3/0/2/130291453/jezezop.pdfIn macro / runtime command snippet
  • http://www.ceciliaserafini.it/uploads/1/3/0/7/130775084/5420147.pdfIn macro / runtime command snippet
  • http://lightcodesmusic.com/uploads/1/3/0/6/130620520/62496.pdfIn PDF document text
  • http://timetotalkart.com/uploads/1/3/0/3/130379445/9108786.pdfIn PDF document text
  • http://square-centre.com/uploads/1/3/0/6/130605001/1d597045.pdfIn PDF document text
  • http://deskhelper.net/uploads/1/3/0/7/130775249/d0ec96a1.pdfIn PDF document text
  • http://www.handtoons.com/uploads/1/3/0/3/130379379/puwijofituvavibux.pdfIn PDF document text
  • http://theleadershipring.com/uploads/1/3/1/0/131070576/4556339.pdfIn PDF document text
  • http://ukiahrvpark.com/uploads/1/3/0/6/130622075/f40b4e99a31dc8.pdfIn PDF document text
  • http://home-sweety-home.com/uploads/1/3/0/7/130775629/rademepukewabi.pdfIn PDF document text
  • http://xxxchampion.com/uploads/1/3/0/4/130489143/rukuwebaru.pdfIn PDF document text
  • http://www.hitandmisshomesteader.com/uploads/1/3/0/7/130740192/ferepuzibikasuz.pdfIn PDF document text
  • http://mspistone.com/uploads/1/3/0/7/130740072/8ddfabbe38.pdfIn PDF document text
  • http://mybabyfreebies.com/uploads/1/3/0/4/130489898/0695993ac7.pdfIn PDF document text
  • http://commonsenseconnections.org/uploads/1/3/0/7/130775778/xogikize.pdfIn PDF document text
  • http://yanayogis.com/uploads/1/3/0/4/130476309/wagepagozogojiki.pdfIn PDF document text
  • http://saraleestudiogallery.com/uploads/1/3/0/5/130543665/53f719.pdfIn PDF document text
  • http://barnardsinkibler.com/uploads/1/3/0/6/130620560/takaboravif.pdfIn PDF document text
  • http://gmqkazp.sites.looka.com/uploads/1/3/0/6/130639678/sunimeja-nemenope-wexozi-xuxojusesabuki.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

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