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.
• 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.
• 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://helpinghanddoc.com/uploads/1/3/1/0/131070579/131070579.html#capacidades+motrices+basicas+en+educacion+fisica PDF link annotation

  • http://cr-routines.com/uploads/1/3/0/6/130605521/42291a509.pdfIn PDF document text
  • http://zpdevsite.com/uploads/1/3/0/7/130775497/ligetorejefim_notawido.pdfIn PDF document text
  • http://justletyouknow.com/uploads/1/3/0/5/130588461/nefavalozifimip_woravo.pdfIn PDF document text
  • http://www.katiecrawfordphotography.com/uploads/1/3/0/4/130479435/8694653.pdfIn PDF document text
  • http://hawktransportation.net/uploads/1/3/0/7/130739029/03a9e87c174d0f6.pdfIn PDF document text
  • http://lyndlaw.com/uploads/1/3/0/5/130590366/sumupadatekifa.pdfIn PDF document text
  • http://minimalistworkshop.com/uploads/1/3/0/6/130621928/lebafanevezese-vogebati.pdfIn PDF document text
  • http://www.sawyerhteaching.com/uploads/1/3/0/8/130813972/c8b8cca493f.pdfIn PDF document text
  • http://valentinaelenadesign.com/uploads/1/3/0/9/130969146/wetopomamug.pdfIn PDF document text
  • http://londonpretty.com/uploads/1/3/0/5/130589268/fiwojewowonatomat.pdfIn PDF document text
  • http://primabooks.bookpod.com.au/uploads/1/3/0/7/130775598/4500e64b.pdfIn PDF document text
  • http://www.collegeparkcleaner.com/uploads/1/3/0/3/130312912/d53dd3b82bd0c6b.pdfIn PDF document text
  • http://makenzie01.net/uploads/1/3/0/4/130476024/patuzuxod.pdfIn PDF document text
  • http://www.lmorrisbeauty.com/uploads/1/3/0/7/130739947/bepotukeziranigo.pdfIn PDF document text
  • http://stephaniesabin.com/uploads/1/3/0/5/130544390/wofunozitapowo.pdfIn PDF document text
  • http://robinson-david.com/uploads/1/3/0/2/130274145/12de3b121baf19f.pdfIn PDF document text
  • http://jllcapitalmarketslakepointecenter.com/uploads/1/3/0/7/130775707/nuvevejusopalikabuwa.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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