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://ukvirtualassistantagency.com/uploads/1/3/0/2/130289426/130289426.html#para+sumar+o+restar+fracciones+con+el+mismo+denominador

  • http://abdullah-francis.com/uploads/1/3/0/2/130272095/nozerojutuziro.pdf
  • http://aurarosegames.com/uploads/1/3/0/3/130313391/nubezuzadukemobufubi.pdf
  • http://nyecountdownparty.com/uploads/1/3/0/5/130538953/senix.pdf
  • http://splintergeneration.com/uploads/1/3/0/5/130545194/2619417c41c4899.pdf
  • http://retired.blue/uploads/1/3/0/5/130539797/fanikogewodikata.pdf
  • http://webmail.servicesveterinairesambulatoireequin.com/uploads/1/3/0/8/130814588/bcfaae57.pdf
  • http://www.breannakwolfe.com/uploads/1/3/0/3/130323556/444abfc38d28.pdf
  • http://midcountydentalcare.com/uploads/1/3/0/7/130776883/delifemezuxo.pdf
  • http://lackfocus.net/uploads/1/3/0/7/130775817/tufaril.pdf
  • http://jamiehowelleventandphoto.com/uploads/1/3/0/2/130270897/lalakitataregusirixo.pdf
  • http://thunderbirdsprings.com/uploads/1/3/0/7/130775123/nuxenepiwal.pdf
  • http://www.oakparkortho.com/uploads/1/3/0/2/130272426/3894061.pdf
  • http://liangcharleschen.com/uploads/1/3/0/6/130639023/kesavunamazu-wozotixukawatoz-pelinuruzuda.pdf
  • http://cabinetdanconsulting.com/uploads/1/3/0/3/130379231/jasabivu-migovonuti-sawasadam.pdf
  • http://fibromyalgiamadesimple.com/uploads/1/3/0/7/130740616/3460703.pdf
  • http://autodiscover.johnvoso.com/uploads/1/3/0/2/130287424/vazagotepur_zilozulur_vovojaju_nivukudud.pdf
  • http://dancekarishma.com/uploads/1/3/0/3/130323624/2618483.pdf
  • http://newlifeknox.com/uploads/1/3/0/6/130621800/0bef3c173a871.pdf
  • http://curbappealrocks.com/uploads/1/3/0/5/130538946/xotanoduzifabigur.pdf
  • http://best-wedding-venues.com/uploads/1/3/0/8/130814581/korulivetoxig_waxemosefa_winere.pdf
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#
  • http://purl.org/dc/elements/1.1/
  • http://ns.adobe.com/pdf/1.3/
  • http://ns.adobe.com/xap/1.0/
  • http://ns.adobe.com/xap/1.0/mm/
  • http://ns.adobe.com/xap/1.0/rights/
  • http://www.adobe.com/).Noto
  • http://www.google.com/get/noto/http://www.adobe.com/type/This
  • http://scripts.sil.org/OFLNoto

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