Malicious PDF — malware analysis report

Heuristics 4

• 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://oalroax.com/wb3?utm_term=operaciones%20con%20numeros%20reales%20complejos%20y%20expresiones%20algebraicas%20pdf%20unam PDF link annotation

  • https://lum.windscrm.net/files/file/66131404347.pdfIn PDF document text
  • https://pakabinuwuda.weebly.com/uploads/1/4/1/6/141635773/8878.pdfIn PDF document text
  • http://djapm.com/userfiles/file/35330180087.pdfIn PDF document text
  • http://www.leasebridge.com/CKUPimg/files/pifivedalego.pdfIn PDF document text
  • https://agro-zavod.ru/app/webroot/js/ckfinder/userfiles/files/76888012721.pdfIn PDF document text
  • https://kokarino.weebly.com/uploads/1/3/5/2/135299240/jagababil.pdfIn PDF document text
  • https://denizlihorozu.com/resimler/files/23614106777.pdfIn PDF document text
  • https://saxewuluwedu.weebly.com/uploads/1/3/4/5/134528923/2680749.pdfIn PDF document text
  • http://studioadees.pl/file/vejelubonozusinewozutepil.pdfIn PDF document text
  • https://puzolezij.weebly.com/uploads/1/4/2/1/142180428/1574937.pdfIn PDF document text
  • http://reiki-roots.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/162b4fd6eb6c10---lufipusokoketa.pdfIn PDF document text
  • http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/162ad215b3401a---34358401346.pdfIn PDF document text
  • https://namovanuzo.weebly.com/uploads/1/3/1/6/131606642/9606013.pdfIn PDF document text
  • http://topenglish.sk/app/webroot/gallery/files/nusarotaxof.pdfIn PDF document text
  • https://zumaraje.weebly.com/uploads/1/3/0/7/130776401/4274742.pdfIn PDF document text
  • https://xitedobizinizej.weebly.com/uploads/1/4/2/0/142059497/4254994.pdfIn PDF document text
  • https://divekoworubu.weebly.com/uploads/1/3/4/0/134017674/xawokunugowedewe.pdfIn PDF document text
  • https://tupirirelaw.weebly.com/uploads/1/3/4/6/134620561/d3a56637033a29.pdfIn PDF document text
  • http://jtylek.pl/Upload/file/muwakavuperulupexekobode.pdfIn PDF document text
  • http://zgkimsteszew.pl/img/upload/files/takaroretoj.pdfIn PDF document text
  • https://laniguxademe.weebly.com/uploads/1/3/1/4/131452878/pezufupegaj.pdfIn PDF document text
  • https://tufuziboserivu.weebly.com/uploads/1/3/1/6/131636644/wusikitofimubu.pdfIn PDF document text
  • https://zigilokudiv.weebly.com/uploads/1/4/1/3/141318755/e8a463a128f95.pdfIn PDF document text
  • http://dailygiasi.com/uploads/userfiles/file/jupex.pdfIn PDF document text
  • https://taxagudirabik.weebly.com/uploads/1/3/4/0/134018797/7d227.pdfIn PDF document text
  • http://arcenevents.nl/site/upload/files/zakilokajetexeranoti.pdfIn PDF document text
  • http://www.bitstream.comIn extracted file (font_00_sfnt_off00008fff.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_off0000a9b2.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_01_sfnt_off0000a9b2.bin)

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