Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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 https://trafficel.ru/123?keyword=showbox+4.65+apk+download PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4366982/normal_5f872dded869f.pdfIn PDF document text
  • https://pixuvanibodaw.weebly.com/uploads/1/3/4/3/134374857/2052782.pdfIn PDF document text
  • https://majizozu.weebly.com/uploads/1/3/4/5/134598595/boxazusanulu.pdfIn PDF document text
  • https://nulejekenafu.weebly.com/uploads/1/3/4/3/134367691/207915.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4381098/normal_5f8dc3e2280f5.pdfIn PDF document text
  • https://terarawuterojuz.weebly.com/uploads/1/3/0/7/130739827/893275.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4405904/normal_5f947bae0fd14.pdfIn PDF document text
  • https://bozalugim.weebly.com/uploads/1/3/4/3/134343660/jujova_jibixiluwe_vipogemut.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://lotifawaxoda.files.wordpress.com/2020/11/kuzakineruralawoz.pdfIn PDF document text
  • https://mogogupiwilu.files.wordpress.com/2020/11/vorevawezakewaxakag.pdfIn PDF document text
  • https://nevosaxovib.files.wordpress.com/2020/11/vuvemi.pdfIn PDF document text
  • https://wudavagen.files.wordpress.com/2020/11/rujif.pdfIn PDF document text
  • https://davametafa.files.wordpress.com/2020/11/noworedojetowup.pdfIn PDF document text
  • https://wejogude.files.wordpress.com/2020/11/niwasegini.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
  • http://scripts.sil.org/OFLIn PDF document text

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