Malicious PDF — malware analysis report

Heuristics 5

• PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
  PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
• 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.
• 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://ggtraff.ru/pify?keyword=student+info+sheet In PDF document text

  • http://kizona.georgeojomo.com/uploads/1/3/0/8/130813827/48c52af74.pdfIn PDF document text
  • http://segaxirof.canberralifecoaching.com/uploads/1/3/0/9/130969723/koxejas-timafemitopamow-kepapije-seworibopol.pdfIn PDF document text
  • http://padomegi.sipanddrift.com/uploads/1/3/0/8/130813453/72aa3c385.pdfIn PDF document text
  • http://ramut.noyeslibraryfoundation.org/uploads/1/3/0/7/130739964/wiluluxatope_demiboludilolif.pdfIn PDF document text
  • http://wavisinij.a-pepe.com/uploads/1/3/0/8/130814311/gosodupatozabon_fuvokeramul_gegupikitedowo_fegobipu.pdfIn PDF document text
  • http://files.felipevis.com/uploads/1/3/1/3/131379280/sorumisak.pdfIn PDF document text
  • http://fiwab.northdevonmovingimage.org.uk/uploads/1/3/0/8/130874380/442725102dd1cff.pdfIn PDF document text
  • https://site-1036955.mozfiles.com/files/1036955/70310908956.pdfIn PDF document text
  • https://site-1036721.mozfiles.com/files/1036721/93670861675.pdfIn PDF document text
  • https://site-1039285.mozfiles.com/files/1039285/79498792253.pdfIn PDF document text
  • https://site-1037057.mozfiles.com/files/1037057/16562834381.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/a9fe0a95-442c-46b7-8874-0898b9fd9cba/85716204244.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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