Malicious PDF — malware analysis report

Heuristics 6

• 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.
• 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
• 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://cctraff.ru/strik?keyword=indian+express+epaper+pdf+free+download In PDF document text

  • http://files.katrinashreve.com/uploads/1/3/1/6/131637419/najufubifibamenilat.pdfIn PDF document text
  • http://files.quayeventsgroup.com/uploads/1/3/2/7/132740978/zipovebapikotoxuvuki.pdfIn PDF document text
  • http://files.diannesjtherapy.com/uploads/1/3/1/8/131856770/2de7a0ec06.pdfIn PDF document text
  • http://files.masteringtheartofsomething.com/uploads/1/3/1/4/131407102/kaduwux_tabobakedo.pdfIn PDF document text
  • http://files.renewyoubodywork.com/uploads/1/3/1/3/131383949/4171540.pdfIn PDF document text
  • http://files.missingthings.org/uploads/1/3/0/7/130775276/e04c32299.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/f59bfa81-96f1-4da6-a457-0f50df7cf310/rezanokidixikametuxo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/efb4c7ec-b702-43b5-b03a-90800ee00825/12798072439.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/97f6a324-9204-4a7b-a23c-304237e65404/31719117304.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f1f2adc3-c3f7-40e4-bfc3-04817c1dcd11/taxolefaxarajiveguvib.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/9007/4018/files/phonetic_spelling_apps_for_android.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/8052/3678/files/rimag.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/5790/4792/files/citra_emulator_android_uptodown.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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