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://ggtraff.ru/strik?keyword=pfsense+captive+portal+template In PDF document text

  • https://s3.amazonaws.com/pazovugal/59706175493.pdfIn PDF document text
  • https://s3.amazonaws.com/leguvefu/sieve_analysis_test_lab_report.pdfIn PDF document text
  • https://s3.amazonaws.com/felasorarabipis/features_of_parliamentary_system.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368485/normal_5f8effcac021c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365580/normal_5f8700e0b1a12.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365586/normal_5f880854ec039.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370542/normal_5f8a9ef95ba21.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4376856/normal_5f89c1c48229b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379726/normal_5f8f5fd868e89.pdfIn PDF document text
  • https://moguvikob.weebly.com/uploads/1/3/0/8/130874292/7e446d41.pdfIn PDF document text
  • https://xexovelez.weebly.com/uploads/1/3/0/8/130813416/nutojugun.pdfIn PDF document text
  • https://vuxilimibipemop.weebly.com/uploads/1/3/1/4/131453056/fomogegomotimas.pdfIn PDF document text
  • https://dimaxafazeza.weebly.com/uploads/1/3/1/4/131453031/porukofosu.pdfIn PDF document text
  • https://fisotewefupug.weebly.com/uploads/1/3/1/0/131071176/8622273.pdfIn PDF document text
  • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/jogowezokuvaxu.pdfIn PDF document text
  • https://porelananov.weebly.com/uploads/1/3/0/7/130775759/mojes-retukonogeku-fujigomekosap-kurodarabinazo.pdfIn PDF document text
  • https://narogigadi.weebly.com/uploads/1/3/0/8/130874066/c2099e721b.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_01_sfnt_off00007781.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_01_sfnt_off00007781.bin)
  • http://www.daltonmaag.com/In extracted file (font_05_sfnt_off0000d536.bin)
  • https://cdn.shopify.com/s/files/1/0476/5502/6854/files/65175008605.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/7888/4759/files/mosetituxifizozuso.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0494/5802/0519/files/25389682488.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0498/9331/0631/files/7059380717.pdfIn PDF document text
  • https://www.reddit.com/r/PFSENSE/comments/4m5gdu/responsive_captive_poIn 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
  • https://savannah.gnu.org/projects/freefont/In extracted file (font_00_sfnt_off000067a0.bin)
  • http://www.gnu.org/licenses/In extracted file (font_00_sfnt_off000067a0.bin)
  • http://www.gnu.org/copyleft/gpl.htmlIn extracted file (font_00_sfnt_off000067a0.bin)
  • http://scripts.sil.org/OFLIn extracted file (font_01_sfnt_off00007781.bin)
  • http://dejavu.sourceforge.netIn extracted file (font_04_sfnt_off0000c047.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_04_sfnt_off0000c047.bin)

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