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.
• Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
  PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
• 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://ttraff.me/aws?keyword=abecedario+griego+espa%25C3%25B1ol+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4370303/normal_5f8ecf8c1b4b7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366989/normal_5f8aac07a036c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374708/normal_5f91796ec66ef.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374364/normal_5f8fe0507c0ac.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4383446/normal_5f8ec16971f43.pdfIn PDF document text
  • https://risimukino.weebly.com/uploads/1/3/1/3/131383953/6dfe527e154aa4.pdfIn PDF document text
  • https://jinunezig.weebly.com/uploads/1/3/4/3/134308797/aeee59f76c.pdfIn PDF document text
  • https://milavigik.weebly.com/uploads/1/3/2/8/132815866/rujajelipepubepupuvu.pdfIn PDF document text
  • https://walijogopabo.weebly.com/uploads/1/3/0/7/130776167/06cb80c508c2ea.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_01_sfnt_off00008bf7.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_01_sfnt_off00008bf7.bin)
  • https://uploads.strikinglycdn.com/files/24f6ae68-7c2e-4ac0-96c3-6a802cb35ec8/82317133646.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2bb6e7bf-36c9-4a04-acef-cbdf0aac0746/nilowugofe.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e0a55b69-2d16-4283-9562-3616c6106039/84014135361.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/39907e28-bd76-4a88-a144-0e8956c910dc/nufefulirikufakero.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/8307/0629/files/jurnal_strongyloides_stercoralis.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/2940/5079/files/assassins_creed_black_flag_combat_guide.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0429/8221/1735/files/raise_a_wolf_dog.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/9944/5664/files/dixorigexudinewiratofa.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0499/9233/5511/files/wifi_denied_access_to_network_android.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/9446/4929/files/caney_fork_river_fishing_guides.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/6564/6999/files/joxuk.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0495/7755/8168/files/28741121099.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0502/5654/3944/files/cem_duvidas_sobre_o_autismo.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/9274/7460/files/content_marketing_for_dummies_download.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0436/1938/5502/files/wafadiwag.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0436/5506/9849/files/waritebakibo.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/9136/9377/files/tavenilometelupivajub.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
  • https://savannah.gnu.org/projects/freefont/In extracted file (font_00_sfnt_off00007b22.bin)
  • http://www.gnu.org/licenses/In extracted file (font_00_sfnt_off00007b22.bin)
  • http://www.gnu.org/copyleft/gpl.htmlIn extracted file (font_00_sfnt_off00007b22.bin)
  • http://scripts.sil.org/OFLIn extracted file (font_01_sfnt_off00008bf7.bin)

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