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://cctraff.ru/strik?keyword=ejercicios+practicos+microsoft+word In PDF document text

  • https://lilawowawumoxo.weebly.com/uploads/1/3/1/4/131453384/0f82c363ecfea.pdfIn PDF document text
  • https://finudumibinad.weebly.com/uploads/1/3/4/3/134344164/zinup.pdfIn PDF document text
  • https://xigokerurubupa.weebly.com/uploads/1/3/4/3/134312623/zabasadomafi.pdfIn PDF document text
  • https://natizupasa.weebly.com/uploads/1/3/1/4/131437725/loduderatujum-dinizeguvo-fuwekomisiraz.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365549/normal_5f8f46e67717e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375528/normal_5f8b34b57c006.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4380082/normal_5f928ade4c9d8.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000637b.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000637b.bin)
  • https://cdn.shopify.com/s/files/1/0483/5262/4803/files/maschine_mk3_manual_espaol.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0480/8808/8728/files/43718966398.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0476/7806/2758/files/mendelssohn_song_without_words_op_30_no_3.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0495/9014/1094/files/shiv_kumar_batalvi_luna_in_punjabi.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/8324/4714/files/levakeleji.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0492/0351/1445/files/wii_operations_manual_for_help_troubleshooting.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/4301/2256/files/91177013100.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/5471/8358/files/solar_pv_system_calculation.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/6409/8453/files/stevens_model_15_a_manual.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/2721/0144/files/escritorio_remoto_android_a_linux.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/6216/4644/files/need_for_speed_no_limits_hacked_apk_and_obb.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0495/7208/5926/files/driving_simulator_2020_mod_apk_unlimited_money.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0479/6553/6412/files/equivalent_expressions_worksheet_algebra.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 extracted file (font_00_sfnt_off0000637b.bin)

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