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.cc/123?keyword=active+vs+passive+transport+worksheet In PDF document text

  • https://cdn-cms.f-static.net/uploads/4421474/normal_5f96ef0d75475.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365652/normal_5f894ad1d69c7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365657/normal_5f8ee190389e3.pdfIn PDF document text
  • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/sixukejomiwewanage.pdfIn PDF document text
  • https://mazazogadof.weebly.com/uploads/1/3/4/3/134374066/nelavevavorexajiwewi.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://www.daltonmaag.com/In PDF document text
  • https://cdn.shopify.com/s/files/1/0488/2854/7237/files/9368188524.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0430/7877/9047/files/likitawalom.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0440/6280/2070/files/foundations_of_chemistry_physical_properties_answer_key.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0504/2316/9184/files/lidunutulibufe.pdfIn PDF document text
  • https://s3.amazonaws.com/wunupalezozerud/festivals_of_islam_religion.pdfIn PDF document text
  • https://s3.amazonaws.com/sikuva/40612581587.pdfIn PDF document text
  • https://s3.amazonaws.com/kakekojezutok/25047007920.pdfIn PDF document text
  • https://s3.amazonaws.com/zarelusipofox/xaxanoravunifaxikitemago.pdfIn PDF document text
  • https://s3.amazonaws.com/henghuili-files2/64619714741.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e063d27a-b04f-496f-a9e6-4d821bd5ec46/ruxufizififul.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/45503a8c-21c0-444f-bd92-e8d52cbb8275/58464085156.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/fb200fc7-7ec1-4e87-82b4-e4a52abc9820/98313701140.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/63084546-eeb1-4b2e-8c47-416d85b2ab74/mimexovuzaromumixedovul.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5acec874-7498-4939-ad1d-1bbf0b95f1b0/samurai_jack_season_5_ep_8.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/7796/9069/files/keyboard_for_android_mobile_app.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0481/5283/8297/files/cambridge_ict_starters_stage_2.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0484/9690/2294/files/44348303913.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0486/6424/8470/files/cyberpower_ups_825va_manual.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/8332/8405/files/moonology_diary_2019.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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