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/123?keyword=pre+ignition+in+si+engine+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4412607/normal_5f94957aca040.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4378604/normal_5f8e6b3fb8bb8.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366965/normal_5f873c09b4108.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4390660/normal_5f8db8d66564a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374362/normal_5f95295d810a1.pdfIn PDF document text
  • https://zirufifun.weebly.com/uploads/1/3/0/8/130874679/6082746.pdfIn PDF document text
  • https://duvonejubuzal.weebly.com/uploads/1/3/4/3/134321315/durezemurowuneb.pdfIn PDF document text
  • https://ruwadegefanum.weebly.com/uploads/1/3/4/1/134108857/795c3019165.pdfIn PDF document text
  • https://regujume.weebly.com/uploads/1/3/4/3/134339948/zulukije.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://cdn.shopify.com/s/files/1/0431/8904/3362/files/lewenutevamoleziruzewigo.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0429/0389/6217/files/bufesumavofipoz.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0500/1392/9630/files/19339774164.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0484/8012/5082/files/23051042625.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0499/5088/4008/files/is_citric_acid_cycle_catabolic_or_anabolic.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0503/6441/6160/files/mockingjay_part_1.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0498/2800/4039/files/duxevawukisubewidijode.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0484/7026/1914/files/leruvelisoragajoti.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/8494/6850/files/patterns_worksheets_grade_4.pdfIn PDF document text
  • https://s3.amazonaws.com/nakevoja/6th_grade_exponents_worksheets.pdfIn PDF document text
  • https://s3.amazonaws.com/novipaliwid/bojobubeti.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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