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/aws?keyword=facebook+ads+tutorial+pdf In PDF document text

  • https://cdn-cms.f-static.net/uploads/4365591/normal_5f8940435d2ae.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4377112/normal_5f92d68c2488a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379615/normal_5f8fc2af2e064.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/1/0496/2657/9100/files/jubosebapurokazofilopelub.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0429/8699/5863/files/temosexisobuluzevupefar.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0485/9900/7390/files/gcam_apk_xiaomi_mi_mix_2.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d8901d3c-59f6-468b-b9d5-85703d0b266b/lewiw.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/843251d1-6f59-4d15-845f-1fbc5ba532ea/adezyon_kohezyon_yzey_gerilimi_klcallk.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/8494/6850/files/33212339176.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0484/4355/5998/files/radilaferuju.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0479/6042/4615/files/xcom_enemy_unknown_android_install.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0498/7686/1086/files/to_whomsoever_it_may_concern_letter_template.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0484/9519/8363/files/holding_hands_drawing_cartoon.pdfIn PDF document text
  • https://s3.amazonaws.com/jamokaroxoj/english_words_with_kannada_meaning.pdfIn PDF document text
  • https://s3.amazonaws.com/tadovu/bmp_file_convert_to_online.pdfIn PDF document text
  • https://s3.amazonaws.com/fajeloninesitel/ahmedabad_auto_rickshaw_fare_chart_2018.pdfIn PDF document text
  • https://s3.amazonaws.com/xukonakefules/67524169697.pdfIn PDF document text
  • https://s3.amazonaws.com/zetare/the_odyssey_book_9.pdfIn PDF document text
  • https://s3.amazonaws.com/zetare/kitowipogejawabarav.pdfIn PDF document text
  • https://s3.amazonaws.com/wilugugo/dokofejijevuxemijolajeb.pdfIn PDF document text
  • https://s3.amazonaws.com/leguvefu/cbse_class_10_sanskrit_syllabus_2019-_20.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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