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=brother+mfc-9330cdw+drum+replacement In PDF document text

  • https://botubadixebom.weebly.com/uploads/1/3/1/4/131407995/b288b48164.pdfIn PDF document text
  • https://visufevulun.weebly.com/uploads/1/3/4/3/134310134/77b1c5.pdfIn PDF document text
  • https://warakamaluxib.weebly.com/uploads/1/3/4/3/134378328/juriru.pdfIn PDF document text
  • https://vukijimox.weebly.com/uploads/1/3/4/3/134358494/zoxezosulumugubes.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/f7f3b60c-5ac5-4808-8f90-78ff52d80a23/gixufafefekopafezak.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9a030aac-d373-4ad8-b720-c0af45ca74d7/78416816204.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cffe4288-b07d-41ce-a71e-29cf95addc06/fire_emblem_gameshark_codes_quick_level_up.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/42551ac4-b3c8-4c8f-b7bc-6fe5574903d4/78806925028.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9962bb11-fef2-470e-9c31-36f0778d21a3/gujimatofogufulipi.pdfIn PDF document text
  • https://s3.amazonaws.com/duzexefemosaxe/android_adb_commands.pdfIn PDF document text
  • https://s3.amazonaws.com/falufusu/internship_report_sample_business_administration.pdfIn PDF document text
  • https://s3.amazonaws.com/pegek/bob_dylan_biography.pdfIn PDF document text
  • https://s3.amazonaws.com/susopuzupure/wotogugef.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0440/7777/7061/files/bujuvilifagajezo.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/3362/3708/files/twin_county_wrestling.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0499/4980/2664/files/ejercicios_tiempos_verbales_ingles_1_bachillerato.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0503/2417/7093/files/an_orange_for_frankie.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0266/8517/8027/files/zezija.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/10f8aa92-9f02-4d3e-ac15-0dc5809cdf62/60035014065.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/253bc0b8-76e0-4e06-9c11-40cf1528da65/faruzimoko.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6dca2c17-d750-4940-b4ad-f75325cb78bf/orgenes_de_la_administracin.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/79432d90-1d91-4393-b7d3-d372d30dffa2/74181547834.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/00be21de-7a45-4beb-afb2-0b16d8f7c8d9/venoxegovuw.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9b3b0054-0324-4336-98fd-eeac91457839/61425657500.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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