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=baha%2527i+feast+dates+2019 In PDF document text

  • https://nezumise.weebly.com/uploads/1/3/4/2/134265586/e7ccb.pdfIn PDF document text
  • https://ximazula.weebly.com/uploads/1/3/0/7/130738777/fupewenawamido_zukexidemekuja_sonekixebeni_sekorej.pdfIn PDF document text
  • https://vupimolafi.weebly.com/uploads/1/3/1/3/131398504/4367980.pdfIn PDF document text
  • https://rosuxemu.weebly.com/uploads/1/3/0/7/130776582/6240009.pdfIn PDF document text
  • https://jovikuveditowe.weebly.com/uploads/1/3/0/8/130874612/6304031.pdfIn PDF document text
  • https://kizekusoviwo.weebly.com/uploads/1/3/1/4/131453028/sevogotili.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_01_sfnt_off00007c35.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_01_sfnt_off00007c35.bin)
  • http://www.opentle.orgIn extracted file (font_02_sfnt_off00008d3d.bin)
  • http://www.daltonmaag.com/In extracted file (font_05_sfnt_off0000dfde.bin)
  • https://s3.amazonaws.com/davubewu/nimuzukedegigabatut.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0440/7777/7061/files/71626296759.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0505/5348/7543/files/android_phone_external_speaker_not_working.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3a083c39-2e9c-4098-88bb-564221f546a1/77682226882.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a27b0b5b-ed7d-4386-8a0b-d8bd2971686c/buvidazurudi.pdfIn PDF document text
  • https://s3.amazonaws.com/wonoti/geographical_map_of_usa.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0434/3290/2823/files/terutoza.pdfIn PDF document text
  • https://s3.amazonaws.com/lumixi/botavifozodikej.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e10b59d9-ed10-4705-b29d-1f0ef5a9f61c/simusugenivegovinonulu.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/8204/5858/files/22189789864.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0432/9082/0774/files/wifidileweji.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8f33ee8f-b001-448b-827f-8eb78d9cb994/nilawizugudibumubaze.pdfIn PDF document text
  • https://s3.amazonaws.com/jenagubadopi/the_12-_lead_ecg_in_acute_coronary_syndromes.pdfIn PDF document text
  • https://s3.amazonaws.com/henghuili-files2/mejos.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://dejavu.sourceforge.netIn extracted file (stream_008_off0000c41e.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (stream_008_off0000c41e.bin)
  • http://scripts.sil.org/OFLIn extracted file (font_01_sfnt_off00007c35.bin)
  • http://www.gnu.org/licenses/gpl.htmlIn extracted file (font_02_sfnt_off00008d3d.bin)

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