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/123?keyword=el+camino+college+spring+2020+schedule In PDF document text

  • https://cdn-cms.f-static.net/uploads/4383924/normal_5f95edf624c26.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4402707/normal_5f91e361260b1.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366011/normal_5f873c853775f.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370777/normal_5f989a462aa31.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4376369/normal_5f944e7be7af5.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375195/normal_5f903de91fb14.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4412999/normal_5f97e4b4c4c2c.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006f6f.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006f6f.bin)
  • https://s3.amazonaws.com/saziwijaxodav/jabawiwizubijaj.pdfIn PDF document text
  • https://s3.amazonaws.com/fifomi/ascaridiase_ciclo.pdfIn PDF document text
  • https://s3.amazonaws.com/xanebavifamopez/usa_anthem_lyrics.pdfIn PDF document text
  • https://s3.amazonaws.com/liguwubore/marketing_research_free_download.pdfIn PDF document text
  • https://s3.amazonaws.com/subud/820376172.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6ba65663-6008-4004-8691-3d0b6c1bdcb7/98383415581.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2658256c-e203-443d-a0a8-54e43856ad60/homebrew_warlock_patrons.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/be3ed17f-3b9a-4c5c-bafb-3e84a22e9194/mahaganapathim_remix_mp3_song_free_d.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/100f34da-6a3f-42c6-95a5-a8ddcecfe64d/21017778525.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0497/5978/1023/files/chopin_piano_nocturne.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/6766/0706/files/talking_tom_apk_mod.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0457/3783/6710/files/zalef.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5b8836bc-1b86-4a13-ae6d-e06e86c3be00/insidious_3_full_movie_in_hindi_yout.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cefec5e5-2340-4ad0-aec1-0acfbdb1ad10/57870323403.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8f6caec5-2c7c-4ffa-8143-63ca63540aa4/wazomalegalosiragafovizo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/376add37-6954-414d-bd64-3d445f13f630/tabela_de_conjunes.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b193ff8c-e54c-48ac-b260-dbd957769954/12652350935.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 extracted file (font_00_sfnt_off00006f6f.bin)

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