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=drop+down+list+in+android+eclipse In PDF document text

  • https://cdn-cms.f-static.net/uploads/4365540/normal_5f875b2a4b908.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4365628/normal_5f875bfaf2db4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368745/normal_5f882c5de66f9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368969/normal_5f886d222c608.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006f1e.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006f1e.bin)
  • https://s3.amazonaws.com/bejokazemur/25874008336.pdfIn PDF document text
  • https://s3.amazonaws.com/putelekireza/aha_htn_guidelines_2018.pdfIn PDF document text
  • https://s3.amazonaws.com/zetare/8518890700.pdfIn PDF document text
  • https://s3.amazonaws.com/wenobagupexekap/redavogidusetarekadugegar.pdfIn PDF document text
  • https://s3.amazonaws.com/jikopot/west_african_historiography.pdfIn PDF document text
  • https://s3.amazonaws.com/wilugugo/vuvexovosawemijen.pdfIn PDF document text
  • https://s3.amazonaws.com/bulolimepol/anticipatory_bail.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0485/0116/2146/files/41169859324.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0268/8427/6415/files/jopenabetuxorofivuvawo.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0440/6090/1526/files/world_of_tanks_blitz_hack_apk_ios.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/57344727-27d9-4f05-92d9-53b964884122/dark_souls_3_highest_ar.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b75ccc2e-28e6-4818-93e4-d04b191a7da4/53486933052.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7c4b2258-3175-44eb-88a7-75c1b4bb75bb/kogidiwixiweri.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/851ec2a5-cfd1-4458-8249-08fb19543a10/ramumorilegagusanorexivi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/bda17a7f-d4a2-44ef-a7cc-05ee2eee86eb/vuzetepidudovefazulogugeb.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_off00006f1e.bin)

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