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=ohm%2527s+law+experiment+lab+manual In PDF document text

  • https://digonowokeke.weebly.com/uploads/1/3/1/8/131856318/5f01512803a3.pdfIn PDF document text
  • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/duwivif.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4417652/normal_5f966cad24185.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4385020/normal_5f8d2ea688258.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4378393/normal_5f8c56f531025.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366043/normal_5f875bd5bbdce.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000a442.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000a442.bin)
  • https://s3.amazonaws.com/suximawo/moroduwafuvofededusejeba.pdfIn PDF document text
  • https://s3.amazonaws.com/tejuvonixag/antrenmanla_matematik_2.pdfIn PDF document text
  • https://s3.amazonaws.com/zamuriza/south_african_cocktail_recipes.pdfIn PDF document text
  • https://s3.amazonaws.com/nawuvud/22030097521.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/446e28ff-64b0-4392-a31d-f17817e314db/netujatigedivegefedig.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/04f36f75-0bcb-4381-9a58-e0963277a74c/lawimukuvuxabowij.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/96bacd99-3a3b-409d-a96f-c1b7cdc8a199/79291913899.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/903a41e5-0036-4ee9-9ab7-1edc612353c9/67030021643.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a6d2224e-1abb-43d5-93ee-3bccee21771b/runigumuzibujom.pdfIn PDF document text
  • https://s3.amazonaws.com/leguvefu/jebazesibexitijij.pdfIn PDF document text
  • https://s3.amazonaws.com/wilugugo/35720760382.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d9b443ed-f497-4c30-a302-def7af23d617/pigusorinigimekoturozo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/71be9001-890e-4c47-ac91-5dabd467941b/35710352437.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b5b14948-7924-479c-b299-29d3eb9ec069/lalafawinedofi.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3cbd30bd-7b37-472c-a50e-c5b684aab2a1/manualidades_con_periodico_paso_a_paso.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_off0000a442.bin)
  • http://dejavu.sourceforge.netIn extracted file (font_02_sfnt_off0000ded7.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_02_sfnt_off0000ded7.bin)

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