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=o+level+chemistry+notes+pdf+download In PDF document text

  • https://cdn-cms.f-static.net/uploads/4413122/normal_5f96199abdfd4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4376103/normal_5f899ee1662c7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4416510/normal_5f9612e6748ea.pdfIn PDF document text
  • https://soxajenukaru.weebly.com/uploads/1/3/0/8/130874283/limifitudeju-pulejado-nejopelore.pdfIn PDF document text
  • https://panasijizikefiz.weebly.com/uploads/1/3/4/4/134446590/442522455996.pdfIn PDF document text
  • https://wotufoxak.weebly.com/uploads/1/3/4/3/134308946/9df1c7048796dd5.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000061aa.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000061aa.bin)
  • https://uploads.strikinglycdn.com/files/0147c51c-2fa2-4924-a63e-d7c8c1218eaa/96458289791.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d01f7e6e-b42a-49ac-9691-a2310ce59098/12097914068.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b3a92804-e2bc-458c-b6de-e67817d9ed6f/86441438275.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/fe937af9-0958-4d2d-8fe3-fed03552393d/nome_ousa_madagascar_3_torrent.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/74aa094a-695d-4cff-b7b2-9c200613d61f/96696995985.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/817d8fb1-5bc8-443a-8da5-e23d84a472e5/veroravibedijezevalave.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/88218f00-1d80-4bdf-8749-3110f15e6997/kapuzovatapex.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/984bffdd-ff6b-46a3-803c-7b28b8ebe326/dupuribigupuwos.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/dd97c5fa-5340-42dc-8ace-c16e1283f7b8/the_first_noel_phil_wickham_chords.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0500/7153/5774/files/pokemon_go_hack_apk_android.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0437/2021/2645/files/83356032480.pdfIn PDF document text
  • https://s3.amazonaws.com/henghuili-files/mukozeziweb.pdfIn PDF document text
  • https://s3.amazonaws.com/fasanag/marcus_aurelius_meditations_translated_by_gregory_hays.pdfIn PDF document text
  • https://s3.amazonaws.com/subud/2385058331.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_off000061aa.bin)
  • http://dejavu.sourceforge.netIn extracted file (font_02_sfnt_off000099f4.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_02_sfnt_off000099f4.bin)

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