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/pify?keyword=international+phonetic+alphabet+pdf+download In PDF document text

  • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/4d5351fbb209c0.pdfIn PDF document text
  • https://sasakafu.weebly.com/uploads/1/3/4/3/134371045/lulavigovaver.pdfIn PDF document text
  • https://zelapagetuwuj.weebly.com/uploads/1/3/1/4/131406140/b113b132cb.pdfIn PDF document text
  • https://repotadidutu.weebly.com/uploads/1/3/4/3/134310826/55ac29925.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366633/normal_5f873afc5b2f9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4393026/normal_5f8ea6ba3f5ff.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4413374/normal_5f94eda1d696e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4383467/normal_5f9240874c30b.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367279/normal_5f8bcd98af607.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4367303/normal_5f874794b1ec0.pdfIn PDF document text
  • http://fontawesome.iohttp://fontawesome.io/license/In extracted file (font_00_sfnt_off00006727.bin)
  • http://www.ascendercorp.com/In extracted file (font_02_sfnt_off000079ff.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_02_sfnt_off000079ff.bin)
  • https://uploads.strikinglycdn.com/files/fa3317af-d190-45c1-addf-e2e4d32e3755/puwipisufifuliba.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/215d989b-e941-462d-8f56-fa14a046c524/81598181336.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9dea0498-a215-494d-af8b-2d341b49a3ae/39352302090.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/54f45c79-1783-4fa4-9a06-4faf5fe700a2/betilemiwuzenakadebezabil.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e476fcb5-195f-47c3-afc0-275ac5f91c80/examen_segundo_grado_bloque_1_2017.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4d62150a-9a5a-4ab8-89fd-f6cc2eea13f9/ark_onyc_taming.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/75b875b1-db74-4d92-a2af-542ad5fd92c6/nofiwukikaritidekikesa.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8fba1b56-52fa-41c1-a0be-4391fa9f56a4/vozar.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/eaac424c-d1ce-48ce-be73-b7565ce6a0ed/2321668963.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e9bcc9cd-0eae-45d7-aa12-9ee1e07b8dc9/vajivomevimewug.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_02_sfnt_off000079ff.bin)

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