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=diccionario+portugues+brasil+espa%25C3%25B1ol+pdf+gratis In PDF document text

  • https://cdn-cms.f-static.net/uploads/4377116/normal_5f959d1538ad2.pdfIn PDF document text
  • https://bopiwode.weebly.com/uploads/1/3/4/3/134367631/9e8269f14a3fc.pdfIn PDF document text
  • https://jemiwuwavaza.weebly.com/uploads/1/3/0/8/130814288/bibesekukemugedovofa.pdfIn PDF document text
  • https://delujopasetew.weebly.com/uploads/1/3/4/3/134399242/gitumisupig.pdfIn PDF document text
  • https://latenenagizogip.weebly.com/uploads/1/3/2/6/132696064/zamus_xuzexu_sugufefulel_tedug.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4393638/normal_5f90b2fc12e1d.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369914/normal_5f8c1b94a8450.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374518/normal_5f8f282fa3344.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368741/normal_5f8be54e99060.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4369506/normal_5f87dd7d2db08.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4378599/normal_5f8dbd4a25998.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368752/normal_5f890f2baad32.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4412568/normal_5f962fb1787c4.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_02_sfnt_off00008722.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_02_sfnt_off00008722.bin)
  • http://fedorahosted.org/lohitIn extracted file (font_05_sfnt_off0000db0a.bin)
  • https://uploads.strikinglycdn.com/files/a8e35e3c-d7d7-4270-9062-60b1c99a51ab/navedtra_14139_assignment_6_answers.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/53b9552a-4797-480d-a356-6040789263a1/18340142155.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1d0d24fa-dfeb-4c04-bb54-e843018bf56a/91569649730.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1d920aae-b74c-4a8c-9ba8-10a9d58ffe9f/pugipebumixomogatinifam.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
  • https://savannah.gnu.org/projects/freefont/In extracted file (font_00_sfnt_off0000680d.bin)
  • http://www.gnu.org/licenses/In extracted file (font_00_sfnt_off0000680d.bin)
  • http://www.gnu.org/copyleft/gpl.htmlIn extracted file (font_00_sfnt_off0000680d.bin)
  • http://scripts.sil.org/OFLIn extracted file (font_02_sfnt_off00008722.bin)
  • http://dejavu.sourceforge.netIn extracted file (font_04_sfnt_off0000c3fd.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_04_sfnt_off0000c3fd.bin)

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