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://ggtraff.ru/strik?keyword=imagenes+de+sumas+para+preescolar In PDF document text

  • https://tibiwurab.weebly.com/uploads/1/3/2/6/132695994/radorudezipaxorobewe.pdfIn PDF document text
  • https://zoveponezewuda.weebly.com/uploads/1/3/0/7/130738822/7093334.pdfIn PDF document text
  • https://zisokilusativ.weebly.com/uploads/1/3/2/3/132303079/gugojipelonesek-zutamimamimone-jivigopol-gatufob.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00005ee9.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00005ee9.bin)
  • http://www.daltonmaag.com/In extracted file (font_03_sfnt_off0000a9ce.bin)
  • https://s3.amazonaws.com/kavitokolezub/bepolatuzoxeki.pdfIn PDF document text
  • https://s3.amazonaws.com/henghuili-files/describing_physical_appearance_esl.pdfIn PDF document text
  • https://s3.amazonaws.com/felasorarabipis/94701795661.pdfIn PDF document text
  • https://s3.amazonaws.com/zirojopemup/85967725058.pdfIn PDF document text
  • https://s3.amazonaws.com/tadovu/zibefixuku.pdfIn PDF document text
  • https://s3.amazonaws.com/henghuili-files2/fekajozokebuzedegusup.pdfIn PDF document text
  • https://s3.amazonaws.com/wilugugo/jenatuzonizatazavadefaw.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1ec05565-f89d-4400-a5d7-3c470f5b1d20/zutapavavajanud.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1004e0e6-c96c-41dc-a1fb-0b1b1d7e1d83/36481920869.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/117ebc17-3648-4c5b-aca2-53a9bd122b79/5124714246.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8ac4f3f2-3afd-4ba7-bec1-8d0b3cc20c92/zemitusidipabu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/253a0873-c085-472d-9bc4-d71baa6bc5b8/66646839718.pdfIn PDF document text
  • https://s3.amazonaws.com/subud/wisemonatilopupasa.pdfIn PDF document text
  • https://s3.amazonaws.com/henghuili-files/erico_cadweld_molds.pdfIn PDF document text
  • https://s3.amazonaws.com/zuxadol/synonyms_and_antonyms_worksheets.pdfIn PDF document text
  • https://s3.amazonaws.com/tetazino/cisco_lab_manual.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5c6cbec4-63da-46b5-9316-f61d4abd81d2/25741969518.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5558ac7e-1333-4002-8d60-6646fc6f5e5d/fametajadaxizinititukezu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/700b5be6-8259-4a7d-9bac-a81b0bd4e3ec/lusetumitod.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3ed17d8f-cc6d-471d-aa35-1d3b3df457b0/voziluwivejusefofedubuv.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e23ded74-d37b-4004-8ace-19f1bda5cc6a/26306899590.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_off00005ee9.bin)
  • http://dejavu.sourceforge.netIn extracted file (font_02_sfnt_off000094af.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_02_sfnt_off000094af.bin)

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