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=calendar+widget+month+%252B+agenda+premium+apk In PDF document text

  • https://cdn-cms.f-static.net/uploads/4369501/normal_5f8b951e1a8e6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4379500/normal_5f8e866e273a7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366011/normal_5f87292b5bc2a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4387573/normal_5f8ebff35c8cc.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4370267/normal_5f8977202bba7.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4368741/normal_5f88083edff02.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374177/normal_5f8a8afd6e287.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4388608/normal_5f9400104092a.pdfIn PDF document text
  • https://liwifaxuje.weebly.com/uploads/1/3/0/8/130874244/b899fc3e78b.pdfIn PDF document text
  • https://rezizeme.weebly.com/uploads/1/3/0/7/130775554/pesegisekojen.pdfIn PDF document text
  • https://pabenegoje.weebly.com/uploads/1/3/4/3/134348732/wojekipik_ketudetivarekam_barexuwibedi.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_01_sfnt_off00006b08.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_01_sfnt_off00006b08.bin)
  • https://uploads.strikinglycdn.com/files/ddc302c2-1add-49d3-b8fc-9259f8da778f/ansi_y14_5m_2009.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6974cab1-1105-490a-8999-872e329ea6d6/bostitch_6_gallon_135_psi_air_compressor_manual.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2c6ef73e-f50b-45af-a6c8-0d2863ab9bd7/palepubopawif.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8377f702-de4d-474d-9d26-2e612a2dcd91/principles_of_biology.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/49eb41cd-7dce-4cd8-8c1f-b9fe911959b5/83720137965.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a1bf3fc5-7401-4471-b315-d7b89edfa2c0/75313855331.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7c37285c-c5d6-4136-835f-307d2069e63d/tazidegitisaborixiwoza.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/adf11978-99aa-4dec-bbaf-52760bd93a10/16857969116.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a77ffe5d-9695-44ed-9098-e76609f38a0e/kimexini.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/550102ee-edb6-4b49-b73a-509d98309758/descargar_counter_strike_source_mega.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6caa25f0-c7be-4df6-a4ea-680e9a30d656/69372303679.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/35156b67-63bc-4c4a-9fd6-bf56b0aa6f71/sidudusumesidigagi.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_off00005b14.bin)
  • http://www.gnu.org/licenses/In extracted file (font_00_sfnt_off00005b14.bin)
  • http://www.gnu.org/copyleft/gpl.htmlIn extracted file (font_00_sfnt_off00005b14.bin)
  • http://scripts.sil.org/OFLIn extracted file (font_01_sfnt_off00006b08.bin)

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