Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ddc249cf13efd71…

MALICIOUS

PDF

41.6 KB Created: 2020-10-27 01:32:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-26
MD5: ea9db0a79c4a122a966592be9aff03d8 SHA-1: 3c03e16a69b511644a4b90696a6e02b217799715 SHA-256: 3ddc249cf13efd71f0f882d5c294aed6929b33fadd714b840acc8559594b98ec
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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/wb?keyword=weber%20genesis%20silver%20parts%20manual In PDF document text
    • https://cdn-cms.f-static.net/uploads/4380682/normal_5f9248e5c9f52.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378846/normal_5f8a15986e60b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377377/normal_5f900864874ac.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390323/normal_5f923d024c57d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368496/normal_5f8863721cbfd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393179/normal_5f9426598dda2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365541/normal_5f89d32175cdc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379722/normal_5f8f245c39db8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393188/normal_5f95149077945.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/1351ae35-241d-46a8-bd66-1728e963a38e/6205963778.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/35410094-9e32-4a53-aa77-7c9a5cc775ca/vutavosugo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ad7163e2-e072-4465-b3bf-7dc76c4ff37e/black_and_decker_toaster_convection_oven_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4043/9446/files/how_to_use_a_ceramic_sharpening_steel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8104/0033/files/manifest_content_vs_latent_content_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2629/8533/files/xerox_workcentre_7845_service_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/xabalaru/pilofofuj.pdfIn PDF document text
    • https://s3.amazonaws.com/bopuxosavubare/42060517816.pdfIn PDF document text
    • https://s3.amazonaws.com/vifusupegiza/waxujumisis.pdfIn PDF document text
    • https://s3.amazonaws.com/jefobexapulow/lotafotazogilanixozuzo.pdfIn PDF document text
    • https://s3.amazonaws.com/minaxigevani/salesforce_developer_interview_questions_and_answers_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7190/4673/files/catcher_in_the_rye_barnes_and_noble.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/6899/2935/files/3150692050.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/4751/7845/files/panasonic_bread_maker_manual_sd_2502.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/3809/9614/files/vepolurijufigitenima.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 PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000621f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x621F 5352 bytes
SHA-256: d5f231355acf6e37d7e15010c935939a869012920bcb6bc439b4fd338f2dc92f
font_01_sfnt_off0000744c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x744C 10740 bytes
SHA-256: a5048409d0c289bebef16d3d5271dcecdc6e7e5ef6c83afd7c4dfde8a3f2bb01