Malicious PDF — malware analysis report

Static analysis result for SHA-256 9415c6628e89c8dc…

MALICIOUS

PDF

53.0 KB Created: 2020-10-26 17:12:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-12
MD5: f50417e969bdc516acf114ecdf5dd46f SHA-1: 2e8bd6240c3723b711d50468844c8351f84fd30d SHA-256: 9415c6628e89c8dc6aa209120e7ffde9542f5d2e3dc8487867af182af9b5f6e0
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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://gettraff.ru/strik?keyword=maleficent+t%25C3%25BCrk%25C3%25A7e+dublaj In PDF document text
    • https://cdn-cms.f-static.net/uploads/4385620/normal_5f8e04a541c7e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391327/normal_5f9630f4c2e89.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387419/normal_5f954e7e071a9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372740/normal_5f8cfe6cad4c5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376357/normal_5f89c1d535d89.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367964/normal_5f8b2c9af0ef2.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/ca8f4e5f-13df-468c-9463-38a4ec9f3c1c/46429180589.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/09883368-6f2d-4109-9490-369f7d9f59f7/vuwelisaniwikitelo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7dd9158f-b3fd-4426-96ae-d218597a515c/9403874006.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ee5ad7be-4778-4809-ade8-982800f13551/nifoserujonadoxukudebiki.pdfIn PDF document text
    • https://s3.amazonaws.com/susopuzupure/fiseda.pdfIn PDF document text
    • https://s3.amazonaws.com/memul/zibuwazubaletag.pdfIn PDF document text
    • https://s3.amazonaws.com/vekodupiwarobi/rokapipazowabovubipem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0503/6743/0843/files/72095734777.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/2052/8027/files/kujesipinixuwopikejexu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/6467/5490/files/conversion_of_pressure_units.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/3824/4518/files/gedasisip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0495/5504/6560/files/kesonuvofafolurelomesek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0464/4755/8824/files/the_white_heron_portsmouth_nh.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0488/9375/5590/files/merge_without_acrobat_pro.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006912.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6912 11320 bytes
SHA-256: 01809effc39a8ed57920c693cf1e27af8f8e78d833b20bd785018b527a2c3bb9
font_01_sfnt_off00008dbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DBC 5424 bytes
SHA-256: f546fa9e0cf65c0075326c12c8394b41d76a9800110341d36b8ff2c6115bc582
font_02_sfnt_off00009fca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9FCA 12116 bytes
SHA-256: 142401628bf3e3247fb1e155d2b00de7058b72862f04f9f1ce5b57f445c8b5fd

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