Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd709ed2d6d84d96…

MALICIOUS

PDF

37.5 KB Created: 2020-10-02 07:53:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-18
MD5: 9fc98f7e3594b82c3213629b9784197d SHA-1: 9927507e9a4e5901b58274923a47c75f512e0a06 SHA-256: cd709ed2d6d84d967b9c4832fa9f310df759df648b5370874fb1e3178e27bbf1
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://ggtraff.ru/strik?keyword=pokemon+crystal+rom+espa%25C3%25B1ol+gba In 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/63c9da5c-0e5b-498c-b6ca-35ddaa6b0377/mivedanalinebe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4c0f702e-1972-4fe8-86f9-12c29ff8918a/8328941471.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/62d880d5-0800-4b16-a60c-908f716f2d61/63187466445.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e57a8379-07cd-4ef5-a7a7-23ac13c43537/93219129686.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/838c6ff0-11d8-46fb-a534-7d7eb6ea08cd/56867539035.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c5546bb9-2e8d-4fd3-a9b9-a0ea44309bea/xifemezuput.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/28b3067d-43eb-48bf-a843-2f0b2cfc617c/42806870942.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d9cef4cb-216b-497a-b629-cb24a8ede1d2/teverozuriw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8281/7441/files/sukhmani_sahib_paath_in_hindi_with_audio.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2870/7488/files/45356708083.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1905/9868/files/conservation_vs_preservation_apush.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1501/8392/files/orchestra_vs_symphony_vs_band.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_off000050a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50A9 5772 bytes
SHA-256: 3fbce08cae539fbf1c51b4c9d6e639eda22b892104f21e09bd7c2fcbe7b26165
font_01_sfnt_off00006402.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6402 10456 bytes
SHA-256: cd9203383c8aacccdfce0c36ab42853b500cba44385687d200434c7965b26188

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