Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3e2c633f36cb824…

MALICIOUS

PDF

68.5 KB Created: 2020-10-06 22:58:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-21
MD5: 9d83f18c2190209dcff2d9ca85e0f467 SHA-1: a2b01d86c0b6af41d6ae9cd18d7bc957ba399276 SHA-256: d3e2c633f36cb824d46a49e460b0cba371a3e566e8b0068b152d3b8e18a45475
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://gettraff.ru/strik?keyword=burdge+chemistry+3rd+edition+pdf In PDF document text
    • http://xozoson.southeasthighlands.com/uploads/1/3/2/3/132303127/5f4a32ea.pdfIn PDF document text
    • http://pezenu.nataliabelov.com/uploads/1/3/0/7/130740434/8e075.pdfIn PDF document text
    • http://luveni.caribooliteracy.com/uploads/1/3/2/6/132696194/zuripezoginiga.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/a15553dc-c9de-4aa7-b6dd-12767fea5671/saduguladalexetobar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0225f5c5-d246-427c-88f9-dd369bd27717/rafosuwik.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c393bc39-869a-4322-9082-7c2c99f8b796/xepojisexamugafa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bd72678a-ff1d-4b11-b0e4-c57a07eeb3a9/jivolowodi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/df4ad117-ea6e-417e-8b9b-8ec6c95fd410/74311372021.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c32b55af-8c1c-47d3-9ef4-a03ccaf7a79f/wuwuwajoxalinozut.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f938c362-12d6-426b-89d5-5c5a42181d0c/43747818646.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2d80150e-0fc1-4a6b-bc13-791370bd1170/nosetesofojikaxomadavevi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/5495/9265/files/zisuramunifoven.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1712/5544/files/80254380886.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3388/5846/files/kulosiwijolufuvekosigu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7731/2411/files/mozejezoris.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7720/6178/files/vertical_knee_raise_machine_for_sale.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_off0000b799.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB799 5524 bytes
SHA-256: 3996b0d41ec10d6a5a5b2033f0b2531875b94b1d0ee612ac18ba7170ef37f4c8
font_01_sfnt_off0000ca4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA4A 14152 bytes
SHA-256: ee9c4710b5f61e66664537546af2b3f3b1e8ab8890aceebf62aefaa28adf81d0
font_02_sfnt_off0000f679.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF679 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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