Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce9eb666cf1c520a…

MALICIOUS

PDF

240.7 KB Created: 2023-05-29 09:36:36 +03:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 5.15.4) First seen: 2026-06-10
MD5: a72acdc70757e92ec7f33e88356ceb81 SHA-1: 3364205026a35feff60840673dd462b9d2abc618 SHA-256: ce9eb666cf1c520afd7487b4609a50c17b64844f1c0e8a4f034a9c580250bd00
106 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4740

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://bosetofupigapa.yubit.co.za/gdy?utm_term=edexcel+d1+textbook+pdf PDF link annotation
    • http://www.bitstream.comIn PDF document text
    • https://img1.wsimg.com/blobby/go/d37a9b24-bc42-4cb1-ab3b-3d1b21b01aec/downloads/57554409173.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/671d8571-de15-47bb-8cd8-b624751dbe0e/downloads/moxapalepug.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/7c4463e3-109c-48af-b9be-98e22cdf2116/downloads/mobile_patrol_lebanon_tennessee.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/671d8571-de15-47bb-8cd8-b624751dbe0e/downloads/53476748039.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000377d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x377D2 9452 bytes
SHA-256: aef894c7843de81a7a0cb0aec0e8b5cd950dc3439b7d2c97629d6db4fa5934c3
font_01_sfnt_off00038e31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x38E31 15136 bytes
SHA-256: 255a235ff2755c2d8bdbcde30fe48197a40986edfcc0cf4ba3885b08b7e76c6b

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