Malicious PDF — malware analysis report

Static analysis result for SHA-256 478ccef6aacb3a3d…

MALICIOUS

PDF

37.7 KB Created: 2020-11-02 12:50:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-20
MD5: 6c1a552d644a2fbff84c06e3f750bea6 SHA-1: 0c31eb32366bc7ac7fe4938fa8996a51eb94ea8f SHA-256: 478ccef6aacb3a3d1de2053208d9aa7c6aa6d4c158045de3bacc16c5f612f7ae
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://cctraff.ru/wb?keyword=msqc%20christmas%20tree%20table%20runner%20tutorial In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366400/normal_5f87ca4ea3082.pdfIn PDF document text
    • https://wuwotozon.weebly.com/uploads/1/3/4/3/134315251/2727689.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0507/0605/5360/files/50650500353.pdfIn PDF document text
    • https://s3.amazonaws.com/gupuso/17149335075.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eb83c0ad-76a7-4c62-9642-a322c219d64b/419891316.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/26ea63e1-1f7a-4536-814f-1c0802678bf7/magnetic_thinking_putty.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/5827/2691/files/gopopakewiludogeru.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/33fffb18-5c32-4e7f-b638-25768b171d26/zuxogekenewori.pdfIn PDF document text
    • https://s3.amazonaws.com/ragejufa/bevewikavejuruje.pdfIn PDF document text
    • https://s3.amazonaws.com/gaxuremewuger/ncis_theme_song_guitar.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_off000054d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54D6 5308 bytes
SHA-256: 75f78680eac51407b64624d5f51bbd3dd28d9721126f6579f26a46ca31b52ace
font_01_sfnt_off000066c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66C6 10484 bytes
SHA-256: e5b4b9d86c557d956c177b22eefc926ea2dadb8e2630fc6fd973fcc844505cf5

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