Malicious PDF — malware analysis report

Static analysis result for SHA-256 de4e009bab00b9c4…

MALICIOUS

PDF

42.9 KB Created: 2020-11-02 07:47:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-04
MD5: ec961b1c7efc29c66d42169f9bdbf213 SHA-1: 45d66d055dda313d4b12ccd32be19808e0646c22 SHA-256: de4e009bab00b9c4f00b1b4aaed8eee05c420824a81f938fed9d3de25dca39a7
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://ggtraff.ru/strik?keyword=driving+license+endorsement In PDF document text
    • https://s3.amazonaws.com/gotenukevepunin/45404244399.pdfIn PDF document text
    • https://fikepeti.weebly.com/uploads/1/3/4/4/134489659/9576608.pdfIn PDF document text
    • https://s3.amazonaws.com/rekorewexidiwo/desutuzebasapuvafelabu.pdfIn PDF document text
    • https://s3.amazonaws.com/zifozujiwi/chemistry_formula_for_neet.pdfIn PDF document text
    • https://s3.amazonaws.com/newopetusam/94338159499.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367279/normal_5f96233157c3a.pdfIn PDF document text
    • https://tebamebameden.weebly.com/uploads/1/3/3/9/133997375/1858074.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006a50.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006a50.bin)
    • https://uploads.strikinglycdn.com/files/0e5006c6-77e9-49a6-91a8-031cef0f6b6f/fisadudadobato.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5634c8e2-8ff9-4114-9643-87911c75bd59/thalia_mp3_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/65d2b466-e84e-4f80-ae38-717a4107fc94/voxorigituvunilipobanito.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d61b0230-9ec3-4b01-aa8c-23699baffa61/napujufuwufowemewesuw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/066da9a0-f5c6-4587-9016-5126f0c4884b/new_years_hashtags.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fc1aa1e2-be17-4b94-a176-6e7a3cba7bae/kijevowitolomagatemixakug.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 extracted file (font_00_sfnt_off00006a50.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006a50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A50 5108 bytes
SHA-256: 5edd5a02813955769ec52cc31b279b7234b9cc4a4f7c3bd83c27940189623806
font_01_sfnt_off00007bac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BAC 10412 bytes
SHA-256: cb7fa3aa2e553e99837729655456a3e37bb2f115416d712c806e29bc35541400