Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4f49da47d7c5808…

MALICIOUS

PDF

41.5 KB Created: 2020-11-05 21:32:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-07-01
MD5: acb504175b8a4380c00e1497e4e5ccff SHA-1: 3e62a6b3bd943bc231666ebbe38fc724cf6b04e2 SHA-256: a4f49da47d7c5808be6c94bb17a07b65aec29878ba28bf36187e83fb9ae26399
76 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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://trafficel.ru/wb?keyword=interview%20with%20the%20devil%20napoleon%20hill%20pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4374699/normal_5f890061a8a43.pdfIn PDF document text
    • https://lesofetu.weebly.com/uploads/1/3/1/3/131378838/lofakomirizufaf.pdfIn PDF document text
    • https://sokuvotaboraj.weebly.com/uploads/1/3/0/7/130776263/zisunululajikosoj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374700/normal_5f8b05ba416a2.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000064bb.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000064bb.bin)
    • https://uploads.strikinglycdn.com/files/6afb8ceb-f064-47d3-b2b3-1de362cc655c/lerebuvovaroxegone.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/99fb62b9-8cff-4c09-a347-4201074bde09/92813046531.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5e5626c8-4f02-4335-9e48-775fb7668c37/napowigenaxufiwuvetulo.pdfIn PDF document text
    • https://s3.amazonaws.com/banula/buy_here_pay_here_in_uniontown_pa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3574f347-bab1-4e4d-ab92-0bbded8c312b/94151382814.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ed1b17ac-2a67-4c8e-b0fa-6fc77284a7df/velluvachi_godaramma_video_song_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f088ffdc-5fc7-4302-8cf2-a143d0dedaa2/nabazosafesaroluka.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2139b63c-05ad-4c23-8c61-6d0dae1c967e/unidad_didactica_las_profesiones_y_el_trabajo.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_off000064bb.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000064bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64BB 5040 bytes
SHA-256: 80a45dcf2bf6432514830bc0c2c7d3b9dcd222b682e1044cb36902864916067b
font_01_sfnt_off000075f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75F1 10452 bytes
SHA-256: 139d7d5f4543b1d49dd17f43985b25c88dc8835b7abc923fd5309afcaf76368b