Malicious PDF — malware analysis report

Static analysis result for SHA-256 478fe548e8fd57bc…

MALICIOUS

PDF

63.3 KB Created: 2020-10-22 23:34:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-20
MD5: 03d13f9f2a660ff00e59a805606382a7 SHA-1: 16d99aa1c3fda3aebe268f3c24c0d378be776e3b SHA-256: 478fe548e8fd57bca581e1027ae4c0238269a5973ea390ee4ca771274a4de445
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/123?keyword=sorceress+bdo+guide+2020 In PDF document text
    • https://cdn-cms.f-static.net/uploads/4370056/normal_5f8c7aeced5c4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382643/normal_5f9078578b66b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368223/normal_5f906a8da0f11.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369307/normal_5f8965244e67d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381529/normal_5f90c8f693f3e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366397/normal_5f8c19fc9c8cb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369509/normal_5f8c5c5273b09.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382782/normal_5f8f3ed71f6a3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378855/normal_5f8ba83c67331.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369182/normal_5f8a16ebac02c.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/1/0485/1325/3538/files/49041008334.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0477/1525/4428/files/the_westing_game_movie_common_sense_media.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0488/3218/4485/files/mekoxarigepez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7413/9813/files/kapedaximis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2db5efe6-66d9-46bb-9946-4e265a4b16e7/tiviwedalejuzofepajom.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0fe661fb-e548-4502-ae3f-509782df48f6/ingilizce_okuma_kitaplar_level_1.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0206a2a6-873b-4674-ae3c-58661472a55d/nagubiriruxikamuladugix.pdfIn PDF document text
    • https://s3.amazonaws.com/wonoti/wijuxipupokodudixadunide.pdfIn PDF document text
    • https://s3.amazonaws.com/kavitokolezub/nccn_guidelines_breast_cancer_2014.pdfIn PDF document text
    • https://s3.amazonaws.com/wuniku/summary_of_apartheid_laws.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files/98291285801.pdfIn PDF document text
    • https://s3.amazonaws.com/felasorarabipis/17808750911.pdfIn PDF document text
    • https://s3.amazonaws.com/gurowozenupifi/list_of_automobile_industry_in_india.pdfIn PDF document text
    • https://s3.amazonaws.com/wonoti/17005503650.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_off0000b813.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB813 5384 bytes
SHA-256: ad33abd5784a16cb6809ab1ad5d0736e099bd95c9e85d65985f1fba352fc7db4
font_01_sfnt_off0000ca5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA5F 10932 bytes
SHA-256: 9272752a30c2a2f35ff0b3e53501acad4d4ea3bf93ecf1cef8ff4f6510ef3663