Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0ea86356aa52bb5…

MALICIOUS

PDF

41.5 KB Created: 2020-10-07 02:31:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-02
MD5: a94108d40b9863150837e47faa2b32fb SHA-1: 6aa59cf06c33e8d69caa521fed51040f0e11aa48 SHA-256: e0ea86356aa52bb512217d9644688198f46f51dcce52ad4b455d192dd1e7494a
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://cctraff.ru/strik?keyword=madden+19+playbooks+ranked In PDF document text
    • https://site-1038670.mozfiles.com/files/1038670/zizudojulofebutiwadi.pdfIn PDF document text
    • https://site-1036991.mozfiles.com/files/1036991/botivaf.pdfIn PDF document text
    • https://site-1039563.mozfiles.com/files/1039563/89322930205.pdfIn PDF document text
    • https://site-1038790.mozfiles.com/files/1038790/46255550897.pdfIn PDF document text
    • https://site-1036761.mozfiles.com/files/1036761/91680816136.pdfIn PDF document text
    • http://files.cristinacaruana.com/uploads/1/3/1/0/131069886/c9642871239.pdfIn PDF document text
    • http://sazup.jvincentwalsh.com/uploads/1/3/1/4/131406676/zodalojixulutezexome.pdfIn PDF document text
    • http://zezikuna.janetmariesola.com/uploads/1/3/0/7/130775388/a65db.pdfIn PDF document text
    • http://rikus.englishkb.com/uploads/1/3/1/8/131856194/wumosajopilimo.pdfIn PDF document text
    • http://putur.northbristolrfc.co.uk/uploads/1/3/1/4/131406149/c89d9d615b.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006498.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006498.bin)
    • https://cdn.shopify.com/s/files/1/0480/9087/4020/files/ancient_indian_war_movies.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/0447/1707/files/the_wanderer_cast_papermill.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/6282/8449/files/scsi_vs_iscsi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7956/4448/files/12900788750.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_off00006498.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006498.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6498 5472 bytes
SHA-256: 1a05f0645913557ab49dd931af0648de39cac9857c4752207c820b374fbb31e5
font_01_sfnt_off00007750.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7750 10052 bytes
SHA-256: 6f2e3dab4a8ce8262e2b71882c114e3aeb0efdcaac4a18227ba9f3a14585056a