Malicious PDF — malware analysis report

Static analysis result for SHA-256 df82f76edd6832ec…

MALICIOUS

PDF

40.8 KB Created: 2020-08-21 03:25:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fec022a8b99619a5a542a0b85e40eb51 SHA-1: cfb765d9bea659c3f06c78bb3f6f8f622189c72f SHA-256: df82f76edd6832ec707c69d11aa5b1078f68c7ca08b98766b9b8ab787fc00709
234 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious Link T1566.002 Spearphishing Link

The PDF contains a mass external link farm, with one critical link pointing to a known malicious redirector. The document body text and heuristics indicate a social engineering lure to install a browser extension or update, which is a common method for malware delivery. The primary malicious URL identified is https://ttraff.com/pify?keyword=chromedriver+.+default+directory+python.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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://ttraff.com/pify?keyword=chromedriver+.+default+directory+python In PDF document text
    • http://duvega.globalafricancreates.com/uploads/1/3/1/4/131437615/jisilomodidigerutova.pdfIn PDF document text
    • http://files.princesspalacetijuana.com/uploads/1/3/1/0/131070035/a2ea29.pdfIn PDF document text
    • http://files.walnutcreekbulldawgs.org/uploads/1/3/1/6/131636562/98136157d.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/1/0437/4613/2119/files/fivosuwusogaxugadogo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9587/6003/files/38598830677.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6152/4118/files/vatavetiwavenin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4617/4877/files/35978006497.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5157/3657/files/lil_durk_higher_mp3_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4361/8965/files/59739904194.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/8536/9239/files/alter_ego_plus_a2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4897/6027/files/38764922750.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3917/8399/files/panegexekakaxufofukafenil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2920/8983/files/xevolo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5136/8104/files/9236952328.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_off00005ee3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EE3 5316 bytes
SHA-256: 1a3f633167137b823a58660f4c85c2ad6efe52e2918777424ee574516cfd3905
font_01_sfnt_off000070ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70EA 11248 bytes
SHA-256: 7bab5f5b4cc48a4e3d3a96c19ba6c6093b3592fd4acf300802f5fcf48f102f48