Malicious PDF — malware analysis report

Static analysis result for SHA-256 69159bcea473575b…

MALICIOUS

PDF

40.3 KB Created: 2020-08-21 16:38:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 548d6f3ef0ad8abc06e7499f5ad5b6fa SHA-1: e0be390d099a6fd724e22872899bc7c9b58852dd SHA-256: 69159bcea473575b73b26168c5af0ed82fc572c455e308ee234ec67a51fb4af8
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to redirectors designed to obscure the final destination. The primary redirector, 'ttraff.com', is associated with malicious activity. The document body, though heavily obfuscated, contains references to the redirector URL and other PDF files, suggesting a link farm or phishing lure for free downloads.

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://ttraff.com/pify?keyword=homeostasis+worksheet+graph In PDF document text
    • http://zizeraj.meganreneewilson.com/uploads/1/3/0/7/130775350/xegut.pdfIn PDF document text
    • http://files.mayhemtheatre.co.uk/uploads/1/3/1/1/131163736/sezesiwaxokax.pdfIn PDF document text
    • http://files.townofhorseshoebeachfl.com/uploads/1/3/1/8/131871849/tonafobunasaxuk-lotoxub.pdfIn PDF document text
    • http://files.hcs-conference.com/uploads/1/3/2/7/132741029/lozepezerixupuz.pdfIn PDF document text
    • http://romifetop.mouselab.org/uploads/1/3/0/8/130874601/7708976.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/1/0432/7063/5678/files/96696202208.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/2585/0519/files/jabepimadaxesubidizexu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4597/6221/files/brahmastra_advanced_math_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1574/0314/files/toon_boom_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7896/7703/files/georgia_fishing_game_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6869/4432/files/59364770531.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4185/7448/files/texafetelotaxejagukexosus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2915/2423/files/xazozag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5551/2738/files/vijenipelixozadisuxojuki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2359/6693/files/agrochemical_pollution.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6838/3642/files/gulosexu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4260/2140/files/alfabeti_dad_visual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/280680.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8631/5684/files/fojogobixulebexifit.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_off000061ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61ED 5316 bytes
SHA-256: a92c72500f321ccb0bc3da0dee328c8e8ccb351714587ab0bccc767836e8be4d
font_01_sfnt_off000073f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73F2 9432 bytes
SHA-256: 22333a44165453ccee5ba3ee7fc3831bc69f4247cef49bf64cfae149f4255151