Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b46d365db903cf2…

MALICIOUS

PDF

32.8 KB Created: 2020-08-24 11:44:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 16ca24cce54373fa32e79fef8f97c624 SHA-1: f686c9951d61b27df9dacb2ff61985298a998e34 SHA-256: 3b46d365db903cf2c2e2bafbfbf4ec6d52de84b9f13fa883f7180303e853af0a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains this URL and appears to be a lure related to a 'bricks n balls game'. The presence of numerous other links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to distribute malicious content. The ML classifier also strongly flagged this PDF as malicious.

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=bricks+n+balls+game In PDF document text
    • http://files.yogawithlori.org/uploads/1/3/0/7/130739693/e9a1182947a8103.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/1/0431/0990/8642/files/pokizevavosabux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5457/0399/files/zopuwirutes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3063/3881/files/free_printable_colouring_sheets_for_christmas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4651/0504/files/futuxenoniradalezazar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2067/3433/files/fender_serial_number_lookup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7210/2308/files/11230778372.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2323/5232/files/27119696704.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7950/7875/files/aokigahara_forest_japan_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8573/9685/files/libros_minimalismo_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2672/7580/files/jepasevalije.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7015/3113/files/return_material_authorization_form_template_excel.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

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004453.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4453 5372 bytes
SHA-256: 6cd7173a3ee98e74d771000ddd961c810eb57ea439a32ae6241ddec753e6ed94
font_01_sfnt_off00005686.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5686 9452 bytes
SHA-256: 976aa684e8ca9390ec19e8ad70944ddc52e0de7c1ccfb39ed434c6ca03bbca52

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