Malicious PDF — malware analysis report

Static analysis result for SHA-256 33c594e5b85ffa36…

MALICIOUS

PDF

41.7 KB Created: 2020-08-08 15:32:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7aa0e36db571d67fb5834ec0c3e3bcb0 SHA-1: 6276117d01e6b40b7d67920b5cf672d9f4378604 SHA-256: 33c594e5b85ffa36378fdf773594b7c1640e3e05b38658876bec8ea79d842d5f
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including one pointing to a known malicious redirector at 'https://ttraff.ru/pify?keyword=social+entrepreneurship+and+innovation+pdf'. This indicates a phishing or redirection attempt. The document body, though heavily obfuscated, contains this URL and other links, suggesting the primary goal is to drive traffic to malicious infrastructure. The presence of multiple Shopify-hosted PDF links suggests a link farm or SEO poisoning tactic to improve search engine ranking for malicious content.

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.ru/pify?keyword=social+entrepreneurship+and+innovation+pdf In PDF document text
    • http://files.northhamptonvfd.org/uploads/1/3/0/7/130739169/vasubori.pdfIn PDF document text
    • http://files.hudsonfarmersmarketny.com/uploads/1/3/1/3/131380875/8e2c07c776e415.pdfIn PDF document text
    • http://vasalito.geostudios.ca/uploads/1/3/0/7/130775085/todugoniworaj.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/1/0431/4746/0768/files/42241997682.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3993/2064/files/tuzir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3882/6908/files/41709909656.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/68769425665.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4537/1549/files/best_reader_and_editor_for_windows_7.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2256/5032/files/nogediguwexutopow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3699/0885/files/2265813435.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7002/9975/files/4672051720.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2044/3045/files/yamaha_maxim_750.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6127/2995/files/nuzadodinukelefemu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6437/8022/files/boyer_moore_algorithm_java.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6636/8935/files/67353143743.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8130/0123/files/51909844255.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 3

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_off00006353.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6353 5408 bytes
SHA-256: 21157f7e94cbea458289b2b20d113de3028bb91394d22f81c706c05d452946b0
font_01_sfnt_off000075b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75B8 10980 bytes
SHA-256: c3af6297959abd64c19f6627ff0d515b4357d7afda123bf2d89cdb099d7f1e52

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