Malicious PDF — malware analysis report

Static analysis result for SHA-256 809e032609884c03…

MALICIOUS

PDF

64.2 KB Created: 2020-08-23 14:21:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 942aeeac2896555626c7145e7a506c31 SHA-1: 63bab5698c736353e1bbd12cdab38df6c06140b9 SHA-256: 809e032609884c033f20e935ceec2f1f9b28ec376ea6de3c53817175c69acd76
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple heuristics indicating it's a malicious redirector, specifically designed to lead users to a link farm. The embedded URL, 'https://ttraff.cc/pify?keyword=educational+research+review+submission+guidelines', is identified as a malicious redirector. The document body, though heavily obfuscated, contains this URL, suggesting the primary purpose is to trick users into clicking it. No scripts were extracted, but the PDF structure and linked URLs strongly indicate a phishing or malware distribution attempt.

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.cc/pify?keyword=educational+research+review+submission+guidelines In PDF document text
    • http://files.allmybees.com/uploads/1/3/1/3/131381288/e2ef3.pdfIn PDF document text
    • http://files.puppyculturestories.com/uploads/1/3/0/7/130739027/nibudig.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/1/0428/9835/8432/files/51994241049.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5655/2343/files/sedaxuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/4518/0824/files/72259113666.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gofifarigomikidapowokov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4669/9165/files/23584794609.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1290/5384/files/human_development_report_by_undp.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6353/1933/files/monthly_calendar_template_2019_australia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8515/9845/files/77383406985.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1131/5611/files/domiwasupisorudik.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_off0000bc1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC1D 5604 bytes
SHA-256: f7c6feaee480756173a1d6e49c3636e804a3899d18c78977258cdcfbd06e84ca
font_01_sfnt_off0000cf08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF08 10736 bytes
SHA-256: df37e24d0ab9bafb9256b37f8b94f6ba625f47ea87367707b0cee7fd0cd820f4

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