Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb41d19a43debcac…

MALICIOUS

PDF

46.8 KB Created: 2020-08-19 08:45:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d79210d946d9c100dcf4bb4ae99715c1 SHA-1: 46d4f98e6ee5eaed562e50e4b2422f75f0f24457 SHA-256: eb41d19a43debcacadcfb668efa60d906fd655741d6d835306b4ec7d1dc50cd8
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a primary malicious redirector URL pointing to 'https://ttraff.com/pify?keyword=types+of+friction+worksheet+middle+school'. The document body, though heavily obfuscated, also contains this URL, suggesting it's intended to lure users to potentially malicious content. The ML classifier strongly supports the malicious verdict.

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=types+of+friction+worksheet+middle+school In PDF document text
    • http://files.easthamiltonspiritualchurch.net/uploads/1/3/1/3/131380251/1304572.pdfIn PDF document text
    • http://files.davezinncreative.com/uploads/1/3/1/3/131379615/40412.pdfIn PDF document text
    • http://files.ctfusa.com/uploads/1/3/0/7/130775174/vadonowipowo.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/1/0428/2885/7503/files/mubaxutijakilaminajekog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6962/8828/files/maworilebewelawukenimid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3127/9269/files/concussion_movie_questions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2688/2471/files/repasozopajogevux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4026/8711/files/36781572948.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3290/3833/files/nasurobebefuzete.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8669/0969/files/fashion_clothing_catalogue.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6950/4662/files/jibogedizuvamulukobegis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1800/9251/files/53637213230.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1077/6478/files/aggregate_soundness_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2571/0756/files/dead_frontier_wiki.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_off00007707.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7707 5392 bytes
SHA-256: 114aa6f36e1b1e6ecb686a59627f3a77158f1cdddb1111640c547e78887f9a2d
font_01_sfnt_off00008950.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8950 10780 bytes
SHA-256: 071b6e9d86f4d87e0c05ff41a69c202f4b1ab51f6befe0ad7b2659b78c547cb6

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