Malicious PDF — malware analysis report

Static analysis result for SHA-256 b458e0be304a2fe6…

MALICIOUS

PDF

34.6 KB Created: 2020-08-28 15:51:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 98539749f71d5919c9963f7bbbd0e7f1 SHA-1: 52404480b84b3b58073bee43c5f8e91cfba35ad0 SHA-256: b458e0be304a2fe6f056776ecdf8a0e8a2e5bda11d25ea534452346f47df52c9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a large number of external PDF links, suggesting a link farm or SEO manipulation tactic. The primary malicious URL identified is https://ttraff.club/pify?keyword=new+holland+tc45da. While no scripts were extracted, the sheer volume of embedded links points to a delivery mechanism designed to either host further malicious content or to artificially inflate search engine rankings for specific terms.

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.club/pify?keyword=new+holland+tc45da In PDF document text
    • http://gorogu.hoowutwenphoto.com/uploads/1/3/0/7/130775511/d6dda1.pdfIn PDF document text
    • http://files.steps-of-faith.com/uploads/1/3/1/4/131413678/c91818dc33719.pdfIn PDF document text
    • http://files.percivaleast.com/uploads/1/3/1/3/131379296/9317646.pdfIn PDF document text
    • http://files.authorjdnelson.com/uploads/1/3/1/1/131163782/76b814.pdfIn PDF document text
    • http://files.worldyouthpeaceforum.com/uploads/1/3/1/3/131380177/d09f12a6bbd5b7d.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/1/0450/0570/1284/files/ap_biology_campbell_7th_edition_test_bank.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2490/6397/files/zababoxuxiwat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1901/0201/files/basic_accounting_principles_uk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2491/5359/files/basic_russian.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6908/7642/files/russian_beginner_vocabulary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0939/9193/files/temizlik_maddeleri_kimya_10_snf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/giratajolexodomofavewolov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7578/8184/files/80339395992.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0589/5075/files/fifazapazojufoxugatekireb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9595/6386/files/baxodolonogi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8921/6163/files/wakeze.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 8

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_off00004935.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4935 5028 bytes
SHA-256: 1708e0655a90c8a3b1fac72bc6ce6f7a492213ccaa1e612d07dcac3a342ebfce
font_01_sfnt_off00005a69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A69 10328 bytes
SHA-256: 8763b51321a43736b75ed44e5262290364d960de03bf4922175190b63d438180

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