Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9eeee3c76e5618e…

MALICIOUS

PDF

40.3 KB Created: 2020-08-04 05:35:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d0681884ec7e320b8939eabce43a411b SHA-1: e48a2ad58914209a68c7e34be1af833a80a449e0 SHA-256: c9eeee3c76e5618eb7d39dcf4db8619df376ba1707f23ee73ee1b91ced48382b
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The primary redirector URL is "https://ttraff.ru/pify?keyword=schema+amplificateur+audio+pdf", which is used in an SEO link farm context. This suggests the document is designed to trick users into clicking the link, leading them to potentially malicious content or phishing pages.

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=schema+amplificateur+audio+pdf In PDF document text
    • http://files.simplydivinesuds.com/uploads/1/3/1/4/131407812/23f3d849.pdfIn PDF document text
    • http://files.blwcenter.org/uploads/1/3/2/8/132814930/zofaxapazodi.pdfIn PDF document text
    • http://files.stuartlewisphotography.com/uploads/1/3/1/4/131454316/f40da78bb8dd86.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/1/0435/0138/7936/files/jivikutugegulogesifix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9501/4056/files/33794503608.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6595/6760/files/62444758932.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6392/5149/files/65998927601.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6793/9743/files/jodobavex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8107/8686/files/jekipegonoziw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7362/6524/files/95193793786.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0082/2934/files/58151191820.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5795/4467/files/62902726933.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7833/6165/files/89016921896.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8581/6217/files/44209626311.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_off00006038.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6038 5320 bytes
SHA-256: 237f8beddf4006a19040c713f909b24d0f1358c4705a1d761c57c3bc20470530
font_01_sfnt_off0000722b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x722B 10048 bytes
SHA-256: ebe5d918d8a793d4a9e5655aa20049b368d266ab6ff0203cb33b98786aff2e2e

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