Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6feed82573dabe1…

MALICIOUS

PDF

45.7 KB Created: 2020-08-21 10:42:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d24f66326598e2cc94d0e69f45cfece8 SHA-1: ed61fd8e8f84a9a345868ad8e4786e0395ef5307 SHA-256: d6feed82573dabe1cf6ccb16a1b6dd304d7c9962268169b35cd77308f7f4b996
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to malicious infrastructure, specifically a redirector at 'ttraff.cc'. The document body, though heavily obfuscated, contains a reference to the same URL, suggesting a phishing or scam lure. The presence of numerous external PDF links, many pointing to Shopify, further indicates a link farm designed to obscure the malicious destination.

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=brain+gym+ejercicios+para+ni%25C3%25B1os+pdf In PDF document text
    • http://sodet.mandrcatering.com/uploads/1/3/1/4/131453850/vower-jurineragagug.pdfIn PDF document text
    • http://files.nicholasvicknairdesigns.com/uploads/1/3/0/7/130740033/1259441.pdfIn PDF document text
    • http://files.twistedtreeyogaroom.com/uploads/1/3/0/8/130814200/nonufovafokuwiv-mezibufud.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/1/0440/8868/8790/files/93124371825.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9186/1412/files/11613182938.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2442/2811/files/zezibim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2373/5720/files/bodepajovirizadikesefama.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9222/9787/files/71575660813.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1288/0541/files/rosumowugudevadaxox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8318/5832/files/75240126078.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8897/7815/files/zegidatuguwuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6104/1569/files/takosazetaredasili.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/87899810879.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_off000070a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70A5 5884 bytes
SHA-256: 75b57cd808fadf0dd8942db6d63962073a6591803434432fd24c228839e539dd
font_01_sfnt_off0000845a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x845A 11044 bytes
SHA-256: a78a7cdf054c342d16dfea1ff4c1ca614ffeecc739d6cd80b425a76e25715bf3

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