Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a24911ff93caccb…

MALICIOUS

PDF

36.5 KB Created: 2020-07-27 13:35:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f0c444237b48667c4496868c28a7dd4b SHA-1: 7a82d7dc6a57f55bd0c09da5262d0d992445cbf1 SHA-256: 7a24911ff93caccb2be83ea77110478c18da82587ad36481ca42a981d24345b0
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm designed for SEO manipulation. The primary redirector URL, https://ttraff.com/pify?keyword=atmosphere+brush+font, is flagged as malicious. While no scripts were extracted, the PDF structure and embedded links strongly suggest a phishing or malware distribution attempt, likely initiated via spearphishing.

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=atmosphere+brush+font In PDF document text
    • http://files.thevimlife.com/uploads/1/3/1/3/131383760/85bde27824d877f.pdfIn PDF document text
    • http://files.tanurhideboerne.com/uploads/1/3/0/7/130739809/pigimojubajepik.pdfIn PDF document text
    • http://files.ellvenus.com/uploads/1/3/0/7/130776416/ba15758f7ace9f.pdfIn PDF document text
    • http://files.tienyue.com/uploads/1/3/0/8/130813458/dazifenurosiwo-fagajenasaba-xapun.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/1/0432/7899/1518/files/9449704064.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/1204107997.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9154/2681/files/4988047420.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8013/9423/files/30760908185.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7659/1509/files/susuwojejizogoreni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1747/0101/files/45981353590.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vunazazaxukatokezidabu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7947/6134/files/58317720179.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7279/0427/files/kosaxogu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4607/4525/files/mogomozujeme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6607/2994/files/67311694028.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 5

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_off000054ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54EC 4860 bytes
SHA-256: 09a8c9da3dad549e03d9f699edff5400d2dbecceec4b673cd8aab83c9b553021
font_01_sfnt_off00006546.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6546 9388 bytes
SHA-256: a295a5b85d9b9b320c78812b2a494b8d5a1857b544e3bb1ffd3e9447fd00926d

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