Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c466491c7a524e4…

MALICIOUS

PDF

98.4 KB Created: 2020-09-16 02:43:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e74309764edb9d4ffc03744726d322b1 SHA-1: 2023f7aef35eedf5e018ac585a71a0dee25beace SHA-256: 5c466491c7a524e47c0f5b0aec62775b610470d0187faf3816c2b90225347d8f
194 Risk Score

Malware Insights

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

The PDF contains multiple links to SEO redirector infrastructure, specifically pointing to 'ttraff.club', which is flagged as malicious. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector. This suggests the primary purpose is to redirect users to malicious sites, likely for phishing or further malware delivery. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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=larry+pv+riles In PDF document text
    • http://files.sueannecelebrant.com/uploads/1/3/1/4/131437351/26ff42c.pdfIn PDF document text
    • http://jobenip.thetailgatist.com/uploads/1/3/1/0/131071157/2516806.pdfIn PDF document text
    • http://porezoma.narrowgategraphics.com/uploads/1/3/2/7/132740185/gewuxalevutore_wukip_vesugasiba_jevadabo.pdfIn PDF document text
    • http://files.leahbealdesign.com/uploads/1/3/2/6/132695535/3659919.pdfIn PDF document text
    • http://jivolizo.sosquaredaway.com/uploads/1/3/0/8/130814229/b957efb.pdfIn PDF document text
    • http://files.aardehondborderterriers.com/uploads/1/3/1/6/131607374/2673713.pdfIn PDF document text
    • http://nepebesu.jackiecheuvront.com/uploads/1/3/1/4/131437615/4268760.pdfIn PDF document text
    • http://kesosufev.faithcomethbyhearing.net/uploads/1/3/2/3/132302855/zixaliwemime-sewijikiw-koxajaxuw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2642/3701/files/gavalolagi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9380/2646/files/97539556882.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5956/9055/files/boaters_licence_study_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2786/4471/files/gadidotu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1135/8372/files/gazelaku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7665/7051/files/48475406174.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001393c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1393C 4408 bytes
SHA-256: 940f7000454f433d89489abe4ac082dc7273b693d3ff01d16c345159e9e07288
font_01_sfnt_off00014845.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14845 12004 bytes
SHA-256: 0223286adbf6ca33cb8224ace2a0ea4ea67b172e336cf7667d85e933e5347bd6
font_02_sfnt_off00016e8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16E8E 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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