Malicious PDF — malware analysis report

Static analysis result for SHA-256 eaaa63f4ef5c0a15…

MALICIOUS

PDF

42.1 KB Created: 2020-08-12 03:30:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9ee879e7d57422927cf13259ec3a9034 SHA-1: 496bcf83dd9e66a78a739b3afbfa631b06b00174 SHA-256: eaaa63f4ef5c0a15ff2a1baf256f7f29937fd3dda5f7db3b146e7f74d512cc09
194 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as sheet music. The ML classifier strongly indicates maliciousness. The primary IOC is the redirector URL, which is designed to lead users to further malicious content.

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=bwv+974+sheet+music+pdf In PDF document text
    • http://files.shearserenitysalon.net/uploads/1/3/1/3/131379759/8772874.pdfIn PDF document text
    • http://files.miniopener.com/uploads/1/3/1/3/131380547/7519516.pdfIn PDF document text
    • http://files.armenianstudentconvention.ca/uploads/1/3/0/8/130874189/7463231.pdfIn PDF document text
    • http://files.istroumahigh.org/uploads/1/3/1/3/131382239/747046.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/1/0433/4590/3781/files/roruxakuzoxukikiwisidosu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0668/0484/files/61063315492.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8362/0767/files/merrill_lynch_research.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3217/5014/files/bypass_gstrico_en_y_de_roux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0638/5576/files/autocad_exportar_3d.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/3365514284.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7030/7995/files/34499314056.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6761/3082/files/25263631550.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6901/3157/files/pazazebivatulawe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0106/9220/files/jaxunu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4655/2227/files/18650430856.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 4

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_off00005066.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5066 5584 bytes
SHA-256: 9934be0d4c0a6c23cd99c2149f2c9dd6f89f39513ff9b1922f7883876b1cbe09
font_01_sfnt_off00006372.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6372 10096 bytes
SHA-256: f66befb70139dbf70c68f79e46c59ae0a12d1f824b7e704fbf9ad2b20cb1aa72
font_02_sfnt_off00008633.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8633 16164 bytes
SHA-256: b2ca9dfbe8f46023a3a9e333741d05f311bccdfc9b8d5eafbc10be52c56fc21c

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