Malicious PDF — malware analysis report

Static analysis result for SHA-256 13ee66470c38c889…

MALICIOUS

PDF

39.9 KB Created: 2020-08-10 19:04:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c1ca5e993e1fba2425006b0601f50034 SHA-1: 6ec87771e95ed96fc7607aca903822629a6f8f10 SHA-256: 13ee66470c38c889c12e4bf969a3eb1fdd3ca2a60113195d5eae7dff84a54ff7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous links designed to appear as free sheet music, but they redirect to malicious infrastructure. The primary redirector URL is https://ttraff.cc/pify?keyword=easy+blues+piano+sheet+music+free+pdf, which is flagged as malicious. The document's structure suggests a link farm intended to drive traffic to potentially harmful sites, likely for phishing or malware distribution.

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=easy+blues+piano+sheet+music+free+pdf In PDF document text
    • http://files.gatewaychristiancoop.com/uploads/1/3/0/7/130739564/32d28ec1beb.pdfIn PDF document text
    • http://files.alanissophia.com/uploads/1/3/1/0/131070450/jorun-wegubexirigeve-limizibepudi-makov.pdfIn PDF document text
    • http://kuvomobog.srinagarhotel.net/uploads/1/3/1/3/131379578/8691534.pdfIn PDF document text
    • http://files.maristrugby.com.au/uploads/1/3/0/7/130776041/5338555.pdfIn PDF document text
    • http://files.oregonsummerclassic.com/uploads/1/3/1/6/131606349/gixoxid-wasad.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/1/0430/9752/2329/files/23717913111.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0778/6654/files/katagabejedubidosowawob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9280/3744/files/types_of_spelling_errors.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4396/3548/files/popusamojojakal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/16494210232.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5612/8412/files/55805656125.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4251/2791/files/trigonometry_and_analytic_geometry_textbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6628/6490/files/aircraft_maintenance_technician_handbook_general.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7105/2707/files/wanugokawodaja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8438/9275/files/40975430690.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3641/5899/files/dotuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6861/1989/files/xobatiroremomarasupemowom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8976/5276/files/82245539085.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_off000051fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51FD 5596 bytes
SHA-256: 17ea688878bf2b1bd56d717d0c3595ffa0948f9b7f7382f2cc104a8de6438fa8
font_01_sfnt_off000064d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64D1 14512 bytes
SHA-256: 4f89eb4669e14d9f68b6bda7dab0b5a0af1409693c0bbb0c6949c522b6397a4b

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