Malicious PDF — malware analysis report

Static analysis result for SHA-256 5383578ae4bb8c72…

MALICIOUS

PDF

35.2 KB Created: 2020-08-13 22:51:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ea96cf1b4e36f851aaf997d55bfd5f45 SHA-1: 6301e69d84f6e5f5384433ea592400861b5cf378 SHA-256: 5383578ae4bb8c726f9dfba1da3e9b8fb7f5370d4fa1fd9ae2425dbb0a29e11d
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 a "Pirates of the Caribbean piano sheet pdf" to lure users. The PDF also hosts a large number of external links, many pointing to Shopify domains, suggesting a link farm for SEO manipulation or to obscure the primary malicious destination. The ML classifier strongly indicated maliciousness.

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=pirates+of+the+caribbean+piano+sheet+pdf In PDF document text
    • http://files.riceisfordinner.com/uploads/1/3/1/3/131383772/211ef24.pdfIn PDF document text
    • http://files.worthingexcelsior.co.uk/uploads/1/3/1/3/131380915/79f3e.pdfIn PDF document text
    • http://files.fernandojimenezphoto.com/uploads/1/3/1/6/131637108/lepemusisariraw.pdfIn PDF document text
    • http://files.mulberrywaldorfschool.com/uploads/1/3/0/7/130776200/4128443.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/1/0436/2849/5001/files/77772873216.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7637/1110/files/87689859030.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lavatorumagenikezelun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7973/6223/files/vajunadiwatulatifewape.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7134/7619/files/baba_balak_nath_chalisa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9521/2697/files/vibajugexewas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1382/3909/files/diagramme_de_phase.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2771/8567/files/50447822479.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9868/6111/files/bibexuvetoru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1418/3323/files/tapeju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4138/0759/files/burger_king_menu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4885/2891/files/98125666863.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4480/5525/files/2330742192.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5042/5750/files/68116030372.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004930.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4930 5352 bytes
SHA-256: 5f090133028420edbd15d7c38154d1e54df2f6f7f7c6e430839653e37a1c18e6
font_01_sfnt_off00005b49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B49 10048 bytes
SHA-256: 9c085a40d6520765e12f76027d4e6c83f1d7aef7ded7d7a5806f41a03f320b0d

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