Malicious PDF — malware analysis report

Static analysis result for SHA-256 6cbe46a122f9f76b…

MALICIOUS

PDF

43.4 KB Created: 2020-08-06 05:15:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 10d932f8dd5e0933d56785e163ccf20b SHA-1: e1442929d2fd64680def8cac329dd6fcb6940e86 SHA-256: 6cbe46a122f9f76be0351757f95d056f2b6661368e2a2d0ade21f6ce5b548194
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to appear as sheet music, but the primary link redirects to a known malicious redirector. This indicates a phishing or scam attempt, likely using the document as a lure to drive traffic to malicious infrastructure. The ML classifier strongly supports the malicious verdict.

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=speak+softly+love+violin+sheet+music+pdf In PDF document text
    • http://mokojuk.but-design.com/uploads/1/3/0/7/130775195/120454.pdfIn PDF document text
    • http://files.bluecrushvolleyballclub.com/uploads/1/3/1/4/131453100/dokugaboruluz_runizarijuxekuk_funakelenev_loweti.pdfIn PDF document text
    • http://files.langleycarpetcleaner.com/uploads/1/3/0/8/130874139/cbeac60.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/1/0436/3429/4937/files/xowukunijegepus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lugapib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5677/5839/files/zufepunisovubogiturojus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5949/4555/files/87903045080.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1502/0448/files/jevaforizabelaxuviva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3199/4280/files/nelute.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7995/8679/files/74729840722.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3881/8982/files/38954284697.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4149/6986/files/23923967134.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7194/6398/files/6806124115.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2756/8552/files/1334819621.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 1

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_off00006c3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C3B 5628 bytes
SHA-256: 0a729fbc82e624aa1bbf11c745a8fe2816faaf2ceaffcf757cf3570ab6324eb5
font_01_sfnt_off00007f4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F4F 9872 bytes
SHA-256: 79eb133ea3bac624840a08d7a69eb829bc0ed9aec93eeb4fe43b1a14333566b2

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