Malicious PDF — malware analysis report

Static analysis result for SHA-256 5dcd0c8b47d3b6e5…

MALICIOUS

PDF

43.1 KB Created: 2020-07-27 09:27:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 85d30fd12157c8af3a5694c0d6092011 SHA-1: 8a9b42cdc0693a94b8885c850b9e2d3b22142844 SHA-256: 5dcd0c8b47d3b6e5399eb38e204e34039589550b6a63ba33a7ea68c7a745fa85
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a malicious URL, masquerading as a free download for a popular song's piano sheet. This is a common phishing lure to trick users into visiting potentially harmful websites. The ML classifier strongly indicates maliciousness, and the embedded link is a critical finding.

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=adele+hello+piano+sheet+easy In PDF document text
    • http://files.edonfitness.com/uploads/1/3/1/4/131452735/5204290.pdfIn PDF document text
    • http://files.threesheetsyachtrock.com/uploads/1/3/1/4/131453048/79943380.pdfIn PDF document text
    • http://files.brettstotalstumpgrinding.com/uploads/1/3/1/0/131070246/8d982602.pdfIn PDF document text
    • http://files.twistssponge.com/uploads/1/3/1/4/131453333/jufula.pdfIn PDF document text
    • http://files.dianakemp.com.au/uploads/1/3/1/8/131856703/8545444.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/1/0431/6954/6395/files/resij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0195/3952/files/nafizigozunulunevem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wexidemunuviviradepinitim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7920/5031/files/lupiwotugewiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2493/3283/files/deluzuxulevexurudubot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3913/5643/files/77790347237.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1574/9281/files/rejenitepilo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3135/5807/files/34057029671.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2143/4005/files/39499292610.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1605/2123/files/25486054687.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8375/1831/files/welabonik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6457/3593/files/66705232040.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_off00005ce6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CE6 4828 bytes
SHA-256: 4e60717d12cc0cbd7540f7f0c5ae7800d8417bda37ceb7ca18948a5e7cda0cb4
font_01_sfnt_off00006d45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D45 15112 bytes
SHA-256: d19af741c352279286d9ff4ffb04e83102615c1ec638c18558cf4832f03a9ca4

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