Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8e8d3d637beb516…

MALICIOUS

PDF

35.5 KB Created: 2020-08-21 10:33:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 595ae73519cbb45431d25a9b3489c0b1 SHA-1: b9689459eb2278a4d4f3333e422c5ad9eaf014ae SHA-256: e8e8d3d637beb51613c36fce1fced52e65fd0e62024aab280a9f087bdd4eaa2c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a large number of embedded links, many of which point to Shopify domains, but one critical link redirects to `ttraff.ru`, known malicious infrastructure. The document body, though heavily obfuscated, contains text related to sheet music and the malicious URL. This suggests a lure to trick users into visiting a malicious site, likely for further exploitation or credential harvesting.

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.ru/pify?keyword=chaconne+bach+sheet+music+violin In PDF document text
    • http://files.emmertstheatre.com/uploads/1/3/2/6/132681308/wesed.pdfIn PDF document text
    • http://sefomas.str8coastin.com/uploads/1/3/1/3/131398444/0090578b.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/1/0431/2891/4074/files/modewamifiju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1338/1028/files/43428062663.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9503/8877/files/daruzatipugazan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1992/6679/files/10663250483.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3050/3843/files/kisofupebesalosasa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1173/3664/files/medical_terminology_quiz_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/8187/8942/files/32466036769.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2834/8056/files/warobigogi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2440/1063/files/6086364932.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7985/0391/files/43274509477.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0568/8483/files/nipirurodikexe.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_off00004e02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E02 5048 bytes
SHA-256: cf5a0f17f9b1523cae4daf75112d4abd7c56b687860d88b838780a830f60492a
font_01_sfnt_off00005f04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F04 9952 bytes
SHA-256: a19c471063cc72ebf0b397127e17efbc3642186441333c926ab173733863e7cb

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