Malicious PDF — malware analysis report

Static analysis result for SHA-256 92a5ef2970ce1481…

MALICIOUS

PDF

33.2 KB Created: 2020-08-18 14:21:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6ee03cc77b28a73a5792ab55943d2809 SHA-1: 690fbd17aa012b640d30e04ae9aa8a28db70e27b SHA-256: 92a5ef2970ce1481b342c10946e91c2cd75bfa172c54e7f6df7ef85a3d018e78
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=metallica+enter+sandman+guitar+sheet+music'. The document body also contains this URL and a link to a Shopify domain, suggesting a lure to download further content. The presence of multiple embedded links, many pointing to Shopify, indicates a link farm strategy to obscure the malicious redirector. No scripts were extracted from this sample.

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=metallica+enter+sandman+guitar+sheet+music In PDF document text
    • http://lomomar.humanityreboxed.org/uploads/1/3/0/7/130775403/1409338.pdfIn PDF document text
    • http://files.bluffsplus.com/uploads/1/3/0/8/130814460/53b61b.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/1/0432/6745/7188/files/poledofewikatikad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7990/9028/files/43326363752.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3337/9484/files/grade_10_12_biology_textbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8959/1461/files/56980856378.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6911/0432/files/37134927317.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7913/0531/files/samsung_galaxy_ace_s5830i_bootloader.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8694/5187/files/murexirameroxosivud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5743/1199/files/ase_guidelines_regurgitation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8881/9864/files/historia_de_los_aines.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 4

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_off000042bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x42BC 5356 bytes
SHA-256: 6ee9ddee02b96573da15c108bd316ee07d2ef8391a845d399711391b2890df61
font_01_sfnt_off000054c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54C4 10504 bytes
SHA-256: a48cf436f4652a0d71a5003bf5da4817a5458f9821ad49d2f808b6a566629ed5

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