Malicious PDF — malware analysis report

Static analysis result for SHA-256 d776adde17a3d59a…

MALICIOUS

PDF

48.3 KB Created: 2020-08-29 22:19:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3624bc99668196d577df2a69d23eac47 SHA-1: 313a95befffdc5a46c4d701593fd7a365c11ea27 SHA-256: d776adde17a3d59ae2bca057e084b9e7ef0b12fa47e0110c315a351367689bfa
234 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/wix?keyword=blood+circulator+ost+naruto+mp3'. Additionally, it exhibits characteristics of a browser extension or update lure, instructing the user to install something to view content. The document body, though heavily obfuscated, also contains the same malicious URL and numerous other PDF links hosted on Shopify, suggesting a link farm for SEO manipulation or distribution. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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/wix?keyword=blood+circulator+ost+naruto+mp3 In 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/1/0432/4166/8772/files/greeley_weather_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4016/9374/files/balanceamento_qumico.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7795/0881/files/nakud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7846/7238/files/19284245085.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3431/1845/files/meravufukodudawiza.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_74d49489ccae40119cda99f384d04bb7.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_de3c9db0f874497da0122ed0da29be62.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/8b2c09_9b5ebfec44464f8e83e6af5a833fd91e.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_6109d0da593947988d5a3197125eb307.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_1f2326bf082a4b47879fbc8d03a44528.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/5b9365_dc952652aca848a8957f7f20a16d24a5.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_f1e65132d22e40e49b5d033b17b4eb19.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_7da82f6427a9455cb57451b4981f93d3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2395/6125/files/57801852123.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1987/7024/files/wokulevijuremazufexafidax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4999/2860/files/konejuwevekukawurolobi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7285/5957/files/pigagidusirakeda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8638/0189/files/nurigirobifos.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000053cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53CF 4648 bytes
SHA-256: f2cbb7961e2cb1b42a461f6bfda6d8645deaf1fd295b28e60056b9d8dc1d3a0a
font_01_sfnt_off0000640b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x640B 5432 bytes
SHA-256: 20140ea147a1785db97a44c04841d6806c7b8b5df3d2f719b023eabf596437a9
font_02_sfnt_off0000765f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x765F 1800 bytes
SHA-256: e9a5a1f6ed95b1e3669933bb00002ad32a1708c3e0b735191cad5e02368a6c7d
font_03_sfnt_off00007eed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EED 18696 bytes
SHA-256: 70bfd7dfb06083d78b057a720380b6bf9012bf6ecb449c5d89cacaee5242f602

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