Malicious PDF — malware analysis report

Static analysis result for SHA-256 776daaf2c3a7a4cf…

MALICIOUS

PDF

47.2 KB Created: 2020-09-16 19:20:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6a69e028b99b49bdb12cfca99ca57377 SHA-1: 62c7ae24bc3640a967d0320ee8677c44de136418 SHA-256: 776daaf2c3a7a4cf8d2f0eb76cc746756b3ed45ca99fd9e1f84ac744e3ffe791
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic identifying a redirector link to 'ttraff.me'. This suggests the document is designed to redirect users to malicious infrastructure, likely for phishing or malware distribution. The presence of a link farm further supports this, aiming to increase visibility and clicks. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

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.me/wix?keyword=stryfe+marvel+legends In PDF document text
    • http://files.blueridgetu.org/uploads/1/3/0/7/130776763/4507603.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/1/0438/1822/1728/files/demamepusodakusazizup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5590/6967/files/makuxidu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4764/8412/files/xiwupadodajosatateketaxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8977/2187/files/pdf_to_excel_vba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7400/9753/files/lokafapuxilowuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3564/8409/files/wings_of_fire_bengali_version.pdfIn PDF document text
    • https://3b1e6c04-7fe6-4871-ba8b-c96d3c0c4bb9.filesusr.com/ugd/2813e2_be26c7cc29c3482c91da90fafe1028c2.pdf?index=trueIn PDF document text
    • https://1919e77d-ac4e-4d95-9b83-b78ef7934fe2.filesusr.com/ugd/143c98_cd2c082391074f73bf9a5005707e5a97.pdf?index=trueIn PDF document text
    • https://a6e6d7ee-c05e-466b-8b18-7ea24baad5d2.filesusr.com/ugd/3f2390_9e34efe1a7e44d27a5316e28acd5261c.pdf?index=trueIn PDF document text
    • https://7e8e1158-418a-43d7-a159-073f63f89a3c.filesusr.com/ugd/26481d_f948e5949e05452e9d73e4e085ba495f.pdf?index=trueIn PDF document text
    • https://a784d1b3-3aa4-4fe8-8b2d-7a0ebf7a3269.filesusr.com/ugd/4a2613_6a24e6cd28584d0f90b236389d351bcc.pdf?index=trueIn 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_off00007a1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A1D 5492 bytes
SHA-256: 4785a5dc0fc5f2c2794afdf10e2b6b3e34a1ae360128ecd5a6c3211f8b0ebc98
font_01_sfnt_off00008cc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CC2 10308 bytes
SHA-256: 5b2780733732bb14158596da8d72ece77c842cb27cc99c05a57d736eeecf8192

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