Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d8734b7eee8b2fb…

MALICIOUS

PDF

38.9 KB Created: 2020-08-04 18:54:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7c33071cccb3541fa9f256675ae4c07b SHA-1: a3e76f5981779454d7d9bfc504327b78d5fbbfd6 SHA-256: 7d8734b7eee8b2fbe14434d58ce5d8856b8ac270b8e76d876296452abf4334d1
194 Risk Score

Malware Insights

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

This PDF file contains multiple embedded links designed to redirect users to malicious infrastructure, masquerading as a free download. The primary redirector URL is ttraff.cc, which is flagged as malicious. The document body, though heavily obfuscated, contains references to the redirector and other URLs, suggesting a phishing or scam attempt.

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=basic+english+grammar+book+3+pdf In PDF document text
    • http://files.globaluplift.com/uploads/1/3/1/4/131437330/a92e724.pdfIn PDF document text
    • http://pebedoro.burbgarden.com/uploads/1/3/1/3/131379706/5105012.pdfIn PDF document text
    • http://files.birthblissdoulacourses.co.uk/uploads/1/3/0/9/130969801/dojikoboguv.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3110/9540/files/buxomejatomifugojo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/67331216746.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5874/8837/files/89446439767.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7723/7913/files/22000401488.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2351/5294/files/78060304737.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0070/9791/files/pixalarakoxabufage.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3699/0885/files/xojijefavufubaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7048/8730/files/14183935218.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6360/7445/files/86312409287.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 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004817.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4817 5692 bytes
SHA-256: bacf97fa6b37908e885bef9a7df5b7ec135eafbcffe9fb647d506e197ef01d3b
font_01_sfnt_off00005b28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B28 11164 bytes
SHA-256: ab6fd6630b21360f0285b1b41babac1bcd87d9da32b422f0cd0640be35af0fff
font_02_sfnt_off000080ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80AE 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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