Malicious PDF — malware analysis report

Static analysis result for SHA-256 b124cfb5f1385c62…

MALICIOUS

PDF

36.4 KB Created: 2020-08-22 01:11:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d2a4dd1f389a35f324cdf36537b9ac56 SHA-1: 413794180631d05a937a231a2498de739003f294 SHA-256: b124cfb5f1385c62c7c899f5cd5ab18a4c9e4edacaaf3e14322af53d2d511c51
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, which is likely used to direct users to further malicious content. The document body, though heavily obfuscated, contains references to 'Ayuwoki game free' and the malicious URL, suggesting a lure for users seeking free game downloads. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm strategy to improve search engine visibility for malicious content.

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=ayuwoki+game+free In PDF document text
    • http://depapo.jpligallery.com/uploads/1/3/0/8/130814328/wuvabuvux.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/1/0429/4744/4903/files/vuvonarudadosig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5197/3789/files/meaning_of_economic_system.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/16949815227.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0693/4688/files/difizesigomudorisuzonigeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0092/2261/files/livodisuzap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8466/7297/files/xaxezomu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7050/2550/files/jodogivetusij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2476/1507/files/les_articles_partitifs_exercices.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4658/3970/files/1890400593.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4130/8320/files/77758937954.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7152/7325/files/psa_storyboard_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/notadenagefajofakiwu.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_off00005164.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5164 5124 bytes
SHA-256: 4f560d407202ee146fa7a5d5ac1c854fa5d4a4383426416d086a63f24836eeef
font_01_sfnt_off000062df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62DF 10084 bytes
SHA-256: 543f5829ae3921990b7d758a3e8e9b52292381e065a476a77411b5ac259c5eb5

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