Malicious PDF — malware analysis report

Static analysis result for SHA-256 bdab7c1b6500067f…

MALICIOUS

PDF

43.8 KB Created: 2020-08-30 21:39:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ba6d1c4211c4aa0b4d501295deda4c0d SHA-1: 6f1a565c5fcfa0ca6ffcf37792a2486e5844a2de SHA-256: bdab7c1b6500067fcbc121c10c0d0a164e4e5203f48c5055a731d1e13dc038a2
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. This URL is presented within the document body, disguised as a download for a game mod editor. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to Shopify domains, likely for SEO manipulation or to host further payloads. The ML classifier strongly indicates maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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.com/wix?keyword=game+dev+tycoon+ultimate+mod+editor
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mefopevepal.pdf
    • https://cdn.shopify.com/s/files/1/0432/2564/5224/files/lorojibariwij.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/90142435821.pdf
    • https://static.usrfiles.com/ugd/b8c837_06726444992e4d47ac4fef5d33b314e5.pdf
    • https://static.usrfiles.com/ugd/73f3b0_14b94d22c6f344538a0cbfc784445ac4.pdf
    • https://static.usrfiles.com/ugd/39cb9d_2ea2796a56664d86a2c054e6763348a8.pdf
    • https://static.usrfiles.com/ugd/b8c837_0992f025c53541fca04e5c472a853b50.pdf
    • https://static.usrfiles.com/ugd/a6e5e9_aa99e777e21e4014ae9f5839f3925e9c.pdf
    • https://static.usrfiles.com/ugd/b4609a_b63b6e197ed14eaca20fb9f2de5ff314.pdf
    • https://static.usrfiles.com/ugd/b8c837_916ed1355aa9479b993a4d1369c5a770.pdf
    • https://static.usrfiles.com/ugd/0d002d_2d4865f6385d4a25979734905b10d20d.pdf
    • https://static.usrfiles.com/ugd/b8c837_3ca733eb7ac848cf887eb8202189f8c1.pdf
    • https://cdn.shopify.com/s/files/1/0433/9780/8279/files/pdf_file_converter_free_online.pdf
    • https://cdn.shopify.com/s/files/1/0428/2423/7212/files/1923686479.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006a57.bin
fd6a6cfaca0cd1d2f5c8bcaef78f37c5c6e6177c3f4e8a6d0679408f00ed216f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A57 5100 bytes
font_01_sfnt_off00007bae.bin
63f5ba06b3028253e2a2280101056e8468152ac801d9723a8dbd5fb9a9f901a0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7BAE 11592 bytes

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