Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4a8224572839760…

MALICIOUS

PDF

32.0 KB Created: 2020-08-31 11:21:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 578053e0baf7973a187037efce5ebe07 SHA-1: c3d0a66bb506d342d62ec2ad08c9db74bb905797 SHA-256: d4a82245728397606e26dc0f31ffd3bd960d73db09284a9aa7f7ed0d0a48e9bf
60 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating a malicious redirector link. The embedded URL, 'https://ttraff.com/wix?keyword=business+studies+a+level+notes+pdf+d', is the primary indicator of malicious intent. The document body, though heavily obfuscated, contains references to this URL, suggesting a social engineering lure to download further malicious content.

Heuristics 2

  • 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.
  • 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=business+studies+a+level+notes+pdf+d
    • https://static.usrfiles.com/ugd/7ea8bb_8e1c526ad7654c16b2d80eb7fec2f148.pdf
    • https://static.usrfiles.com/ugd/0fdb6d_b6380f2b63eb48dd80e5bf566dca3f78.pdf
    • https://static.usrfiles.com/ugd/33c377_45cd7676f5454279b1bac38cdbcd2cfa.pdf
    • https://cdn.shopify.com/s/files/1/0431/4054/6714/files/70500979863.pdf
    • https://static.usrfiles.com/ugd/b8c837_7126a32b991b40a094026de72dcea7e8.pdf
    • https://static.usrfiles.com/ugd/b0b521_d92c2b2be08c43f0872e296de33f7f73.pdf
    • https://cdn.shopify.com/s/files/1/0429/5114/7676/files/moriba.pdf
    • https://cdn.shopify.com/s/files/1/0428/4314/4355/files/53463596718.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/89573664631.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_off00003e66.bin
fbcaddbb7c3cad5fafa8d616c138c2afe7888974c1449ee746f35967039a2421		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3E66 5048 bytes
font_01_sfnt_off00004fb0.bin
eb17941193930d81445f180a1c304a89dd21f08e58580ba0e1fc7d9e0020fefd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4FB0 10092 bytes

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