Malicious PDF — malware analysis report

Static analysis result for SHA-256 96c0925e6c762b2e…

MALICIOUS

PDF

35.3 KB Created: 2020-08-31 10:04:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4a0fedd34c1d5e264f50cb4d6c590e6f SHA-1: d3576a965fdbc1d4c67d4b9a76f805af652edc55 SHA-256: 96c0925e6c762b2e814f336799514a7548ba11493d6e37aa2326fba9fb49c9b8
60 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/wix?keyword=unit+3+resource+book+mcdougal+littel'. The document body, though heavily obfuscated, also contains this URL, suggesting a social engineering lure to trick users into visiting a malicious site. No scripts were extracted from this sample.

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.ru/wix?keyword=unit+3+resource+book+mcdougal+littel
    • https://static.usrfiles.com/ugd/b8c837_ad319baeaa3f4a14b46fe1e02621a7ea.pdf
    • https://static.usrfiles.com/ugd/078c79_aa15641aceff4457abfb0785b0c38e7b.pdf
    • https://static.usrfiles.com/ugd/71fd01_e4724c971f7d40caae4b419cc96e0bc3.pdf
    • https://static.usrfiles.com/ugd/b8c837_9f8ed2b1abe54ebb89ad6e7405b5138e.pdf
    • https://cdn.shopify.com/s/files/1/0435/1783/7472/files/vakasewogetumefezidow.pdf
    • https://cdn.shopify.com/s/files/1/0436/0683/5358/files/subuxiwefipumumupatud.pdf
    • https://cdn.shopify.com/s/files/1/0431/8494/7357/files/garijifegukevoki.pdf
    • https://cdn.shopify.com/s/files/1/0438/4030/7362/files/timuroka.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_off00004c41.bin
b41648f9b0b89f041d39dfb4b1bb1ce6e380d540bc8ae060ac8f937d5a50ef4a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4C41 5616 bytes
font_01_sfnt_off00005f3d.bin
3f92b2c0e5d5a77f289fc33611f793dab841e656a46274bed8f80b8693864bdf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F3D 9744 bytes

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