Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9a5581b53e016c8…

MALICIOUS

PDF

360.3 KB Created: 2015-08-24 01:21:45 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-10-01
MD5: 0136701d0f6c510d6a654aaf77fced74 SHA-1: dff754f40659636cbe4efb1160da8b4a2e45c3f8 SHA-256: e9a5581b53e016c83d660c78a8070f7f943bd7a6295a65ae8e2b4439d7526306
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://botcraftman.ru/?lip&keyword=%D0%B6%D1%83%D1%80%D0%BD%D0%B0%D0%BB+%D1%80%D0%B5%D0%B3%D0%B8%D1%81%D1%82%D1%80%D0%B0%D1%86%D0%B8%D0%B8+%D0%BF%D1%80%D0%BE%D0%BF%D1%83%D1%81%D0%BA%D0%BE%D0%B2+%D0%BD%D0%B0+%D0%B5%D0%B3%D1%8D&charset=utf-8 In PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693294_texet__t979hd_.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/6//4694/4694580_okruzhayuschiy__mir__3_.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/6//4694/4694213_urok__mira__1_.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000560cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x560CF 7820 bytes
SHA-256: 9fa9d0a1ecf5b76ccaa196e5f65b704573d2eb74202fa6c0181dfcaec7f9637e
font_01_sfnt_off00057789.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57789 13352 bytes
SHA-256: 179d3c2bdc3596a6943541c20a5c3a4097790cc3e63eae4d848bbf6c6d9e25dc

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