Malicious PDF — malware analysis report

Static analysis result for SHA-256 55eb5bd7cc990551…

MALICIOUS

PDF

362.9 KB Created: 2015-08-24 00:35:59 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 3868303e81a62f40255693556efa064a SHA-1: 79055e2845c348198b7dda055fb63877f56e77b4 SHA-256: 55eb5bd7cc99055164a674dd2ab55708688fb1b9868d26b3bea5ef4252d4bfb1
90 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, indicating a phishing or malware delivery attempt. The ML classifier also strongly flagged this PDF as malicious. The embedded URL is the primary indicator of compromise, likely leading to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

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=%D1%81%D0%B2%D0%B5%D0%B4%D0%B5%D0%BD%D0%B8%D1%8F+%D0%BE+%D1%85%D0%B0%D1%80%D0%B0%D0%BA%D1%82%D0%B5%D1%80%D0%B5+%D0%B8+%D1%83%D1%81%D0%BB%D0%BE%D0%B2%D0%B8%D1%8F%D1%85+%D1%82%D1%80%D1%83%D0%B4%D0%B0+%D1%80%D0%B0%D0%B1%D0%BE%D1%82%D0%BD%D0%B8%D0%BA%D0%B0+%D0%BD%D0%B0%D0%BF%D1%80%D0%B0%D0%B2%D0%BB%D1%8F%D0%B5%D0%BC%D0%BE%D0%B3%D0%BE+%D0%BD%D0%B0+%D0%9C%D0%A1%D0%AD%D0%9A&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693255_kratkoe__soderzhanie__buylinuy_.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4694/4694403_total__war__shogun_.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693592_driverpack__solution__14_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000559b3.bin
7d1aeac386973a091235f99adb21533a9bf7a03c7cd3afff4800ff11d57e20e6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x559B3 9688 bytes
font_01_sfnt_off0005752a.bin
308d5b0e5e1edb5bd6292c491201e10d3f6466d8288b82859ea6611ec0346b18		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5752A 18028 bytes

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