Malicious PDF — malware analysis report

Static analysis result for SHA-256 5433634b0ed56837…

MALICIOUS

PDF

363.0 KB Created: 2015-08-27 10:19:58 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 2b6efdb19c3f5095330f51b58744ff93 SHA-1: 23488e994660008954fd675ba03d996aeb841514 SHA-256: 5433634b0ed5683717775df7eaed277ec708536ce6fde68fdfe1792219bd8586
92 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a direct link to a known malicious redirector. The presence of this link strongly suggests the document is designed to lure users to a malicious website. No scripts were extracted from this sample.

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=%D0%BF%D1%80%D0%BE%D1%85%D0%BE%D0%B6%D0%B4%D0%B5%D0%BD%D0%B8%D0%B5+%D0%B8%D0%B3%D1%80%D1%8B+%D0%BD%D0%B5%D0%BD%D1%81%D0%B8+%D0%B4%D1%80%D1%8E+%D0%BF%D1%80%D0%BE%D0%BA%D0%BB%D1%8F%D1%82%D1%8C%D0%B5+%D1%81%D1%82%D0%B0%D1%80%D0%BE%D0%B3%D0%BE+%D0%B7%D0%B0%D0%BC%D0%BA%D0%B0&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4771/4771952_skachat__zhurnaluy__radio_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4772/4772152_server__terminalov__na_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4772/4772642_goulmon__leviafan__skachat_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000567d3.bin
29d703b013a44cdd6b94786c734f56257d3e0c99ca9e55d6582dbaa4e56f1acc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x567D3 8668 bytes
font_01_sfnt_off00058119.bin
00c731a7dc76557e9374c4c0e137bc5a4aa5480290e5073ee5d7a9a32c887afa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58119 13960 bytes

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