Malicious PDF — malware analysis report

Static analysis result for SHA-256 94d9b5ef22cfbd00…

MALICIOUS

PDF

355.8 KB Created: 2015-08-24 00:45:57 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 1d6fe401b9ee946529fe0ce7f1ea2278 SHA-1: 86743ff26f1c05002bbb919cbc9ee77c837785c7 SHA-256: 94d9b5ef22cfbd002b094128bef4539dbebd1a31bcf3595adb1d3b8904542774
90 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 link to a known malicious redirector. The redirector URL is http://botcraftman.ru/?lip&keyword=%D1%8D%D1%80%D0%BE%D1%82%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%B8%D0%B5+%D0%BC%D0%BE%D0%B4%D1%8B+%D0%BD%D0%B0+%D1%81%D0%BA%D0%B0%D0%B9%D1%80%D0%B8%D0%BC&charset=utf-8. This suggests the document is designed to lure users to a malicious website, likely for phishing or malware distribution.

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=%D1%8D%D1%80%D0%BE%D1%82%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%B8%D0%B5+%D0%BC%D0%BE%D0%B4%D1%8B+%D0%BD%D0%B0+%D1%81%D0%BA%D0%B0%D0%B9%D1%80%D0%B8%D0%BC&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693514_skachat__maynkraft__145_.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693894_skachat__drayver__mrt_.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693498_reshenie__egye__po_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00054db7.bin
31754c140f697316878ceb61df9f0d9233d5d74798e43e498fd2e495f8fb0782		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54DB7 8204 bytes
font_01_sfnt_off00056572.bin
abde231a75404744e7cb124c9928de04f7208fa00374c440c5955e8a50e41e1c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56572 13068 bytes

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