Malicious PDF — malware analysis report

Static analysis result for SHA-256 a8c8f3015ea6909f…

MALICIOUS

PDF

359.9 KB Created: 2015-08-28 01:57:55 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 13e6b935aa47454fd9715231ee254b09 SHA-1: 5ed4dc813cd47d3a0864a193b02bfe99169af6b6 SHA-256: a8c8f3015ea6909f4db5ddbf86045f1c67b3d742db73649f72ce98b2ab3153cb
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. This indicates the document is likely part of a phishing or malware distribution campaign. The embedded URL is the primary indicator of malicious intent, suggesting the document's purpose is to redirect the user to a harmful site.

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%B4%D0%BE%D1%82%D0%B0+2+%D1%80%D0%B5%D0%BF%D0%BE%D1%80%D1%82%D0%B5%D1%80+%D0%BD%D0%B0+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%BE%D0%BC+%D0%B2%D1%81%D0%B5+%D1%81%D0%B5%D1%80%D0%B8%D0%B8&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4790/4790238_rabochaya__programma__po_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4790/4790473_tekstuy__dlya__spisuyvaniya_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4788/4788479_rokki__balboa_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00055f21.bin
bd3d0152b53420572cf6bba0bb9898bd73ae4142289db6e36e9981de0fb23440		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55F21 7576 bytes
font_01_sfnt_off00057502.bin
4835e584c51bf36ba2733fbbe043102f3f214ec089b0ea034f3879232cb41c12		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57502 13600 bytes

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