Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e2286ba96b1cc89…

MALICIOUS

PDF

348.6 KB Created: 2015-08-26 10:12:43 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: edb812f7a9d84d7a8fdd427c16cc98a0 SHA-1: 33be841dfdeea960f44d5cc4471421513805becc SHA-256: 4e2286ba96b1cc89677578979238945acf8d904181ee8838e075a7d5ec7b5f8a
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical finding for a malicious redirector link pointing to 'http://botcraftman.ru/'. The ML classifier also assigned a high probability of maliciousness. The presence of this malicious URL indicates the document's intent is to redirect the user to a compromised or malicious site, likely for further exploitation or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9943

Heuristics 3

  • 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.
  • ClamAV: Pdf.Dropper.Agent-9092294-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-9092294-0
  • 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%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B0%D0%BB%D1%8C%D0%B1%D0%BE%D0%BC+%D0%BC%D0%B0%D0%BA%D1%81+%D0%BA%D0%BE%D1%80%D0%B6+2015+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4752/4752079_kalendar__dlya__sayta_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4751/4751455_skachat__testuy__dlya_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4751/4751721_sovremennuye__notuy__dlya_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00052e6c.bin
81362ca068c3eaf4ac82937e314b4bc6d7ac53213c9c9139811cca7ce898e0d0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x52E6C 8316 bytes
font_01_sfnt_off000546ff.bin
9028a36b43123c031a94477d15bfc7a66f7784363a1b7cf9944f0984cf79e364		 pdf-font-stream PDF embedded font (sfnt) at offset 0x546FF 13676 bytes

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