Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa2e33cd6889fed9…

MALICIOUS

PDF

357.3 KB Created: 2015-08-28 01:26:19 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: c7d4387a0355a9330173b1519ff541c9 SHA-1: c251aa6056c98421be0ac8315e06bca23464a740 SHA-256: fa2e33cd6889fed9937ad38b058e1051facb35c8f1cfe6f94f7529553ceec425
90 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating a link to known malicious redirector infrastructure. The ML classifier also flagged the PDF with high confidence. The embedded URL 'http://botcraftman.ru/?lip&keyword=mount+and+blade+warband+%D0%B3%D0%B0%D0%B9%D0%B4&charset=utf-8' is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site. No scripts were extracted from this sample.

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=mount+and+blade+warband+%D0%B3%D0%B0%D0%B9%D0%B4&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4789/4789673_yoga__vasishtha__skachat_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4789/4789952_kak__privyazat__povodok_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4789/4789987_skachat__spavner__dlya_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00054cee.bin
2b5a9a034b056ede28940e6da4b89a6131a2596d0cf88f5cafda4ad00e616616		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54CEE 9604 bytes
font_01_sfnt_off00056753.bin
7f8bc5f812ca6c31e6a6ccebb75e619d4223cd61e717afa1f82612c8226ea539		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56753 15124 bytes

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