Malicious PDF — malware analysis report

Static analysis result for SHA-256 d80efe820db97eb9…

MALICIOUS

PDF

351.0 KB Created: 2015-08-26 10:11:37 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: dec6755c5e3ce7e0291dbedda0ebf7e5 SHA-1: 9ae9bbdaba9b900f59097ff486fab3ebb22ee65d SHA-256: d80efe820db97eb9cb7397c8434d720f3dd86042008dd74b351d867d98eac2b4
92 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL, http://botcraftman.ru/..., is the primary indicator of compromise. No scripts were extracted, and the document body was unreadable, but the presence of the malicious link strongly suggests a phishing or malware delivery attempt.

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%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D1%8B+%D0%B4%D0%BB%D1%8F+%D1%80%D0%B0%D1%81%D0%BA%D1%80%D1%83%D1%82%D0%BA%D0%B8+%D0%B3%D1%80%D1%83%D0%BF%D0%BF+%D0%B2+%D0%BA%D0%BE%D0%BD%D1%82%D0%B0%D0%BA%D1%82%D0%B5&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4751/4751678_forma__adv65__za_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4752/4752110_konsultant__plyus__skachat_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4752/4752298_bayonetta__pc__skachat_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00053851.bin
bc305052c2875fdf1389748babcd14e5ec1e6a3cf604505c9df3cd525677a410		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53851 7988 bytes
font_01_sfnt_off00054f24.bin
3b496d9166a61b08eb290680237b0f13ec382884c30fbf6801d596ac775f3ce6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54F24 15244 bytes

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