Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab4b29465fa008af…

MALICIOUS

PDF

354.3 KB Created: 2015-08-26 09:52:59 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 23d3b53c4fa5140fa71042f4176a417c SHA-1: cdeebd8bb99e8681db38940288a3ea05e1421733 SHA-256: ab4b29465fa008afff6718107ebc6be5f32c356473736663a25417dc49c4d369
92 Risk Score

Malware Insights

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

The PDF contains a link that redirects to known malicious infrastructure, disguised as a Minecraft download. The ML classifier also flagged this PDF as malicious. The embedded URL is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9897

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=minecraft+095+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BD%D0%B0+%D0%B0%D0%BD%D0%B4%D1%80%D0%BE%D0%B8%D0%B4&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4751/4751923_kulturologiya__uchebnik__dlya_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4751/4751627_dario__salas__sommyer_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4751/4751538_skachat__igru__petka_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000540a3.bin
09f42b0b8844482808bcf19992fca818d56984afefaf3afee50572f48d41b1b8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x540A3 9660 bytes
font_01_sfnt_off00055b6c.bin
296cdc6980dcde0f9059ddacd16a57ff1cc94aef8c3de9b21982543281f1a1f9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55B6C 15072 bytes

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