Malicious PDF — malware analysis report

Static analysis result for SHA-256 9faf2b38124ac233…

MALICIOUS

PDF

369.5 KB Created: 2015-08-23 21:35:10 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 65f9c84b52a531d87a43ff3486e2ab4e SHA-1: 2a11cc2adfee2c61bc6c0ea67ce5af2886fb2edb SHA-256: 9faf2b38124ac233eb2b498ff9bb869106edc696590b8263018c3ed6c7cef4b3
68 Risk Score

Malware Insights

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

The PDF file contains an embedded JavaScript stream and a critical heuristic firing for a PDF malicious redirector link. The redirector URL, http://botcraftman.ru/, is associated with malicious activity and is presented as a download for DirectX, a common lure. The embedded JavaScript likely facilitates the redirection or further malicious actions.

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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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=directx+112+%D0%B4%D0%BB%D1%8F+windows+81+x64+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%81+%D0%BE%D1%84%D0%B8%D1%86%D0%B8%D0%B0%D0%BB%D1%8C%D0%BD%D0%BE%D0%B3%D0%BE+%D1%81%D0%B0%D0%B9%D1%82%D0%B0&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4690/4690468_zd__simulator_.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4690/4690120_posledniy__boy__mayora_.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4690/4690653_notuy__dlya_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00057a52.bin
6041649faa4f5df240f19eda537561401cba342fe1c32eec2c4692fee91f0740		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57A52 10508 bytes
font_01_sfnt_off00059712.bin
39f3ef00d3494a12ed3580654c73031792ee186d1bb388e11fc2f507ba5b865d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59712 15216 bytes

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