Malicious PDF — malware analysis report

Static analysis result for SHA-256 fee64e116bd28b51…

MALICIOUS

PDF

371.2 KB Created: 2015-08-25 02:07:11 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 5fb0ac7dfddbbfe270a3ee7fcff9d0d6 SHA-1: b1325ed6c3f179e526b280408aeffe677e9cde50 SHA-256: fee64e116bd28b515b9f99051cbb35e9769394e5c98539a8dbe6fccef4c8aa30
68 Risk Score

Malware Insights

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

The PDF file contains an embedded JavaScript stream and a critical heuristic firing for a malicious redirector link. The redirector URL, http://botcraftman.ru/, is likely used to direct users to a malicious website. The presence of embedded JavaScript suggests an attempt to execute further malicious code upon opening the PDF. The document body is heavily obfuscated and unreadable.

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=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%81%D0%B0%D0%BC%D1%8B%D0%B9+%D0%BF%D1%80%D0%BE%D1%81%D1%82%D0%BE%D0%B9+%D0%B0%D0%B2%D1%82%D0%BE%D0%BA%D0%BB%D0%B8%D0%BA%D0%B5%D1%80&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/6//4715/4715640_nokia_.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4705/4705754_skachat__igru__smeshariki_.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4694/4694879_skachat__foto__obuychnuyh_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00058a1a.bin
5f83570e5451d77852e0493fb3fe7e035d0f054cb594d1ec10e4206ef1fc1300		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58A1A 7700 bytes
font_01_sfnt_off0005a000.bin
43a147bf76d5cffaacae33eed75e1baf5f85bf093ae831608fe44785f6649346		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A000 14592 bytes

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