Malicious PDF — malware analysis report

Static analysis result for SHA-256 ecce9c990e1d9442…

MALICIOUS

PDF

354.6 KB Created: 2015-08-28 00:10:21 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 082e674ac72c76c0b9b083428b89e24e SHA-1: d42fde1a8fbc4331c0ecad0a2b12d2162d0a0964 SHA-256: ecce9c990e1d944276d9a8f03f8198716a11dd22e092ec493ad382295c6fa6b7
90 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector. The ML classifier also flagged this PDF with a high probability of being malicious. The embedded URL likely serves as a lure to download further malware or phish for credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9800

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=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B0%D0%BD%D1%82%D0%B8%D0%B2%D0%B8%D1%80%D1%83%D1%81+%D0%BA%D0%B0%D1%81%D0%BF%D0%B5%D1%80%D1%81%D0%BA%D0%BE%D0%B3%D0%BE+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%D0%BD%D0%B0+6+%D0%BC%D0%B5%D1%81%D1%8F%D1%86%D0%B5%D0%B2+%D0%B1%D0%B5%D0%B7+%D1%80%D0%B5%D0%B3%D0%B8%D1%81%D1%82%D1%80%D0%B0%D1%86%D0%B8%D0%B8&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4788/4788217_dogovor__kupliprodazhi__transportnogo_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4788/4788542_onore__de__balzak_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4787/4787832_skachat__shrift_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000543e5.bin
87e682fef24a58f9b263f9bc4d3e6cfc98f5e2ccf5d826ddd60bd9f5bd4bbfd5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x543E5 8056 bytes
font_01_sfnt_off00055b8c.bin
532b98ff308a0e54042be239eea4b0bf0b06e218f1353f082fefa2704ef5f4fb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55B8C 15012 bytes

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