Malicious PDF — malware analysis report

Static analysis result for SHA-256 ceed832d9c41fa04…

MALICIOUS

PDF

370.1 KB Created: 2015-08-25 22:05:27 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 334acfe9bf223abba2434b498c56744f SHA-1: 5d3f228e9b1ca5669aeae69aae9f4c104ba34e35 SHA-256: ceed832d9c41fa04301b3bb34baa1c5163b3f34dd4c7d4ef8997ef59a7abf1ca
90 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, botcraftman.ru. This indicates the document is designed to lure the user to a malicious site, likely for phishing or to download further malware. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

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%B8%D0%B3%D1%80%D1%83+%D0%BC%D0%B0%D0%B7%D0%B0%D1%82%D1%80%D0%B0%D0%BA%D0%B5%D1%80%D1%8B+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4740/4740549_win__7__32_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4740/4740546_v__trave__sidel_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4740/4740550_skachat__3d__instruktor_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00058217.bin
6d1d03ad306f3d20c718c14677403a8810585782c5a09cb064cc071aa11f17f2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58217 9000 bytes
font_01_sfnt_off00059c31.bin
274e5338692256ef75d1dcf8312679586da443e1736754868635e01d2cdfdf5c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59C31 14068 bytes

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