Malicious PDF — malware analysis report

Static analysis result for SHA-256 40dae9435bee2fd1…

MALICIOUS

PDF

342.1 KB Created: 2015-08-26 10:23:26 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: c454566dcee8d8d9ec6690ba0091ea00 SHA-1: 2eff4d80726368232a0e410998bb2c92ab717359 SHA-256: 40dae9435bee2fd15129046308dfaee9d3d12b08a44259b09a85050f6b535575
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector. The redirector URL is http://botcraftman.ru/?lip&keyword=%D0%9F%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D0%B0+%D0%B1%D0%B0%D1%80%D1%81+%D0%B1%D1%8E%D0%B4%D0%B6%D0%B5%D1%82&charset=utf-8. This suggests the document's primary purpose is to redirect users to a malicious website, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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=%D0%9F%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D0%B0+%D0%B1%D0%B0%D1%80%D1%81+%D0%B1%D1%8E%D0%B4%D0%B6%D0%B5%D1%82&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4751/4751834_deystviya__so__stepenyami_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4751/4751942_moy__govoryaschiy__kot_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4751/4751947_dtm__experience__2013_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000513c3.bin
39ec506f6890a15ec5d4bdcfb4442e533ffb005052290bda3e8e9a204fea876b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x513C3 7844 bytes
font_01_sfnt_off00052ac2.bin
6864a73d7714e373ce1f3db0cffe7227a8de910ad741ae9219ee318246343e7f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x52AC2 15064 bytes

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