Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4efe7f1d1413987…

MALICIOUS

PDF

351.9 KB Created: 2015-08-25 22:21:34 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 16a9b4ae79604c938e4e84ace073ac91 SHA-1: 56d5aa36d869df04062ec970c951fca002e891b3 SHA-256: d4efe7f1d141398702d59f3fd560153be917a85794e1f80169fb0f28c6158952
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 embedded URL points to 'http://botcraftman.ru/', which is identified as malicious infrastructure. This suggests the document's primary purpose is to redirect users to a harmful 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%9A%D0%B0%D0%BA+%D0%BD%D0%B0%D1%80%D0%B8%D1%81%D0%BE%D0%B2%D0%B0%D1%82%D1%8C+%D0%BE%D0%B1%D0%BD%D0%B0%D0%B6%D0%B5%D0%BD%D0%BD%D0%BE%D0%B5+%D0%B6%D0%B5%D0%BD%D1%81%D0%BA%D0%BE%D0%B5+%D1%82%D0%B5%D0%BB%D0%BE+%D0%BA%D0%B0%D1%80%D0%B0%D0%BD%D0%B4%D0%B0%D1%88%D0%BE%D0%BC&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4740/4740546_v__trave__sidel_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4740/4740865_gramotnoe__rezyume__obrazec_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4740/4740839_chernobuyl__zona__otchuzhdeniya_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00053880.bin
43edb62b2012e4d7baa244d70bc73957aaa6c2332ed3af59f3793dd8cd5abb36		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53880 9764 bytes
font_01_sfnt_off000553d8.bin
463695bdd87ef6c3b0f0cc807d25413f358b312222582fec77bd265d2cc6cb9b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x553D8 14008 bytes

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