Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e39b212e2cba3e3…

MALICIOUS

PDF

372.5 KB Created: 2015-08-23 23:53:32 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: f6fb79250f513ef7c0f840e647f74a69 SHA-1: bd821d30bbac1b5d563511fbe8a9e430671bd718 SHA-256: 2e39b212e2cba3e31aa22d35ed1af000c11ebfcefcdb1b3b8d3ef77a4fa330ea
90 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for containing a malicious redirector link pointing to botcraftman.ru. An ML classifier also assigned a high probability of maliciousness. The embedded URL is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9962

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%BF%D1%80%D0%BE%D1%88%D0%B8%D0%B2%D0%BA%D1%83+%D0%BD%D0%B0+%D0%BD%D0%BE%D0%BA%D0%B8%D0%B0+5230&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693397_solidworks__2013__skachat_.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693127_gta__4__kavkaz_.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693500_teamviewer__oshibka__soglasovaniya_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00058a47.bin
e6a2226faf25cc93236105ac2bd3d7b5bce21c98ecaf5d072876a909eebaf2b8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58A47 8284 bytes
font_01_sfnt_off0005a24f.bin
0f6a3d24bf3af617a6118a975666b936d59e086ad08a52209c37b66a1110f52f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A24F 15600 bytes

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