Malicious PDF — malware analysis report

Static analysis result for SHA-256 59f2967cb7aab0e5…

MALICIOUS

PDF

353.6 KB Created: 2015-08-28 11:49:29 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: bd74f73ba667b9e3f87d21371d018808 SHA-1: 3a7d2629f87bb2591f1410c6cff939e0d78474e5 SHA-256: 59f2967cb7aab0e5712eddf1bf58cc00ca445fae8dfd5494d295b05814ab7358
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 linking to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL points to botcraftman.ru, which is identified as a malicious redirector. No scripts were extracted, but the presence of the malicious link strongly suggests a phishing or malware delivery attempt.

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%82%D0%B5%D1%81%D1%82%D1%8B+%D0%BF%D0%BE+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%BE%D0%B9+%D0%BB%D0%B8%D1%82%D0%B5%D1%80%D0%B0%D1%82%D1%83%D1%80%D0%B5+9+%D0%BA%D0%BB%D0%B0%D1%81%D1%81+%D1%81+%D0%BE%D1%82%D0%B2%D0%B5%D1%82%D0%B0%D0%BC%D0%B8&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802610_skachat__rep__minus_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802582_oboi__devushki__skachat_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802669_sektor__gaza__skachat_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005404a.bin
79f426da100184bfcb262d1edbf334b9c1ccd1f5d5b10201e6c565f539907461		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5404A 8000 bytes
font_01_sfnt_off0005577c.bin
feda7e169fd9567460a1303f239ec76dece9e6efcb18aa69304e025f5457b80d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5577C 14928 bytes

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