Malicious PDF — malware analysis report

Static analysis result for SHA-256 32c82f580398f8ed…

MALICIOUS

PDF

360.5 KB Created: 2015-08-28 01:42:24 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 1846e0e7f18fecba960ce271cf03516c SHA-1: 8d11490b929287aaee21cf9573d0288c3b743108 SHA-256: 32c82f580398f8ed37afadeaf8796de1c55b0863c60453038b820589f1cbd996
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also assigned a high probability of maliciousness. The embedded URL points to botcraftman.ru, which is identified as malicious. No scripts were extracted, but the presence of the malicious link strongly suggests a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

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%BA%D0%B0%D0%BA+%D0%B2%D0%B5%D1%80%D0%BD%D1%83%D1%82%D1%8C+%D0%BA%D0%BD%D0%BE%D0%BF%D0%BA%D1%83+%D0%B2%D1%8B%D0%BA%D0%BB%D1%8E%D1%87%D0%B5%D0%BD%D0%B8%D1%8F+%D0%B2+windows+8+%D0%BD%D0%B0+%D0%BF%D0%B0%D0%BD%D0%B5%D0%BB%D1%8C+%D0%B7%D0%B0%D0%B4%D0%B0%D1%87&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4789/4789249_luntik__novuye__serii_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4788/4788126_kapa__skachat__vse_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4789/4789201_invayt__koduy__dlya_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00055e66.bin
532eb329bf751842d030ebc296f29b246114b49f2396d1226b4328d86c66e9d8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55E66 9496 bytes
font_01_sfnt_off0005797f.bin
2b68cdc00e02e90db3259312b20bdd1f5adcaecbaf6894f813b059ae4a78a2db		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5797F 12872 bytes

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