Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ea77ef05671770d…

MALICIOUS

PDF

364.5 KB Created: 2015-08-28 19:00:12 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 4bdee8fd597cc0d0de35dbd2da8ef826 SHA-1: 0ef212ac2c192d6ae9a5a0b694b6d62e2214b58a SHA-256: 0ea77ef05671770df977468afe03a15f47cfd3f9f663ccb9196405fccc108132
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector. This suggests the document is part of a phishing or malware distribution campaign. Although no scripts were explicitly extracted, the presence of a malicious URL indicates an attempt to redirect the user to a harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9950

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%B4%D0%B8%D0%BA%D1%82%D0%B0%D0%BD%D1%82+%D0%BE%D1%81%D0%B5%D0%BD%D0%BD%D0%B8%D0%B9+%D0%BB%D0%B5%D1%81+%D0%B4%D0%BB%D1%8F+7+%D0%BA%D0%BB%D0%B0%D1%81%D1%81%D0%B0+%D0%BA%D1%80%D0%B0%D1%81%D0%B8%D0%B2+%D0%B8+%D0%BF%D0%B5%D1%87%D0%B0%D0%BB%D0%B5%D0%BD&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4810/4810530_skachat__porno__video_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4810/4810332_skachat__muzuyku__besplatno_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809137_reshenie__zadach__po_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000571c3.bin
caaeb62833e465516ad67be18ebcd2b16bea46816dd4c7306f850fdd5c56326a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x571C3 7756 bytes
font_01_sfnt_off00058838.bin
645869cdfe5a306eaebe58dfd7d47f5e84721da96ff6b9aad818f3eac9b32f78		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58838 13312 bytes

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