Malicious PDF — malware analysis report

Static analysis result for SHA-256 5bf54d1341bfd14a…

MALICIOUS

PDF

357.5 KB Created: 2015-08-28 11:29:06 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 225b3ee1f674f2dacc9858ea6b8affa1 SHA-1: b0b45f59aeab232b4e45e7d11ea182b62e837b5b SHA-256: 5bf54d1341bfd14a9bdc623a0dafc863c513feb6f93b3f71044cab5f0bd15cb0
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by multiple heuristics as malicious, specifically for containing a link to known malicious redirector infrastructure. The embedded URL `http://botcraftman.ru/...` is the primary indicator of malicious intent, likely serving as a lure for further malicious activity. No scripts were extracted, but the presence of a 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%A1%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B8%D0%B3%D1%80%D1%83+%D0%BA%D0%B0%D0%BA+%D0%B4%D0%BE%D1%81%D1%82%D0%B0%D1%82%D1%8C+%D1%81%D0%BE%D1%81%D0%B5%D0%B4%D0%B0+%D0%B4%D0%BB%D1%8F+%D0%B0%D0%BD%D0%B4%D1%80%D0%BE%D0%B8%D0%B4&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4790/4790772_bah__adazhio_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4798/4798083_skachat__zhurnal__radio_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4797/4797585_koduy__v__sims_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005539d.bin
1c6e7a3d9a31a899729098ebdfca6a9dc227382f3ec990879e8bdecfc5fb68e6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5539D 8136 bytes
font_01_sfnt_off00056b4b.bin
1a69573edb1c0529e9e50f5150f2e2c015427d35a11a3eae8724be67c7e3a050		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56B4B 13272 bytes

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