Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e974727ff132292…

MALICIOUS

PDF

386.7 KB Created: 2015-08-28 01:36:52 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: a976428164566987acdfae92a1d8f4db SHA-1: ce9522a830b4fda57a66720773d621d47979fbc3 SHA-256: 5e974727ff1322928597cd5f0ef141d6833be9c7a9cb75fd6233cae6463b21db
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing indicating a link to known malicious redirector infrastructure. The ML classifier also flagged the PDF as malicious with high confidence. The embedded URL, http://botcraftman.ru/..., is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site. No scripts were extracted, but the presence of a malicious URL strongly suggests a phishing or redirection attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9948

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%D1%85%D0%B5%D0%BC%D0%B0+%D1%80%D0%B0%D0%B7%D0%B2%D0%B8%D1%82%D0%B8%D1%8F+%D0%BC%D0%B5%D1%82%D1%80%D0%BE%D0%BF%D0%BE%D0%BB%D0%B8%D1%82%D0%B5%D0%BD%D0%B0+%D0%B2+%D0%BC%D0%BE%D1%81%D0%BA%D0%B2%D0%B5+%D0%B4%D0%BE+2030+%D0%B3+%D0%BD%D0%B0+%D0%BA%D0%B0%D1%80%D1%82%D0%B5+%D0%BC%D0%BE%D1%81%D0%BA%D0%B2%D1%8B&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4788/4788931_skachat__igru__left_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4790/4790187_zayavlenie__na__vuyplatu_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4790/4790163_shpargalki__ugolovnoe__pravo_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005c29a.bin
fd5a234fcdbea08a00016c7deac8d105c4797c5de27456763ed2e51695fb5c2b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C29A 8384 bytes
font_01_sfnt_off0005db1b.bin
649f1b46bb68bbf5672d232870d012dbf19f615ac5af864cdc6efada4761ae87		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DB1B 15300 bytes

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