Malicious PDF — malware analysis report

Static analysis result for SHA-256 5db463a64fbd31dd…

MALICIOUS

PDF

354.3 KB Created: 2015-08-26 10:05:06 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 52f05f24ea02207d96f6bab751e77bad SHA-1: f5bb742f80bd6b60a17810b4829796ec577bc4ee SHA-256: 5db463a64fbd31dd891c307cba180a7581b9b71cb3144b26ec0ffcc38568de2c
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, indicating an attempt to lure the user to a harmful site. The ML classifier also flagged this PDF with high confidence. While no scripts were extracted, the embedded URL is the primary indicator of malicious intent, likely serving as a lure for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9897

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%A3%D0%B1%D1%80%D0%B0%D1%82%D1%8C+%D0%B2%D0%BE%D0%BA%D0%B0%D0%BB+%D0%B8%D0%B7+%D0%BF%D0%B5%D1%81%D0%BD%D0%B8+reaper+cocos&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4752/4752280_knigi__vadima__zelanda_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4751/4751684_skachat__mutatoruy__dlya_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4751/4751666_warhammer__40000__dawn_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00053edb.bin
106dd096076a361a00da767f869cc76bbfda27025575fb5f63692e126711f6e0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53EDB 9268 bytes
font_01_sfnt_off00055796.bin
b6622901e55c6dce3adc4bd6c9c3ff04d8239aa88d959353ce05fa6ce2f619b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55796 16620 bytes

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