Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7c412632452047e…

MALICIOUS

PDF

385.9 KB Created: 2015-08-25 08:30:00 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: f32e23f76937959d5d2c71b5945dffeb SHA-1: d7d99679ce3ad8207e0f0f7e50d571b9d95370a9 SHA-256: f7c412632452047eede6eef648baf6cc10076c22dab16cb06d0860980e922333
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

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. No scripts were extracted, but the presence of a malicious URL is sufficient to classify the attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9910

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%BE%D0%B4+%D0%BF%D1%80%D0%BE%D0%B4%D1%83%D0%BA%D1%82%D0%B0+%D0%B4%D0%BB%D1%8F+medal+of+honor+warfighter+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/6//4725/4725110_angry__birds__rio_.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4725/4725102_drayver__shturmann__link_.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4725/4725132_skachat__zhivuye__oboi_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005b7b2.bin
9007ccc84847feb64cf1184262eb4c61d52ef260dd8cb4e5eb97321a92f46d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B7B2 10544 bytes
font_01_sfnt_off0005d50d.bin
76597b134d87aea583739aaba85fa9e5da70e02b99d008b9d078c1807b4fb626		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D50D 16796 bytes

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