Malicious PDF — malware analysis report

Static analysis result for SHA-256 dfad4d9c3676fd8b…

MALICIOUS

PDF

358.6 KB Created: 2015-08-29 03:09:50 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 2e238f3690f147c2c94551cfe0540f05 SHA-1: 0633ee68aba1e1341ede6ca94cafce338f7c3342 SHA-256: dfad4d9c3676fd8b1f4feb99cf7f9c017bbd2d0324eee945bc5e9f5b4caffa43
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF document contains a link to a known malicious redirector, indicating an attempt to lure users to a harmful website. The ML classifier also flagged this PDF with high confidence. The embedded URL is the primary indicator of malicious intent, likely serving as a lure for phishing or to download further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%81%D0%BA%D0%B0%D0%BD%D0%BC%D0%B0%D1%82%D0%B8%D0%BA+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4818/4818979_russkiy__yazuyk__9_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4818/4818043_knigi__po__magii_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4817/4817903_brauzeruy__uran__skachat_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00055b88.bin
dc9d0360a90a51e4ebe8fe3b035ebdf0b47b6c556ff708f366801fc5a30f0df5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55B88 7168 bytes
font_01_sfnt_off00057055.bin
160eb5d874cbd776efe63f34b7400e056d5f4b669041e85745d75bc775f84df0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57055 13296 bytes

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