Malicious PDF — malware analysis report

Static analysis result for SHA-256 347f0a29f558d876…

MALICIOUS

PDF

186.0 KB Created: 2015-08-06 11:20:34 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: bf1d9fc3b32634dfdfd5076134df749c SHA-1: 8e1f622ff79101ec51c31321b1e4a40bcaa9a0c5 SHA-256: 347f0a29f558d8769079b098e97509ec5e226c6de4d416598fe07aeaa9103607
90 Risk Score

Malware Insights

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

The PDF document was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL, http://botcraftman.ru/..., is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware download site. No scripts were extracted, and the document body was not parsable.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

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%B3%D1%83%D0%BB%D0%B6%D0%B8%D0%B3%D0%B8%D1%82+%D1%81%D0%B0%D1%82%D1%8B%D0%B1%D0%B5%D0%BA%D0%BE%D0%B2+%D0%BC%D1%803+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4309/4309019_skachat_ryep_pro_lyubov.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4309/4309183_rail_simulator_skachat_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4309/4309302_prezentaciya_po_geografii_11_klass_afrika.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024360.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24360 3556 bytes
font_01_sfnt_off000250e3.bin
20723eaf028b5640dce1a4d299381985ab3f567ffa23e2bb2eb2dec7a9530a6b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x250E3 14884 bytes
font_02_sfnt_off00027ec9.bin
7b3645de8cab34184259d118056e04c3a8a7e884e4d4c5564538de53db7fe6dc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27EC9 14468 bytes
font_03_sfnt_off0002a975.bin
336cbe9ad9d668ec6c1a35d3aaf3cea5cdff9cdaf9eaac893085cb9d694e8f8a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A975 7184 bytes
font_04_sfnt_off0002be61.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BE61 6084 bytes
font_05_sfnt_off0002cdf6.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CDF6 3752 bytes

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