Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f3271704a5297ca…

MALICIOUS

PDF

186.9 KB Created: 2015-08-08 10:43:48 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 11c2b71bfd3719193b5aa2161c8b00c5 SHA-1: 9ad36a3297b296796509a6c2e976274d03870767 SHA-256: 6f3271704a5297caf51320c96786071e5287adf68bd973cd6cca2cae1438e23f
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by multiple heuristics as malicious, including a critical alert for a redirector link to a known malicious domain. The ML classifier also assigned a high probability of maliciousness. The embedded URL points to http://botcraftman.ru/, which is identified as malicious infrastructure. This suggests the document's primary purpose is to redirect users to a harmful site, likely for further exploitation or credential harvesting.

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%BB%D0%B8%D0%B1%D0%B5%D1%80%D1%82%D0%B0+%D0%B0%D0%BB%D1%8C%D0%B1%D0%B0%D0%BD%D0%BE+%D0%B8+%D1%80%D0%B0%D0%BC%D0%B8%D0%BD%D0%B0+%D0%BF%D0%B0%D1%83%D1%8D%D1%80+%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://img0.liveinternet.ru/images/attach/c/6//4384/4384486_windows_xp_x64_sp3.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384929_prizentaciya_po_matematike_10_11_klass.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385825_flatout_2_ultimate_carnage_skachat_torrent.pdf
    • http://www.microsoft.com/typography/fonts/
    • http://www.microsoft.com/typography/fonts/You

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024805.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24805 3556 bytes
font_01_sfnt_off00025588.bin
0bdf372a0cd2ab39da681fa671ba03e25663fd710f08ef8300e31dd8aaa1f876		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25588 14908 bytes
font_02_sfnt_off000283c4.bin
7c3d3d7f198d7612fc8e58b56807f8bcdbce3e4375d2e53274eacb7075e6da64		 pdf-font-stream PDF embedded font (sfnt) at offset 0x283C4 14468 bytes
font_03_sfnt_off0002ae75.bin
7a1c3e2d9bdf77fb4591ee249278f574cb1f2e140c317a1e36bc527b8b368707		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AE75 6748 bytes
font_04_sfnt_off0002c1e4.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C1E4 6084 bytes
font_05_sfnt_off0002d179.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D179 3752 bytes

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