Malicious PDF — malware analysis report

Static analysis result for SHA-256 63e6610c5d5c362d…

MALICIOUS

PDF

185.3 KB Created: 2015-08-08 11:35:15 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 72dea8bcb1ff2913c3a3418e79cae165 SHA-1: 7fe3c8756324c08f8fa36c892ac95347a06b22f7 SHA-256: 63e6610c5d5c362db6e4b6e782119f2de04e78d8df2272b211ae89fc3255d5dd
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document was flagged by a machine learning classifier and contains a critical heuristic indicating a link to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/, is likely used to direct users to a malicious website. No scripts were extracted, but the presence of a malicious link suggests an attempt to lure the user to a harmful destination.

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=%D1%81%D1%86%D0%B5%D0%BD%D0%B0%D1%80%D0%B8%D0%B9+1+%D1%81%D0%B5%D0%BD%D1%82%D1%8F%D0%B1%D1%80%D1%8F+%D0%B4%D0%BB%D1%8F+%D1%81%D1%82%D1%83%D0%B4%D0%B5%D0%BD%D1%82%D0%BE%D0%B2&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4387/4387961_dell_webcam_central_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384288_skachat_winject.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4387/4387456_musulmanskie_multiki_skachat_besplatno.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_off0002404f.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2404F 3556 bytes
font_01_sfnt_off00024dd2.bin
062165f841489f3d3cb9e7ff879b9d95d4ace0bb122a474f7ca2b5fbbd76acfa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24DD2 15252 bytes
font_02_sfnt_off00027d1c.bin
dde8cb3db78f49492d397de1013a074ab9c596bc0508faa33f94bd64189db0ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27D1C 14468 bytes
font_03_sfnt_off0002a7cf.bin
69f3497bad8e0bcc4991e2a3db2db0251a537625149b486a16de13924ea962c9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A7CF 6780 bytes
font_04_sfnt_off0002bb4e.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BB4E 6084 bytes
font_05_sfnt_off0002cae3.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CAE3 3752 bytes

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