Malicious PDF — malware analysis report

Static analysis result for SHA-256 606b8cb346cfdb8a…

MALICIOUS

PDF

185.2 KB Created: 2015-07-23 20:13:30 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: be70ef20046a945d006aae909359c72e SHA-1: 6448502d5fb7ba75d74da4c033ca9cddf5eb10da SHA-256: 606b8cb346cfdb8a64172b14fa63de38f43fa48cf4c9c73ef15f6925c1f97b8a
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by multiple heuristics as malicious, specifically for containing a link to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL points to 'botcraftman.ru', which is identified as a malicious redirector. This suggests the document's primary purpose is to lure users to a harmful site.

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%D0%BD%D1%8F%D1%82%D1%8C+%D0%BA%D0%B2%D0%B0%D1%80%D1%82%D0%B8%D1%80%D1%83+%D0%BD%D0%B0+%D0%B4%D0%BB%D0%B8%D1%82%D0%B5%D0%BB%D1%8C%D0%BD%D1%8B%D0%B9+%D1%81%D1%80%D0%BE%D0%BA+%D0%B2+%D0%B1%D1%80%D0%B5%D1%81%D1%82%D0%B5&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184279_skachat_sims_4_cherez_torrent_na_russkom_besplatno.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183092_lebedi_shema_vuyshivki.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184369_serial_andromeda_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_off00024193.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24193 3556 bytes
font_01_sfnt_off00024f16.bin
2d0723d278f7b0daf07bebff884ef14b0ee1fc1f6c66d9d944771babddb252fd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24F16 14300 bytes
font_02_sfnt_off00027bf3.bin
dde8cb3db78f49492d397de1013a074ab9c596bc0508faa33f94bd64189db0ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27BF3 14468 bytes
font_03_sfnt_off0002a6a6.bin
527c50da69c92f5e08316174c2737aec36c50bd6b352e15ef98c363a927fb9a7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A6A6 6992 bytes
font_04_sfnt_off0002bad5.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BAD5 6084 bytes
font_05_sfnt_off0002ca6a.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CA6A 3752 bytes

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