Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7a5d60e1ae48270…

MALICIOUS

PDF

186.1 KB Created: 2015-08-05 16:23:09 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 17a48e847fdb5fb48236ce0b940f8054 SHA-1: 4cfefda645ec9c38fa59f1604cc4e9f82c5981a0 SHA-256: c7a5d60e1ae48270bc47dfa4629fdf9d21a61d9e8958c6d38a80174d17ae696f
90 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for containing a link to a known malicious redirector. The ML classifier also assigned a high probability of maliciousness. The embedded URL `http://botcraftman.ru/...` is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution page. 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=%D1%82%D0%B5%D0%BA%D1%81%D1%82+%D0%BD%D0%B0+%D0%B1%D0%BB%D0%B0%D0%B3%D0%BE%D0%B4%D0%B0%D1%80%D1%81%D1%82%D0%B2%D0%B5%D0%BD%D0%BD%D1%8B%D0%B5+%D0%BF%D0%B8%D1%81%D1%8C%D0%BC%D0%B0&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4306/4306048_mihail_krug_skachat_besplatno_cherez_torrent_vse_albomuy.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305084_programma_dlya_sozdaniya_videorolikov_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304827_skachat_kartu_rossii_dlya_navitel_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024574.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24574 3556 bytes
font_01_sfnt_off000252f7.bin
b991e0d3578783ef844a3e4bfb79e01c153aa27ff58f8cf895100cbb2e841280		 pdf-font-stream PDF embedded font (sfnt) at offset 0x252F7 14448 bytes
font_02_sfnt_off00028047.bin
dde8cb3db78f49492d397de1013a074ab9c596bc0508faa33f94bd64189db0ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28047 14468 bytes
font_03_sfnt_off0002aafa.bin
0f35057adff0af028a8346ed36e155d1b9f844860599e1885e6d93507093120b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AAFA 6836 bytes
font_04_sfnt_off0002bea2.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BEA2 6084 bytes
font_05_sfnt_off0002ce37.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CE37 3752 bytes

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