Malicious PDF — malware analysis report

Static analysis result for SHA-256 1094663e90758f04…

MALICIOUS

PDF

188.3 KB Created: 2015-07-23 21:10:48 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 10ef93816f77a346da3fb706e52721da SHA-1: 011ecb30245be98d7198f479a0eb6959b53e6c23 SHA-256: 1094663e90758f04369b48ca5900173abbf5de0596b567968ea4ef1ce9d1d222
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, botcraftman.ru. This heuristic, combined with the ML classifier's high confidence, indicates the document's primary purpose is to redirect users to malicious infrastructure. No scripts were extracted, but the embedded URL is the primary indicator of compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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%B1%D0%BE%D0%B3+%D0%B1%D0%BE%D0%B3%D0%BE%D0%B2+%D0%BC%D0%B0%D1%85%D0%B0%D0%B4%D0%B5%D0%B2+%D0%B2%D1%81%D0%B5+%D1%81%D0%B5%D1%80%D0%B8%D0%B8+%D1%81+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%BE%D0%B9+%D0%BE%D0%B7%D0%B2%D1%83%D1%87%D0%BA%D0%BE%D0%B9+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184376_skachat_besplatno_masha_i_medved_vse_serii_odnim_faylom.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184515_skachat_vse_albomuy_atb_cherez_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184322_the_klub_17_rusifikator.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_off00024955.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24955 3556 bytes
font_01_sfnt_off000256d8.bin
ddaa9be554ac010e313ae646ebf77253447c8c74d5293fb7b2010db86bd92245		 pdf-font-stream PDF embedded font (sfnt) at offset 0x256D8 15812 bytes
font_02_sfnt_off000287c4.bin
b37701965d1bf3907c1453c42f5597b931bf661880ab3ca62e85abca0d314471		 pdf-font-stream PDF embedded font (sfnt) at offset 0x287C4 14532 bytes
font_03_sfnt_off0002b2b7.bin
e313dc51cac07e793e0d6b51616880724f29e99a20dd7935fd4f2da50a81e25e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B2B7 7084 bytes
font_04_sfnt_off0002c73c.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C73C 6084 bytes
font_05_sfnt_off0002d6d1.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D6D1 3752 bytes

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