Malicious PDF — malware analysis report

Static analysis result for SHA-256 fcff9837e46ac8c6…

MALICIOUS

PDF

187.3 KB Created: 2015-07-25 03:03:32 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: cf0841e2afb693f88c6022d369a2ebda SHA-1: e128388f18d9a02a3b2787195a8408d2f9be1b20 SHA-256: fcff9837e46ac8c6ecac38f15cae517d08cbe4efcfcbc2eadafbe7bdc2720cfc
90 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating a link to known malicious redirector infrastructure. The ML classifier also flagged the PDF with high confidence. The embedded URL points to 'botcraftman.ru', which is likely used to redirect users to malicious content.

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%A0%D0%B0%D0%B7%D1%83%D0%BC%D0%BD%D1%8B%D0%B9+%D1%84%D0%B8%D1%82%D0%BD%D0%B5%D1%81+%D0%9A%D0%BD%D0%B8%D0%B3%D0%B0+%D1%82%D1%80%D0%B5%D0%BD%D0%B5%D1%80%D0%B0+-+%D0%A2%D0%B8%D0%BC%D1%83%D1%80+%D0%91%D0%B5%D1%81%D1%82%D0%B0%D0%B2%D0%B8%D1%88%D0%B2%D0%B8%D0%BB%D0%B8&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185015_licenzionnuyy_klyuch_vkduty_pro.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4193/4193873_luchshie_opernuye_arii_skachat_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4197/4197942_skachat_counter_strike_source_v77_cherez_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000247a8.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x247A8 3556 bytes
font_01_sfnt_off0002552b.bin
158d02ce655dcfda2118ed5b81d7d0f65c14f870bdd5911f6b5394a5e429208e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2552B 14900 bytes
font_02_sfnt_off000283ab.bin
14901a716d0bc94c9d4c30a391af2fb3e0db00391fee008e1b2c63ba7a522be1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x283AB 14520 bytes
font_03_sfnt_off0002ae7a.bin
ac9ce7617c66b48137eceff00d8116b9c7e20165f6a918ad9f0471611f75ef09		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AE7A 7128 bytes
font_04_sfnt_off0002c33e.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C33E 6084 bytes
font_05_sfnt_off0002d2d3.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D2D3 3752 bytes

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