Malicious PDF — malware analysis report

Static analysis result for SHA-256 66fffca51ac8892c…

MALICIOUS

PDF

185.8 KB Created: 2015-07-24 15:43:04 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: a8e10824bc796994067a34ecc1f26634 SHA-1: aa14c39e6767d4c9f1b250e0323b1de8675e7213 SHA-256: 66fffca51ac8892c1e74d7851a0bb175962c2d88cbbf4ea46b1c6818bd2c1bc1
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. 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 potentially harmful website.

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%A1%D0%BA%D0%B8%D0%BD%D1%8B+%D0%BF%D0%BE+%D0%BD%D0%B8%D0%BA%D0%B0%D0%BC+%D0%BC%D0%B0%D0%B9%D0%BD+%D0%BA%D1%80%D0%B0%D1%84%D1%82+1+7+2+%D1%81+%D0%BF%D0%BB%D0%B0%D1%89%D0%B0%D0%BC%D0%B8&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183176_lazer_iz_dvd_privoda_shema.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4186/4186191_skachat_chistuyy_server_dlya_css_v34.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191586_variantuy_gia_po_russkomu_yazuyku_2015_s_otvetami_skachat.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_off0002440b.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2440B 3556 bytes
font_01_sfnt_off0002518e.bin
e7993b6580092b687a2297381d536a6bf91e7270718b6fab048df4bf6aa2ee0b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2518E 14324 bytes
font_02_sfnt_off00027ec3.bin
628d57ec5e84c9cf5a7fc1dbc9e4c8adee0b62f752166b81ba3da8ffdf837371		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27EC3 14512 bytes
font_03_sfnt_off0002a9a5.bin
3fd08dc616a76add90d5d001c75b8fe0d4b1b07c49dc89a128944ff0fcd79341		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A9A5 6788 bytes
font_04_sfnt_off0002bd35.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BD35 6084 bytes
font_05_sfnt_off0002ccca.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CCCA 3752 bytes

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