Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f6ec41373d3e307…

MALICIOUS

PDF

182.3 KB Created: 2015-08-09 13:08:41 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 4bd2c5c93ca079bb84d462756ffe2bf1 SHA-1: ba47a4e01f25d86d525304fffd0397972002b531 SHA-256: 0f6ec41373d3e307b7b3b0ce980858e704ec58bc8996a1a51958cabea7007634
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a critical heuristic for containing a link to a known malicious redirector, botcraftman.ru. This suggests the document's primary purpose is to lure users to a malicious website. No scripts were extracted, but the presence of embedded URLs and the critical heuristic strongly indicate a phishing or malware distribution attempt.

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%B1%D0%B0%D0%B3%D0%B8+%D0%B2+%D0%B2%D0%BA&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4415/4415848_skachat_chituy_dlya_point_blank_na_ochki_besplatno.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4415/4415768_chituy_na_dayz_standalone_036_piratka.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4389/4389806_skachat_besplatno_knigu_troe_iz_lesa.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_off00023a92.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23A92 3556 bytes
font_01_sfnt_off00024815.bin
8abf6f944f660dfa826f0981433b2da5aff7628136434b8897a855a1f5bf106b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24815 14584 bytes
font_02_sfnt_off00027538.bin
163142455a5560a1f6759d0ead96de5f50a47653c77b96353ea21901cf90e8c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27538 14468 bytes
font_03_sfnt_off00029fec.bin
5974d28697281a00ff847873b75408e62e150c30853594e17e4251778bcb4833		 pdf-font-stream PDF embedded font (sfnt) at offset 0x29FEC 5728 bytes
font_04_sfnt_off0002af86.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AF86 6084 bytes
font_05_sfnt_off0002bf1b.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BF1B 3752 bytes

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