Malicious PDF — malware analysis report

Static analysis result for SHA-256 046523e6e4d9f6f0…

MALICIOUS

PDF

188.0 KB Created: 2015-08-08 10:38:45 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: cd80ba1efe0a4f9e0a44ef06cddf6510 SHA-1: 419c3e303dd5bcf37c5c47b2507768d664a0f5a3 SHA-256: 046523e6e4d9f6f0d560d3e42a031d9ebaad6cce4669d2e2096a3852cdeeeb40
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by a malicious redirector heuristic, indicating it contains a link to known malicious infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL, http://botcraftman.ru/..., is likely part of a phishing or malware distribution chain. No scripts were extracted, but the presence of a malicious link is sufficient evidence of malicious intent.

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%B3%D0%B4%D0%B7+%D0%BF%D0%BE+%D0%BC%D0%B0%D1%82%D0%B5%D0%BC%D0%B0%D1%82%D0%B8%D0%BA%D0%B5+5+%D0%BA%D0%BB%D0%B0%D1%81%D1%81+%D0%B4%D0%BE%D1%80%D0%BE%D1%84%D0%B5%D0%B5%D0%B2%D0%B0+%D1%88%D0%B0%D1%80%D1%8B%D0%B3%D0%B8%D0%BD%D0%B0+%D0%BE%D1%82%D0%B2%D0%B5%D1%82%D1%8B+2015&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384430_winject.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383843_skachat_sovetuy_dlya_nachinayuschego_yuvelira.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385112_pro_tomku_kratkoe_soderzhanie.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_off00024a1a.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24A1A 3556 bytes
font_01_sfnt_off0002579d.bin
af310eb7b4a3aee1ac8084a6a8b39b9c548598d1e6e949f1a5e70d3bdbd802d6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2579D 14636 bytes
font_02_sfnt_off000285a0.bin
18b1ffe35628204b243d861092926e23afbf2104ace35e2269924b4fa701c466		 pdf-font-stream PDF embedded font (sfnt) at offset 0x285A0 14700 bytes
font_03_sfnt_off0002b0f4.bin
738620328148dfc2f793e256b5266685cea1e583d1d096981d495ec53a080a6d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B0F4 7252 bytes
font_04_sfnt_off0002c62a.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C62A 6084 bytes
font_05_sfnt_off0002d5bf.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D5BF 3752 bytes

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