Malicious PDF — malware analysis report

Static analysis result for SHA-256 e55e400dbb6b896c…

MALICIOUS

PDF

186.5 KB Created: 2015-08-08 12:33:56 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 9f7fa6a4f56c4d5c85f5714b7f5aaca8 SHA-1: 9abe817ac110ac5a2d7306067b56d1b54892c34c SHA-256: e55e400dbb6b896c3533262d1f91bbd07065c631c35fb84284fc7b8ee4d8afdf
90 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics as malicious, specifically for containing a link to known malicious redirector infrastructure. The embedded URL points to 'botcraftman.ru', which is classified as a malicious redirector. This suggests the document's primary purpose is to lure users to a harmful website. No scripts were extracted, and the document body was truncated, limiting further analysis of the exact lure.

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=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D1%83+%D0%B4%D0%BB%D1%8F+%D0%B7%D0%B0%D0%BF%D0%B8%D1%81%D0%B8+%D0%B2%D0%B8%D0%BD%D0%B4%D0%BE%D0%B2%D1%81+7+%D0%BD%D0%B0+%D1%84%D0%BB%D0%B5%D1%88%D0%BA%D1%83&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4389/4389762_osnovnaya_nadpis_chertezha_a4_skachat.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4257/4257529_skachat_programmu_dlya_proshivki_yebu.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4387/4387147_metro_redux_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000243a8.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x243A8 3556 bytes
font_01_sfnt_off0002512b.bin
859498285374616f3140bd1c2ae59ce451f8307ddb723a03cd39c62d71858e09		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2512B 14900 bytes
font_02_sfnt_off00027fa4.bin
93a49ce87bd7d5cdfdacf89336ea2a7eb914e88732bff58cfe8ff35f5cf00ac7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27FA4 14568 bytes
font_03_sfnt_off0002aaa5.bin
91b3360144e9f7b39d2f57804fe375001649e5584389a6adf2667008fb7ea699		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AAA5 7292 bytes
font_04_sfnt_off0002c00f.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C00F 6084 bytes
font_05_sfnt_off0002cfa4.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CFA4 3752 bytes

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