Malicious PDF — malware analysis report

Static analysis result for SHA-256 76d137e8071947ac…

MALICIOUS

PDF

185.7 KB Created: 2015-08-05 21:23:04 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 37f5b52ae4ff501375e7eea336ee777c SHA-1: 7260c896853eb75bcc77896d3bd2363f91f2b311 SHA-256: 76d137e8071947acf878f33a9c4f373775a6ca7e930ed473190855c0e2678010
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/..., is highly suspicious and likely serves as a lure to a malicious site. While no scripts were extracted, the presence of this malicious link strongly suggests 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%BA%D1%80%D0%B0%D1%81%D0%B8%D0%B2%D1%8B%D0%B5+%D0%B0%D0%B6%D1%83%D1%80%D0%BD%D1%8B%D0%B5+%D1%83%D0%B7%D0%BE%D1%80%D1%8B+%D1%81%D0%BF%D0%B8%D1%86%D0%B0%D0%BC%D0%B8+%D1%81%D0%BE+%D1%81%D1%85%D0%B5%D0%BC%D0%B0%D0%BC%D0%B8&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4307/4307307_planetary_annihilation_2013_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4306/4306399_gogol_zakoldovannoe_mesto_skachat_knigu.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4307/4307159_anlok_na_ayfon_4.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_off00024364.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24364 3556 bytes
font_01_sfnt_off000250e7.bin
538e8b12969975aa98cbd72e97999c9dbc3b7dd27bb374b9a072e7da3d2ef8ec		 pdf-font-stream PDF embedded font (sfnt) at offset 0x250E7 14900 bytes
font_02_sfnt_off00027e7f.bin
b4b78b71441c848d9cb267a1fe8d0da42235ee9c67d6c7dccc3c5bcd076ef03f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27E7F 14532 bytes
font_03_sfnt_off0002a96e.bin
6385d4017b9aec5be93b967f52306ac004f9f3a8be01421662e7b2e4dd6c7c4f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A96E 6828 bytes
font_04_sfnt_off0002bd19.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BD19 6084 bytes
font_05_sfnt_off0002ccae.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CCAE 3752 bytes

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