Malicious PDF — malware analysis report

Static analysis result for SHA-256 362ed193720dfec6…

MALICIOUS

PDF

184.8 KB Created: 2015-08-08 12:16:18 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: ef08c488d44bba898ee1ae76d22c1310 SHA-1: dc640417e440c96c8c82cb828907f137c54f2f47 SHA-256: 362ed193720dfec6ea8d1db9c3eb12d2e69c497e1ca9895729ea691d89d365c6
90 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also assigned a high probability of maliciousness. The embedded URL, http://botcraftman.ru/..., is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site. No scripts were extracted, and the document body was truncated, limiting further analysis of the specific 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=%D0%BA%D0%BE%D0%B4+%D0%B3%D0%BE%D1%80%D0%BE%D0%B4%D0%B0+%D0%BF%D0%BE+%D0%BD%D0%BE%D0%BC%D0%B5%D1%80%D1%83+%D1%82%D0%B5%D0%BB%D0%B5%D1%84%D0%BE%D0%BD%D0%B0&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4387/4387739_skachat_res_2015_besplatno.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4387/4387522_skachat_3_d_roliki_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4388/4388770_skachat_microsoft_exchange_server_2010_polnoe_rukovodstvo.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024130.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24130 3556 bytes
font_01_sfnt_off00024eb3.bin
6008012a8cf5d278f5b256b1cc23b87d23f7eb62a2fafd9ade2cdc2ff6e1aaef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24EB3 14904 bytes
font_02_sfnt_off00027c9c.bin
dde8cb3db78f49492d397de1013a074ab9c596bc0508faa33f94bd64189db0ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27C9C 14468 bytes
font_03_sfnt_off0002a74f.bin
77389157974e23a9eb8b937674d7606a2416c48b5ee006dc5c2d8e5da9ae7180		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A74F 6424 bytes
font_04_sfnt_off0002b98e.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B98E 6084 bytes
font_05_sfnt_off0002c923.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C923 3752 bytes

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