Malicious PDF — malware analysis report

Static analysis result for SHA-256 307ffa3b37a6601a…

MALICIOUS

PDF

184.9 KB Created: 2015-07-25 03:02:08 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 9e78dd75616761fd022dce3fe466c991 SHA-1: 91f8ddf30297939ac62851d74b845e2f526cc9c1 SHA-256: 307ffa3b37a6601a89f429eb86fada643b8861b4132c43f51b32ae99794b5099
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1566.002 Spearphishing Attachment T1071.001 Web Protocols

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 gateway to a phishing or malware distribution site. No scripts were extracted, and the document body was heavily 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%9E%D1%82%D0%B2%D0%B5%D1%82%D1%8B+%D0%BD%D0%B0+%D1%82%D0%B5%D1%81%D1%82%D1%8B+%D1%81%D0%B8%D0%BD%D0%B5%D1%80%D0%B3%D0%B8%D1%8F&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4197/4197945_probnoe_gia_po_russkomu_2015.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191733_lovushka_dlya_nevestuy_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192675_igra_prestolov_2_sezon_skachat_besplatno_cherez_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024307.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24307 3556 bytes
font_01_sfnt_off0002508a.bin
869b371dc0fda5357baeab42ba8b4dc478a1e16254f1ab2ed9439223b89a445b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2508A 14256 bytes
font_02_sfnt_off00027d90.bin
dde8cb3db78f49492d397de1013a074ab9c596bc0508faa33f94bd64189db0ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27D90 14468 bytes
font_03_sfnt_off0002a843.bin
8172737085d1b175fe2f52fdad09a6e51a7c71bd4d866ef79d29462afe0e55ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A843 6264 bytes
font_04_sfnt_off0002b9e8.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B9E8 6084 bytes
font_05_sfnt_off0002c97d.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C97D 3752 bytes

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