Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a61c9292fd6200a…

MALICIOUS

PDF

185.6 KB Created: 2015-07-23 20:14:49 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: a72cabf8805f2d777ea66fb6d57f2da5 SHA-1: 42339880853c63c137690e0f54c118d6996e2794 SHA-256: 3a61c9292fd6200ae53c42661adb2336ae650e45a651ee27cbc75775b1ae6413
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector. This indicates the document is likely part of a phishing or malware distribution campaign. 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%9D%D0%BE%D1%82%D1%8B+%D0%B4%D0%BB%D1%8F+%D1%84%D0%BE%D1%80%D1%82%D0%B5%D0%BF%D0%B8%D0%B0%D0%BD%D0%BE+%D0%BF%D0%BE%D0%BF%D1%83%D0%BB%D1%8F%D1%80%D0%BD%D1%8B%D1%85+%D0%BF%D0%B5%D1%81%D0%B5%D0%BD&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184471_dnevnik_po_praktike_v_prokurature_2015.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184361_skachat_maynkraft_152_na_russkom_yazuyke_na_kompyuter_besplatno.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183256_shema_podklyucheniya_gerkona.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000243f3.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x243F3 3556 bytes
font_01_sfnt_off00025176.bin
ff1770390a45fe46156f230451ea61d86d89fdf6f5fb49d7e84b2aaf9642928a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25176 14396 bytes
font_02_sfnt_off00027ebc.bin
7400a21e275de50c951ad7063bbf7f74cc200e40ff4573cb6ac77daf0c69be75		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27EBC 14532 bytes
font_03_sfnt_off0002a9ac.bin
6f3f83ac6afd1358d0e85a14638f65f0368686a9c318831747cdfee1990afdf8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A9AC 6628 bytes
font_04_sfnt_off0002bcbc.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BCBC 6084 bytes
font_05_sfnt_off0002cc51.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CC51 3752 bytes

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