Malicious PDF — malware analysis report

Static analysis result for SHA-256 f709ee102f7b5cf3…

MALICIOUS

PDF

185.9 KB Created: 2015-08-06 11:29:49 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 1b6672b8e7f4441a4534183bdb471911 SHA-1: af7a7e44c6ad0f45d460e5bbb40646f35135c36e SHA-256: f709ee102f7b5cf323c81813b49eb12c35cdf3b9263f6295f2e33dc150667c4b
90 Risk Score

Malware Insights

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

The PDF 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.

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%B2%D0%B8%D0%BD%D0%B4%D0%BE%D0%B2%D1%81+8+%D1%81+%D0%BE%D1%84%D0%B8%D1%86%D0%B8%D0%B0%D0%BB%D1%8C%D0%BD%D0%BE%D0%B3%D0%BE+%D1%81%D0%B0%D0%B9%D1%82%D0%B0&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4308/4308216_pesn_lda_i_plameni_vse_knigi_skachat_fb2.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4309/4309983_skachat_filmuy_besplatno_cherez_torrent_viy_2015.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305153_pevica_yuta_pesnya_lyubimuyy_moy_skachat_besplatno.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002444f.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2444F 3556 bytes
font_01_sfnt_off000251d2.bin
ed2ebe1fb0115e313929307b60bcd316febb6924408645ec49751b1f409e7c53		 pdf-font-stream PDF embedded font (sfnt) at offset 0x251D2 14376 bytes
font_02_sfnt_off00027f49.bin
d5d8a66c54d88b1fd3e9751d1946ec7768e13949c664bd33b207189c6d131484		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27F49 14468 bytes
font_03_sfnt_off0002a9fc.bin
c08c33e58c170df2c10ffb76ab5df5b993ab7f7980cd726b31b9384b7d72cfef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A9FC 6836 bytes
font_04_sfnt_off0002bda9.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BDA9 6084 bytes
font_05_sfnt_off0002cd3e.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CD3E 3752 bytes

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