Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f9e99a32419c7b3…

MALICIOUS

PDF

185.5 KB Created: 2015-08-08 10:25:38 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 1aea6f2deb6d17f3f430551dd51904f2 SHA-1: a081adb4ea17cf500f6327ab784b63a535c4242d SHA-256: 0f9e99a32419c7b36000bed37e92a4e63831ecd664aa93d112b1d5a11aef15f4
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains an embedded link to a known malicious redirector, http://botcraftman.ru/. This heuristic firing, combined with the ML classifier's high confidence, indicates the document is designed to lure users to a malicious site. No scripts were extracted, but the presence of a malicious URL is a strong indicator of 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%B8%D0%B3%D1%80%D1%8B+%D0%BF%D1%80%D0%BE+%D0%BB%D0%BE%D1%88%D0%B0%D0%B4%D0%B5%D0%B9+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BD%D0%B0+%D0%BA%D0%BE%D0%BC%D0%BF%D1%8C%D1%8E%D1%82%D0%B5%D1%80&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384609_shkolnuye_albomuy_psd.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383912_pervuyy_poceluy_shema_vuyshivki.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383717_skachat_igru_chelovek_pauk_drug_ili_vrag_cherez_torrent.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_off00024420.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24420 3556 bytes
font_01_sfnt_off000251a3.bin
ba00a59788ad25e82028482ba8c87fea608a29d5024e0954dec70e7c37a7ec32		 pdf-font-stream PDF embedded font (sfnt) at offset 0x251A3 14052 bytes
font_02_sfnt_off00027dc8.bin
58cfc2e56f91ec3b51ff8a1ad9ca2bf4a05210a9b526b09c22d96a89e123c576		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27DC8 14520 bytes
font_03_sfnt_off0002a89a.bin
55283f8826137e69cb06fbaa3903e5b9471dad5f568fc66a9a34438b2e7bd3b0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A89A 6780 bytes
font_04_sfnt_off0002bc12.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BC12 6084 bytes
font_05_sfnt_off0002cba7.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CBA7 3752 bytes

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