Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a2330efe86c1079…

MALICIOUS

PDF

186.1 KB Created: 2015-07-24 04:54:45 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 6173f31453a6645660f34981f5af975a SHA-1: 106efc2bfcff4e9b97fbf1809c613ee0e97b19b7 SHA-256: 0a2330efe86c1079fa903add0bac841c5695a37b21cf51ef0108a79d44a9e777
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, indicating an attempt to lure the user to a harmful site. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, but the embedded URL is sufficient evidence of malicious intent.

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=Pci+%D1%88%D0%B8%D0%BD%D0%B0+0+%D1%83%D1%81%D1%82%D1%80%D0%BE%D0%B9%D1%81%D1%82%D0%B2%D0%BE+31+%D1%84%D1%83%D0%BD%D0%BA%D1%86%D0%B8%D1%8F+3+%D0%B4%D1%80%D0%B0%D0%B9%D0%B2%D0%B5%D1%80&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185296_allshare_samsung_skachat_dlya_mac_os.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185090_skachat_binarnuyy_fayl_su.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184491_maykrosoft_ofis_2010_skachat_besplatno_russkaya_versiya_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_off0002429c.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2429C 3556 bytes
font_01_sfnt_off0002501f.bin
f60e1f3b2d1ab3115dc9fb8ab378592ade8179f663e97c1fccff06610ee30a82		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2501F 15004 bytes
font_02_sfnt_off00027e6b.bin
aa9cd5e5d5a67a47c3f8217ad02f5cc2ebb6a90a75153aa7741155eae103855e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27E6B 14664 bytes
font_03_sfnt_off0002a94d.bin
7ea5d540073d5cf2c0871ba5d9f3dfaee6e825513b9b575682f080e9a810069d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A94D 7260 bytes
font_04_sfnt_off0002be7c.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BE7C 6084 bytes
font_05_sfnt_off0002ce11.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CE11 3752 bytes

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