Malicious PDF — malware analysis report

Static analysis result for SHA-256 14d4bbd2249ab855…

MALICIOUS

PDF

186.7 KB Created: 2015-08-08 11:46:26 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: e0ef977c7dd0402e5270897278066ed8 SHA-1: d8feedb071db27c0e0399e6c6485d8ea3db4aac9 SHA-256: 14d4bbd2249ab855f5ccca3e66fef022453dfeb635b823381d7373cf97a5fdf3
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link identified as a malicious redirector, which is designed to lead users to harmful websites. The document also advertises cracked software, suggesting a lure to entice clicks. The ML classifier strongly indicates malicious intent, and the embedded URL is the primary indicator of compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

Heuristics 3

  • 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.
  • PDF link farm advertises cracked/pirated software medium PDF_CRACKED_SOFTWARE_LURE
    PDF contains many clickable links whose targets use cracked-software, keygen, serial-key, or warez vocabulary. These are SEO-spam lure documents that rank for software-piracy searches and route users to fake 'crack' download pages distributing potentially-unwanted programs, adware, or droppers. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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%D1%82%D0%B0%D1%80+%D1%81%D0%B8%D0%BD%D0%B5%D0%BC%D0%B0+%D0%B0%D0%BB%D1%8C%D0%BC%D0%B5%D1%82%D1%8C%D0%B5%D0%B2%D1%81%D0%BA+%D1%80%D0%B0%D1%81%D0%BF%D0%B8%D1%81%D0%B0%D0%BD%D0%B8%D0%B5+%D1%84%D0%B8%D0%BB%D1%8C%D0%BC%D0%BE%D0%B2&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385740_ohotniki_za_demonami_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4386/4386912_yevrika_3_sezon_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4386/4386230_vosmidesyatuye_4_sezon_torrent_vse_serii.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_off00024636.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24636 3556 bytes
font_01_sfnt_off000253b9.bin
6d50e77d7c23d71620988c300af1f43ac51113eff6c2ba14ffb47b499ad1b63f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x253B9 15004 bytes
font_02_sfnt_off00028314.bin
dde8cb3db78f49492d397de1013a074ab9c596bc0508faa33f94bd64189db0ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28314 14468 bytes
font_03_sfnt_off0002adc7.bin
21097451bf247b4362aa7bf6f0f7081f717eca347e496fb9c605be3f54bdb61a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2ADC7 6660 bytes
font_04_sfnt_off0002c0ec.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C0EC 6084 bytes
font_05_sfnt_off0002d081.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D081 3752 bytes

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