Malicious PDF — malware analysis report

Static analysis result for SHA-256 06be4d8396125ed5…

MALICIOUS

PDF

183.8 KB Created: 2015-07-25 02:16:45 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 8b62723fd1ecaa4b4944a734507f44f1 SHA-1: 7afbc9ae58de2ec46fa5abd7ac25b28c16c9bf52 SHA-256: 06be4d8396125ed587c870c78c73a19f9b87e9149aab25314df4f4a023d8f500
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that advertise cracked software, indicating a lure to trick users into downloading potentially malicious files. One of the embedded URLs, http://botcraftman.ru/, is flagged as a known malicious redirector. The ML classifier also strongly indicated maliciousness.

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=Ftclean+exe+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192878_saints_row_1_skachat_torrent_pc_na_russkom_2006.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192977_five_finger_death_punch_diskografiya_skachat_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4197/4197257_skachat_hotel_626_besplatno_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_off00023c60.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23C60 3556 bytes
font_01_sfnt_off000249e3.bin
f638d0111db4d21432887b66614c994da90c9ad0dfae1e145c033a44f5df9b3a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x249E3 14708 bytes
font_02_sfnt_off00027797.bin
fe3127a9481f2e4924a047940a8f6602134e31441c68e16efc8d4b2bf108be45		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27797 14692 bytes
font_03_sfnt_off0002a310.bin
9a38f05d86cddfd8f9e9fb8dfea8a458f22cd6ec5cd9e578bd9fc196bd7f8f3d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A310 6372 bytes
font_04_sfnt_off0002b535.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B535 6084 bytes
font_05_sfnt_off0002c4ca.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C4CA 3752 bytes

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