Malicious PDF — malware analysis report

Static analysis result for SHA-256 82d1e0791134c826…

MALICIOUS

PDF

188.0 KB Created: 2015-07-26 17:22:09 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: efbc7a95e1d3cf8a8e8ebbe25c9c5533 SHA-1: d74e5b38051441ea5542175c44e499b0446c6ae9 SHA-256: 82d1e0791134c826ac433c1a821af6e2473441c6ef7884588fc7740c10b8f0e0
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document was flagged by a machine learning classifier and contains a link to a known malicious redirector. This suggests the document is designed to lure users to a malicious website, likely for phishing or malware distribution. No scripts were extracted, but the presence of a malicious URL is a strong indicator 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=%D0%9C%D0%BE%D1%80%D1%81%D0%BA%D0%BE%D0%B9+%D0%B0%D1%81%D1%82%D1%80%D0%BE%D0%BD%D0%BE%D0%BC%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%B8%D0%B9+%D0%B5%D0%B6%D0%B5%D0%B3%D0%BE%D0%B4%D0%BD%D0%B8%D0%BA+2013+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4196/4196463_philips_connect_skachat_besplatno.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4203/4203712_windows_vista_home_basic_licenziya_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4194/4194616_skachat_knigu_kriminalnuye_voynuy_izhevska.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_off00024a9b.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24A9B 3556 bytes
font_01_sfnt_off0002581e.bin
72dd796e92683c09cb6665db8ecd5ec7d295d25784e73e2431dbca961251d2ba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2581E 14804 bytes
font_02_sfnt_off0002861c.bin
bc9c7ae0ac8a7b82b84e57718bde98fd366e067727d1dab5b87b6f9905153e7d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2861C 14468 bytes
font_03_sfnt_off0002b0c6.bin
4a1a74b532d1c5be8cb8916266c846539b5d520927cd95cea35e995e4ac9259c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B0C6 7308 bytes
font_04_sfnt_off0002c624.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C624 6084 bytes
font_05_sfnt_off0002d5b9.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D5B9 3752 bytes

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