Malicious PDF — malware analysis report

Static analysis result for SHA-256 5eeb5a768ca8f80d…

MALICIOUS

PDF

186.8 KB Created: 2015-08-05 14:28:53 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: a761f714a5f0a837e6525c2ba9a1c241 SHA-1: a51eb317cf5af54bed9f1652c3d72b140b3261a4 SHA-256: 5eeb5a768ca8f80d3bec61ec1cf289a0b8be21a487107f3334fdb48875391b05
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. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the heuristic firings suggest a malicious intent to redirect the user, likely for phishing or malware delivery.

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%B4%D0%BE%D0%B3%D0%BE%D0%B2%D0%BE%D1%80+%D0%BC%D0%B0%D1%82%D0%B5%D1%80%D0%B8%D0%B0%D0%BB%D1%8C%D0%BD%D0%BE%D0%B9+%D0%BE%D1%82%D0%B2%D0%B5%D1%82%D1%81%D1%82%D0%B2%D0%B5%D0%BD%D0%BD%D0%BE%D1%81%D1%82%D0%B8+%D1%81+%D0%B2%D0%BE%D0%B4%D0%B8%D1%82%D0%B5%D0%BB%D0%B5%D0%BC&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305105_goluye_na_scene_teatra_video.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4300/4300234_solidworks_2011_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304652_skachat_drayvera_windows_7.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_off00024920.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24920 3556 bytes
font_01_sfnt_off000256a3.bin
c6aa517c2f9b7c8d46e792579cb41efd6d2781a8dcfc008b0e6bfd28de687bdc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x256A3 14576 bytes
font_02_sfnt_off00028443.bin
dde8cb3db78f49492d397de1013a074ab9c596bc0508faa33f94bd64189db0ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28443 14468 bytes
font_03_sfnt_off0002aef6.bin
a1006ebda2b6c88c7a858a32c833c3dcb78e355fbd9935d024b4b1e386d82a2d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AEF6 6544 bytes
font_04_sfnt_off0002c190.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C190 6084 bytes
font_05_sfnt_off0002d125.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D125 3752 bytes

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