Malicious PDF — malware analysis report

Static analysis result for SHA-256 c44857e809a3cc33…

MALICIOUS

PDF

186.9 KB Created: 2015-08-06 15:59:11 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: bad52df11fa241924457711b545039f5 SHA-1: 7664a3ce4839740bb3e724f1b3471eb456b2f72d SHA-256: c44857e809a3cc3320257f497b358f54683b655da61fd7891420a4ee4628fd09
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file 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. No scripts were extracted, and the document body was truncated, limiting further analysis of the exact lure.

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%B0%D0%BD%D1%82%D0%B8%D0%B2%D0%B8%D1%80%D1%83%D1%81+%D0%BA%D0%B0%D1%81%D0%BF%D0%B5%D1%80%D1%81%D0%BA%D0%BE%D0%B3%D0%BE+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%D0%BD%D0%B0+6+%D0%BC%D0%B5%D1%81%D1%8F%D1%86%D0%B5%D0%B2+%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/6//4306/4306988_call_of_duty_4_multiplayer_only_v17_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4307/4307523_microsoft_office_365.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4308/4308444_terminasova_yazuyk_i_mezhkulturnaya_kommunikaciya_skachat.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024784.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24784 3556 bytes
font_01_sfnt_off00025507.bin
8e4a9d8f46d2d9ade14401cf64c9bf3ae4180dd57ff43319dc2f13830bd6ccd5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25507 14640 bytes
font_02_sfnt_off00028272.bin
426ba1c2444564d56b65c3f7625fac8ddd7f3cd5f8f03af3fb0f694004da5b2f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28272 14468 bytes
font_03_sfnt_off0002ad29.bin
2be3d419d867552fb242be232a0dc5b2a8626caf9b335aed8d84477aaab91b59		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AD29 7096 bytes
font_04_sfnt_off0002c1cf.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C1CF 6084 bytes
font_05_sfnt_off0002d164.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D164 3752 bytes

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