Malicious PDF — malware analysis report

Static analysis result for SHA-256 f215cf3c3597dfd9…

MALICIOUS

PDF

187.6 KB Created: 2015-08-08 11:36:48 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: ebc31cd322606a896e5bb2e81ea9eac1 SHA-1: d2b1d71088d043d6a590be8275266f4ebea951e1 SHA-256: f215cf3c3597dfd9b1388c44f923d1b0dfbf72847f4ec600999be9058ce1fdd3
92 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 0.9980

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%B5%D0%BB%D0%B5%D0%BD%D0%B0+%D0%BC%D0%B8%D1%85%D0%B0%D0%BB%D0%BA%D0%BE%D0%B2%D0%B0+%D0%BA%D0%BE%D0%BC%D0%BD%D0%B0%D1%82%D0%B0+%D1%81%D1%82%D0%B0%D1%80%D0%B8%D0%BD%D0%BD%D1%8B%D1%85+%D0%BA%D0%BB%D1%8E%D1%87%D0%B5%D0%B9+%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://img1.liveinternet.ru/images/attach/c/6//4385/4385123_chituy_na_narodnaya_solyanka_2011_dmx_edition.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385382_skachat_igru_konstantin.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4386/4386901_rust_oficialnuyy_sayt_na_russkom.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000249f0.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x249F0 3556 bytes
font_01_sfnt_off00025773.bin
3c1e0feb209afb36a70b9e65042bfb8a3f401b4008cf8e2250636e07c7ba069c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25773 14512 bytes
font_02_sfnt_off00028520.bin
7f60384d824c0856e76636ddb0cd396eb113eae2b5df48abe5d4be4dd4dd1b7a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28520 14532 bytes
font_03_sfnt_off0002b011.bin
f12340f27bf7c956bd6c80e58c0239dddca0a3168f454cdf0aad311a63b7cbe6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B011 7076 bytes
font_04_sfnt_off0002c47d.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C47D 6084 bytes
font_05_sfnt_off0002d412.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D412 3752 bytes

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