Malicious PDF — malware analysis report

Static analysis result for SHA-256 48126979d3553e16…

MALICIOUS

PDF

185.0 KB Created: 2015-08-08 12:24:24 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 2e3f601482fee8c7c410d7820280a853 SHA-1: f9a8928211dffb837a7775f4cb4670f2584119d1 SHA-256: 48126979d3553e1638d5dffbcfea8d02148984094ccd5ade5a95362245082570
90 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector infrastructure. The ML classifier also flagged this PDF with high confidence. The embedded URL `http://botcraftman.ru/?lip&keyword=%D0%A2%D0%B5%D0%BA%D1%81%D1%82%D1%8B+%D0%B4%D0%BB%D1%8F+%D1%81%D0%BF%D0%B8%D1%81%D1%8B%D0%B2%D0%B0%D0%BD%D0%B8%D1%8F+1+%D0%BA%D0%BB%D0%B0%D1%81%D1%81+%D0%BF%D0%BE+%D1%84%D0%B3%D0%BE%D1%81&charset=utf-8` is the primary indicator of malicious intent, likely serving as a lure to a phishing site or a download host for further malware. No scripts were extracted from this sample.

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%A2%D0%B5%D0%BA%D1%81%D1%82%D1%8B+%D0%B4%D0%BB%D1%8F+%D1%81%D0%BF%D0%B8%D1%81%D1%8B%D0%B2%D0%B0%D0%BD%D0%B8%D1%8F+1+%D0%BA%D0%BB%D0%B0%D1%81%D1%81+%D0%BF%D0%BE+%D1%84%D0%B3%D0%BE%D1%81&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383725_knigi_fb2_skachat_besplatno_klassika.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4387/4387520_skachat_gta_san_andreas_yandeks_narod.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4390/4390069_koporskiy_chay_recept.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000240e9.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x240E9 3556 bytes
font_01_sfnt_off00024e6c.bin
8397e5abc4e236380b167146f3d4735b4e662fd4670b59d562968a946308c6b3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24E6C 14744 bytes
font_02_sfnt_off00027c28.bin
dde8cb3db78f49492d397de1013a074ab9c596bc0508faa33f94bd64189db0ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27C28 14468 bytes
font_03_sfnt_off0002a6db.bin
0f9677399a780475b54f20a7bb29ac25f4fcdd23cc78085911a86d7592d36b8a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A6DB 6720 bytes
font_04_sfnt_off0002ba1d.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BA1D 6084 bytes
font_05_sfnt_off0002c9b2.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C9B2 3752 bytes

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