Malicious PDF — malware analysis report

Static analysis result for SHA-256 f148ee6f8aaab3ee…

MALICIOUS

PDF

184.9 KB Created: 2015-07-27 08:54:06 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: e370de2c4f6695d702761b8700f58c4a SHA-1: f6f036b3d038ea47d5c2020e922727a7f23e44c3 SHA-256: f148ee6f8aaab3ee453c7613345b579010f8b6a3ebf9842523956ee99c95af1c
92 Risk Score

Malware Insights

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

The PDF was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL http://botcraftman.ru/... is a known malicious redirector, suggesting the document is designed to lure users to a harmful site. 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%B3%D0%B8%D0%B0+%D0%BF%D0%BE+%D0%BC%D0%B0%D1%82%D0%B5%D0%BC%D0%B0%D1%82%D0%B8%D0%BA%D0%B5+2015+%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/5//4186/4186784_glushanovskiy_aleksey_obitel_buranov_skachat_besplatno.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4223/4223723_skachat_programmu_dlya_vzloma_odnoklassnikov_na_android.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4202/4202746_yasin_sura_tekst_na_russkom_transkripciya.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000240b3.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x240B3 3556 bytes
font_01_sfnt_off00024e36.bin
f0764656ee36e8a3fd17ebbedc65919edc6975a604be3d4d1d9dd56f3f6ef9ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24E36 14664 bytes
font_02_sfnt_off00027c51.bin
b4e7262d3c265b9c03968570e6910e5029d70de81bf1212fa54e1ea61326de8e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27C51 14640 bytes
font_03_sfnt_off0002a788.bin
bef4538082a0f62c5ace9e0bdadfe4c1e1ca708022930eb388afae070a49440c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A788 6472 bytes
font_04_sfnt_off0002b9fa.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B9FA 6084 bytes
font_05_sfnt_off0002c98f.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C98F 3752 bytes

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