Malicious PDF — malware analysis report

Static analysis result for SHA-256 f23344e5f409c678…

MALICIOUS

PDF

185.8 KB Created: 2015-08-05 14:02:23 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 26737134fe2ee6324f9ab128988380fd SHA-1: da07dc22f6e0b5508b2801a96fb194d10162ebe4 SHA-256: f23344e5f409c67881262c7e1e6bc1ffd5928dbcf05e8594b10c060795266b1a
92 Risk Score

Malware Insights

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

The PDF 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, but the presence of the malicious URL is a strong indicator of malicious intent.

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=%D1%81%D1%85%D0%B5%D0%BC%D0%B0+%D0%BC%D0%BE%D1%89%D0%BD%D0%BE%D0%B3%D0%BE+%D1%80%D0%B5%D0%B3%D1%83%D0%BB%D0%B8%D1%80%D1%83%D0%B5%D0%BC%D0%BE%D0%B3%D0%BE+%D0%B1%D0%BB%D0%BE%D0%BA%D0%B0+%D0%BF%D0%B8%D1%82%D0%B0%D0%BD%D0%B8%D1%8F&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304692_skachat_besplatno_film_na_mobilnuyy_telefon.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304754_skachat_konfiguraciyu_1s_77_torgovlya_i_sklad.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304903_programmuy_dlya_blokirovki_yekrana_na_android.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000244fe.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x244FE 3556 bytes
font_01_sfnt_off00025281.bin
a4a612bc263810787485d9390a7514f6adb89aceb95917c6ec019ce8ac12ab46		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25281 14184 bytes
font_02_sfnt_off00027f0e.bin
0627de34e839737c03af0d9f30945bab194dadec018a1d0b90d3566f99dbb150		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27F0E 14532 bytes
font_03_sfnt_off0002a9fd.bin
a7a72b8361e9a380267f374885718d5546ca44caed336dff29dce584a4e58408		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A9FD 6704 bytes
font_04_sfnt_off0002bd33.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BD33 6084 bytes
font_05_sfnt_off0002ccc8.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CCC8 3752 bytes

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