Malicious PDF — malware analysis report

Static analysis result for SHA-256 64e409e35eaa42b4…

MALICIOUS

PDF

185.1 KB Created: 2015-07-24 00:19:11 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: f703b81ea735895d889f55a4fe0cdb7b SHA-1: 37901247fcb89979441cfc275193587fcfab5c5b SHA-256: 64e409e35eaa42b42d32bbf1c4187ccdfd9c86f601f9bd03ce1189b23a1c0194
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains an embedded link identified as a malicious redirector. This link likely serves to lure the user to a compromised or malicious website, potentially for further exploitation or credential harvesting. The ML classifier also strongly indicated maliciousness.

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%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D0%B0+%D0%B4%D0%BB%D1%8F+%D0%BF%D1%80%D0%B8%D0%BC%D0%B5%D1%80%D0%BA%D0%B8+%D0%BE%D0%B4%D0%B5%D0%B6%D0%B4%D1%8B&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185354_luntik_novuye_serii_2013_skachat_torrent_besplatno.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185402_telefonnuyy_spravochnik_goroda_ustilimska.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185557_tablica_grafik_rabotuy_na_mesyac.pdf
    • http://www.microsoft.com/typography/fonts/
    • http://www.microsoft.com/typography/fonts/You

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002438c.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2438C 3556 bytes
font_01_sfnt_off0002510f.bin
c273cc20ad2be2e3b1001ca20b1dd07b6a05ce70b6bae318e98986037f9eb55b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2510F 14120 bytes
font_02_sfnt_off00027d69.bin
b79d56b22a3d37edc4793e81e28af2d51416733c1decb699be69ae0b1e9dff38		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27D69 14468 bytes
font_03_sfnt_off0002a818.bin
4f261ab1479346efcde53cde025596f38028d1ff42cf7fd81ae4c15c161c3754		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A818 6560 bytes
font_04_sfnt_off0002babb.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BABB 6084 bytes
font_05_sfnt_off0002ca50.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CA50 3752 bytes

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