Malicious PDF — malware analysis report

Static analysis result for SHA-256 6394f9d4321de8a6…

MALICIOUS

PDF

184.9 KB Created: 2015-07-25 00:21:09 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: cec5fd6d9e3d810b3a61a1a0a8ca914c SHA-1: 7e55e966c67505115a30ef8dd5bd9d555c89b009 SHA-256: 6394f9d4321de8a6e61cfc2f79022b950563ebb85c3b36671b9f1de956171d26
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged as malicious by an ML classifier and contains a link to a known malicious redirector infrastructure. This suggests the document is designed to lure users to a harmful website, likely for phishing or malware delivery. No scripts were extracted, but the presence of a 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%80%D1%83%D1%81%D1%8C+2+total+war+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4190/4190942_chat_ruletka_anonimnuyy.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4189/4189920_kuda_postupit_posle_9_klassa_v_vologde.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4190/4190221_skachat_igru_tdp4_proekt_tmuy_na_kompyuter_cherez_torrent.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_off00023f05.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23F05 3556 bytes
font_01_sfnt_off00024c88.bin
bd2abe7838ced7dfcde91a3522252b64ef5be74f97e5d5fdc2b20c3def496867		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24C88 14740 bytes
font_02_sfnt_off00027a94.bin
75f53113f2c23290f6b5448332b9afa8f753c8baa4b8e0dcfb0e696d951ca16e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27A94 14652 bytes
font_03_sfnt_off0002a5df.bin
d045a2028168ba942f32b862eb1b65f6cf729bfc1aa1a5463701bd5be1cd2f80		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A5DF 6800 bytes
font_04_sfnt_off0002b99f.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B99F 6084 bytes
font_05_sfnt_off0002c934.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C934 3752 bytes

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