Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ce4a96ed6672571…

MALICIOUS

PDF

182.6 KB Created: 2015-08-05 17:09:46 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 0969e72937fc7d273672aa5da4d89e99 SHA-1: 1e83520ab7b946a3996f40ca532d4eacabfb5205 SHA-256: 7ce4a96ed6672571bcb4d0ba0f4406621ca238a5f851ad0ea8b44bb3cb196457
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL points to 'botcraftman.ru', which is identified as a malicious redirector. This suggests the document's primary purpose is to lure users to a compromised site.

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%D1%82%D0%B0+5+%D0%BD%D0%B0+%D0%BF%D1%81%D0%BF&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4306/4306285_poluchit_root_prava_na_android_41.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305465_skachat_forge_101221147_dlya_minecraft_172.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305493_vindovs_7_skachat_besplatno_russkaya_versiya_torrent_64_bit.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_off00023b3d.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23B3D 3556 bytes
font_01_sfnt_off000248c0.bin
3572308ae579aab4900437f8bbd75efa40acd648c93dfaae410ebd845bf37846		 pdf-font-stream PDF embedded font (sfnt) at offset 0x248C0 14692 bytes
font_02_sfnt_off00027627.bin
734a0e3b4f833bf65ef9aa9a76728ab53f12e51cd926d3a6291e3b266682b037		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27627 14640 bytes
font_03_sfnt_off0002a15a.bin
552c2591ef96052fc2af015afe71a57ae8b132730cce9b4cf2a54cdb9719dec1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A15A 5660 bytes
font_04_sfnt_off0002b0c8.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B0C8 6084 bytes
font_05_sfnt_off0002c05d.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C05D 3752 bytes

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