Malicious PDF — malware analysis report

Static analysis result for SHA-256 21446eef3473d16a…

MALICIOUS

PDF

185.4 KB Created: 2015-07-24 11:44:00 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: e0965d58c7735873e0120ba51ff6dda1 SHA-1: f09a17ea84639a68def87d291a3a0be1e2444afd SHA-256: 21446eef3473d16a84ed976e5e4963cb131f1f037d250723200c4eeac4c9a5c4
92 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector URL, indicating an attempt to lure the user to a harmful site. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, and the document body was not sufficiently readable to provide further context.

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=solidworks+portable+%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://img1.liveinternet.ru/images/attach/c/5//4185/4185643_licevaya_kartochka_avtomobilya_obrazec.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4187/4187788_adobe_flash_cs6_skachat_torrent_russkaya_versiya.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4189/4189828_otvetuy_na_egye_po_geografii_2015_26_maya.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a660.bin
8d6614123d484de02b3a532f2c6c83d6ec54057edbec4fe4c37dd1eaaa42355b		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A660 7392 bytes
font_00_sfnt_off00023dff.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23DFF 3556 bytes
font_01_sfnt_off00024b82.bin
03e04a745b2a443973889e4867585b6f7dafa33ecf6c5e9886e74365cf2a4b5e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24B82 15036 bytes
font_02_sfnt_off00027a04.bin
fb6f0bcb6d0bb05bfaeaf7b305a1596550fb9384678c5489922a8e01f709f669		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27A04 14996 bytes
font_04_sfnt_off0002bbf6.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BBF6 6084 bytes
font_05_sfnt_off0002cb8b.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CB8B 3752 bytes

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