Malicious PDF — malware analysis report

Static analysis result for SHA-256 15175da857b6aa6b…

MALICIOUS

PDF

186.7 KB Created: 2015-07-24 23:22:21 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 64756ad2301a719122a10c0b99f2a68e SHA-1: d3c75496c6a706f629199905a34509bab0ded0d2 SHA-256: 15175da857b6aa6b08259dabd9417338eea5edd8336c328a814405fd76d5ef0c
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to known malicious redirector infrastructure, indicating an attempt to lure the user to a harmful site. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the embedded URL is the primary 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%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BE%D1%81%D0%BA%D0%B0%D1%80+%D1%8D%D0%B4%D0%B8%D1%82%D0%BE%D1%80+%D0%B4%D0%BB%D1%8F+%D0%BC%D1%8B%D1%88%D0%B8+%D1%857+%D0%BE%D1%84%D0%B8%D1%86%D0%B8%D0%B0%D0%BB%D1%8C%D0%BD%D1%8B%D0%B9+%D1%81%D0%B0%D0%B9%D1%82&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184466_skachat_besplatno_vindovs_7_professionalnaya_64_bit.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184636_kod_na_tank_v_gta_5.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192021_farming_simulator_2015_skachat_torrent_russkaya_versiya.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_off00024508.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24508 3556 bytes
font_01_sfnt_off0002528b.bin
dc35a5f8c53ae5b1a877df6e0532fa15a87866697c8f20ad51bd4a1953ac5094		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2528B 14856 bytes
font_02_sfnt_off0002809f.bin
f6511fdcc3d48c792f1864e0dc5f917cd48fd6016433204727ad7dce7b64a80c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2809F 14632 bytes
font_03_sfnt_off0002abe5.bin
4b30e90eb6085c2d9cdf0e40ace56edf76d24868f219f7316b8984edf429c443		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2ABE5 7196 bytes
font_04_sfnt_off0002c0ea.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C0EA 6084 bytes
font_05_sfnt_off0002d07f.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D07F 3752 bytes

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