Malicious PDF — malware analysis report

Static analysis result for SHA-256 148a56d1c7fe0787…

MALICIOUS

PDF

185.4 KB Created: 2015-07-24 10:46:33 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 820cdda15b5a6221f2c2cfe0d6a9d61e SHA-1: 019fff6e1301bb580eac4f2f2dcd6a0e25b0b4d3 SHA-256: 148a56d1c7fe078730156145f2198f1f0d8e03c4e864e49bc4efec6b3df82740
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains an embedded URL that is flagged as a malicious redirector. The ML classifier also strongly indicated maliciousness. The primary IOC is the malicious URL, which is likely used to host a second-stage payload or phishing page.

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%A1%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B4%D1%80%D0%B0%D0%B9%D0%B2%D0%B5%D1%80%D0%B0+%D0%B4%D0%BB%D1%8F+%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE%D0%BA%D0%B0%D1%80%D1%82%D1%8B+ati+radeon+2100&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4187/4187700_gromkie_ringtonuy_na_telefon_proslushat_i_skachat_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184910_skachat_fifa_10_ukrainskaya_liga_cherez_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4189/4189954_spin_tires_2009_polnaya_versiya_skachat_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_off00024058.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24058 3556 bytes
font_01_sfnt_off00024ddb.bin
78f8c199e5ff993b97f25749b370af8aca674627281c4bfa9cf465b075d9f0bc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24DDB 14296 bytes
font_02_sfnt_off00027a35.bin
06be7299fa88d4c46a93b14bd8ad2f3868482c7d65be2d529931f8a0a8ed0958		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27A35 14576 bytes
font_03_sfnt_off0002a547.bin
52ef7592f871c665fa6b070b47d4936c310a4888d7552323b0c6149c7e8ddf28		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A547 7688 bytes
font_04_sfnt_off0002bbee.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BBEE 6084 bytes
font_05_sfnt_off0002cb83.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CB83 3752 bytes

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