Malicious PDF — malware analysis report

Static analysis result for SHA-256 9cece45140e1a39d…

MALICIOUS

PDF

188.9 KB Created: 2015-07-24 12:18:51 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 3535d8c58f552afbfc47025557970029 SHA-1: 5206e387c794e4732cd1b34feea71fc155183009 SHA-256: 9cece45140e1a39d7341d496698217c079c7c6fbbe20436f0f7cd3ff7d09f0da
90 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, botcraftman.ru. This indicates the document is designed to lure users to a malicious site, likely for phishing or malware delivery. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the embedded URL is sufficient evidence 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=%D0%A1%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BA%D0%B0%D1%80%D1%82%D1%8B+%D0%B4%D0%BB%D1%8F+%D0%B3%D0%B5%D1%80%D0%BE%D0%B5%D0%B2+%D0%BC%D0%B5%D1%87%D0%B0+%D0%B8+%D0%BC%D0%B0%D0%B3%D0%B8%D0%B8+5+%D0%BF%D0%BE%D0%B2%D0%B5%D0%BB%D0%B8%D1%82%D0%B5%D0%BB%D0%B8+%D0%BE%D1%80%D0%B4%D1%8B&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192387_belyanin_andrey_knigi_skachat_besplatno_fb2.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191032_asonika_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192068_skachat_simulyator_metro_moskvuy.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024e88.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24E88 3556 bytes
font_01_sfnt_off00025c0b.bin
d4c734231dfd74bb4a2a7376f81bf337c96cc928ca0f0f0bdefbacacc7ebcca7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25C0B 14932 bytes
font_02_sfnt_off00028ab7.bin
a1e52bb35342e169e674fad47a5d4d46de023fd0394a0f721dc4bfbaaf7d8343		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28AB7 14640 bytes
font_03_sfnt_off0002b5eb.bin
89bed7fdef8eb93b4f7e779f986d42483085d34ac6cde6f23ba0c09f606c769b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B5EB 6868 bytes
font_04_sfnt_off0002c9d0.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C9D0 6084 bytes
font_05_sfnt_off0002d965.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D965 3752 bytes

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