Malicious PDF — malware analysis report

Static analysis result for SHA-256 84fae64dd0a1161a…

MALICIOUS

PDF

184.6 KB Created: 2015-07-23 21:09:47 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: ba7e9e9113bd4228d52afde55271b967 SHA-1: ca9ce2ff0420dcfbe88da9d053a03ce7106fde46 SHA-256: 84fae64dd0a1161a707d556eaeb830a30c025bef6f4cb37e8426de3088d27173
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1566.002 Spearphishing Attachment T1071.001 Web Protocols

The PDF contains an embedded link to a known malicious redirector infrastructure. The ML classifier also flagged this PDF with high confidence. The presence of this malicious URL suggests the document is designed to lure users to a site that likely hosts further malicious content or phishing forms. No scripts were extracted from this sample, limiting the analysis of its specific payload delivery mechanism.

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=Gpedit+msc+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184535_dina_rubina_belaya_golubka_kordovuy_skachat_besplatno_fb2.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183180_lebedi_shema_vuyshivki_krestom.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184614_alena_kravchenko_videoshkola_igruy_na_gitare_skachat_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a582.bin
8bc42e058a04d3a0f975550829bf2f415ec90320ca25b892eb81e9abdb0d7ada		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A582 6640 bytes
font_00_sfnt_off00023ded.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23DED 3556 bytes
font_01_sfnt_off00024b70.bin
8c1d1029c8fde7c4e1e1504f08406ef8e00d6bbc9afc26f7144d9ba0c5ee37fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24B70 14568 bytes
font_02_sfnt_off00027982.bin
1f02f92ade4413b4c1b60a83a3f81f6a95cf90e4f83c1c978c35e08e1ba21d37		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27982 14892 bytes
font_04_sfnt_off0002b888.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B888 6084 bytes
font_05_sfnt_off0002c81d.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C81D 3752 bytes

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