Malicious PDF — malware analysis report

Static analysis result for SHA-256 a32eb1046b96c1dc…

MALICIOUS

PDF

184.8 KB Created: 2015-08-05 13:53:01 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: bbf2c01b4fc3e4a3d6577fd35ad24fcf SHA-1: 7dcd12f0de5a3b4eda84a6f7f966dd647f7279a9 SHA-256: a32eb1046b96c1dc6225af2eb4f998876077947ba203956cee9e112f8c6e54be
90 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The primary IOC is the malicious URL, which is likely used to funnel users to a malicious site. No scripts were extracted, and the document body was truncated, limiting further analysis of the specific lure.

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%9A%D0%B0%D0%BA+%D0%BE%D1%82%D0%BA%D1%80%D1%8B%D1%82%D1%8C+%D1%84%D0%B0%D0%B9%D0%BB+pkg+%D0%BD%D0%B0+windows&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304711_skachat_windows_xp_x64_sp3_originalnuyy_obraz_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304550_skachat_sims_3_internuy_cherez_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304694_avk5_2120_skachat_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a408.bin
5ce671d775090a1db796ffc33f9df10c895f6ebd526bf56c3c2b6d9aed1ae633		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A408 7344 bytes
font_00_sfnt_off00023e68.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23E68 3556 bytes
font_01_sfnt_off00024beb.bin
df0a1da2db4003fb04b7d52a303f658680a3c66bc69e571a58034c7267a880ff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24BEB 14388 bytes
font_02_sfnt_off0002791d.bin
7f04da1ac560a4b631c8cd71cb33d87a8a2bcc6faa7f1b5d4dcb0a6854103a7d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2791D 14536 bytes
font_04_sfnt_off0002b95b.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B95B 6084 bytes
font_05_sfnt_off0002c8f0.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C8F0 3752 bytes

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