Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3c87d08175cd232…

MALICIOUS

PDF

183.2 KB Created: 2015-07-24 03:25:24 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 2e8d3fb8e58ea8593865fa810cfddd6a SHA-1: 678bc47a49598ac1e66cae7aae00177177dd6679 SHA-256: b3c87d08175cd232d38ca1ebc2f120c32d91fe1eda209c6ef2eb223b3e296536
90 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector infrastructure at http://botcraftman.ru/. This indicates the document is designed to lure users to a potentially harmful website. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, and the document body was not parsable.

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%B0%D0%B8%D0%BD%D1%81+%D1%80%D0%BE%D0%B2+4+%D0%BA%D0%BE%D0%B4%D1%8B&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185625_vtoraya_svadba_skachat_cherez_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4186/4186785_skachat_albom_detskih_pesen_cherez_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185267_volfenshtayn_2015_prohozhdenie.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023ca4.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23CA4 3556 bytes
font_01_sfnt_off00024a27.bin
0d3467fc1c1dfc1e89fbd31cc19b0fef924cfbb3472f12831331d83e5d30a3de		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24A27 14128 bytes
font_02_sfnt_off0002767f.bin
0d6c49bcbef1f65ca5e96f92b5d88c62510c2b9160c1e25cb4b3e80a774467e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2767F 14468 bytes
font_03_sfnt_off0002a132.bin
5256884e8177df0e97ced90417b6795da34caaa9a97413cd0d27af0dfb897057		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A132 6288 bytes
font_04_sfnt_off0002b2f7.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B2F7 6084 bytes
font_05_sfnt_off0002c28c.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C28C 3752 bytes

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