Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9f4399f6fd4eaaa…

MALICIOUS

PDF

186.6 KB Created: 2015-07-25 17:53:55 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: a3e2a344ed469c497deae96deccd851f SHA-1: 1c277f5801856774b995fa98668a1e9086bcc78a SHA-256: a9f4399f6fd4eaaaadf8ccfa36e94743c057efef90c64f0d6c240970a7e8128e
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a direct link to a known malicious redirector. The link, http://botcraftman.ru/?lip&keyword=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BC%D0%BE%D0%B4%D1%8B+%D0%BD%D0%B0+%D1%86%D0%B5%D1%80%D0%BC%D0%B5%D1%80+%D1%81%D0%B8%D0%BC%D1%83%D0%BB%D1%8F%D1%82%D0%BE%D1%80+2009&charset=utf-8, is the primary indicator of malicious intent. This suggests the document is a lure to redirect users to a malicious site, likely for further exploitation or malware delivery.

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%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BC%D0%BE%D0%B4%D1%8B+%D0%BD%D0%B0+%D1%84%D0%B5%D1%80%D0%BC%D0%B5%D1%80+%D1%81%D0%B8%D0%BC%D1%83%D0%BB%D1%8F%D1%82%D0%BE%D1%80+2009&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191686_akkauntuy_maynkraft_za_15_rub.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4189/4189763_lodki_iz_faneruy_chertezhi.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192002_solidworks_2015_sp40_premium_edition_skachat_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024415.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24415 3556 bytes
font_01_sfnt_off00025198.bin
f00e916f56da3b6589c73fb94a039e5ade4a49bc85dac2de99da8f2f047d393b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25198 15048 bytes
font_02_sfnt_off000280a0.bin
48f84fcbf1c2f2f63a64e10bcf88d9bfd7d6068d6c91b483338e4fc3ceacca09		 pdf-font-stream PDF embedded font (sfnt) at offset 0x280A0 14468 bytes
font_03_sfnt_off0002ab55.bin
6c8587882bdce7a5e5b8bc2280f4d1734a254f9a1468aa0f52813b115c6eda67		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AB55 7240 bytes
font_04_sfnt_off0002c09b.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C09B 6084 bytes
font_05_sfnt_off0002d030.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D030 3752 bytes

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