Ross Wolf
a0d3b4bd23
Co-Authored-By: Brent Murphy <56412096+bm11100@users.noreply.github.com> Co-Authored-By: Daniel Stepanic <57736958+dstepanic17@users.noreply.github.com> Co-Authored-By: David French <56409778+threat-punter@users.noreply.github.com> Co-Authored-By: Joe Desimone <56411054+joe-desimone@users.noreply.github.com> Co-Authored-By: Justin Ibarra <brokensound77@users.noreply.github.com>
48 lines
1.4 KiB
Python
48 lines
1.4 KiB
Python
# Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
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# or more contributor license agreements. Licensed under the Elastic License;
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# you may not use this file except in compliance with the Elastic License.
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# Name: Emulate Suspect MS Office Child Processes
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# RTA: suspect_office_children.py
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# ATT&CK: T1064
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# Description: Generates various children processes from emulated Office processes.
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import os
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import time
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from . import common
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@common.requires_os(common.WINDOWS)
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def main():
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common.log("MS Office unusual child process emulation")
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suspicious_apps = [
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"msiexec.exe /i blah /quiet",
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"powershell.exe exit",
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"wscript.exe //b",
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]
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cmd_path = "c:\\windows\\system32\\cmd.exe"
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browser_path = os.path.abspath("firefox.exe")
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common.copy_file(cmd_path, browser_path)
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for office_app in ["winword.exe", "excel.exe"]:
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common.log("Emulating %s" % office_app)
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office_path = os.path.abspath(office_app)
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common.copy_file(cmd_path, office_path)
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for command in suspicious_apps:
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common.execute('%s /c %s /c %s' % (office_path, browser_path, command), timeout=5, kill=True)
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common.log('Cleanup %s' % office_path)
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common.remove_file(office_path)
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common.log("Sleep 5 to allow processes to finish")
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time.sleep(5)
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common.log('Cleanup %s' % browser_path)
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common.remove_file(browser_path)
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if __name__ == "__main__":
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exit(main())
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