General
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Target
XClient.exe
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Size
43KB
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Sample
241110-b2ejrawkfw
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MD5
7e71f66eb4bd975fa6894f7be63d9de7
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SHA1
a0b6a69adffde7a5209498ce1656f0d406da9204
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SHA256
89055b8db329f28180bdd72d02227f175a46b79b470c5131e932d235104ab6e1
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SHA512
5a776de6708ffa802700febe9a6a1cd95cd907f8d435c7ea28644c3c31565e373223b8db05ca142cb5bdc0d13745fba03099edbfc2fe7f9095232a997cdf6bf1
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SSDEEP
768:vSniTSIuNNk3MO56kjBbvSevz5zbbTf8EmZPcBH6clOQhAGb:oiT9n6k5zbHf8PZP8H6OOQC8
Malware Config
Extracted
xworm
3.1
147.185.221.23:53631
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Install_directory
%AppData%
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install_file
USB.exe
Targets
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Target
XClient.exe
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Size
43KB
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MD5
7e71f66eb4bd975fa6894f7be63d9de7
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SHA1
a0b6a69adffde7a5209498ce1656f0d406da9204
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SHA256
89055b8db329f28180bdd72d02227f175a46b79b470c5131e932d235104ab6e1
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SHA512
5a776de6708ffa802700febe9a6a1cd95cd907f8d435c7ea28644c3c31565e373223b8db05ca142cb5bdc0d13745fba03099edbfc2fe7f9095232a997cdf6bf1
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SSDEEP
768:vSniTSIuNNk3MO56kjBbvSevz5zbbTf8EmZPcBH6clOQhAGb:oiT9n6k5zbHf8PZP8H6OOQC8
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Contains code to disable Windows Defender
A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.
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Detect Xworm Payload
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Xworm family
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Command and Scripting Interpreter: PowerShell
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
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Drops startup file
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Executes dropped EXE
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Adds Run key to start application
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Impair Defenses
1Disable or Modify Tools
1Modify Registry
3