Analysis
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max time kernel
1798s -
max time network
1798s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
30-06-2024 05:21
Behavioral task
behavioral1
Sample
XClient.exe
Resource
win11-20240508-en
General
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Target
XClient.exe
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Size
73KB
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MD5
b8b591cdf24497b0014caa76b4c42727
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SHA1
f4337b4a18e1664eadccd88f94743b9b40eaba1d
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SHA256
1136793c68ab82351f88cf0d385c56b96907b7bbf019337646cec294f61b9309
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SHA512
3775d6714091704ee1597c75a97cf3621c29365b6fc4ae87eae9f380fae1d18db6af2c080fbdc78f77c25c04a36c44ec1327f514eef423fc9a842b44ace65bef
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SSDEEP
1536:Uk3l8IOb4GgTt7NVKWr4b1UZEi/r6ye5pb+XOAL3X6+WwNK:Uk3iIOqT3r4b1UZhW5pb+OAjX6+WwNK
Malware Config
Extracted
xworm
147.185.221.20:41205
192.168.1.11:41205
field-clark.gl.at.ply.gg:41205
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Install_directory
%AppData%
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install_file
XClient.exe
Signatures
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Detect Xworm Payload 2 IoCs
Processes:
resource yara_rule behavioral1/memory/1816-1-0x0000000000A50000-0x0000000000A68000-memory.dmp family_xworm C:\Users\Admin\AppData\Roaming\XClient.exe family_xworm -
Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepid process 3000 powershell.exe 3276 powershell.exe 3816 powershell.exe 772 powershell.exe -
Drops startup file 2 IoCs
Processes:
XClient.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk XClient.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk XClient.exe -
Executes dropped EXE 30 IoCs
Processes:
XClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exepid process 2396 XClient.exe 1432 XClient.exe 5020 XClient.exe 4876 XClient.exe 4444 XClient.exe 276 XClient.exe 2560 XClient.exe 1868 XClient.exe 4260 XClient.exe 936 XClient.exe 5096 XClient.exe 736 XClient.exe 4980 XClient.exe 4828 XClient.exe 908 XClient.exe 3624 XClient.exe 2172 XClient.exe 3232 XClient.exe 1452 XClient.exe 4048 XClient.exe 352 XClient.exe 1996 XClient.exe 428 XClient.exe 2408 XClient.exe 2652 XClient.exe 4564 XClient.exe 3868 XClient.exe 1916 XClient.exe 424 XClient.exe 340 XClient.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
XClient.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000\Software\Microsoft\Windows\CurrentVersion\Run\XClient = "C:\\Users\\Admin\\AppData\\Roaming\\XClient.exe" XClient.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 1 ip-api.com -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Modifies registry class 1 IoCs
Processes:
MiniSearchHost.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-2457560273-69882387-977367775-1000_Classes\Local Settings\MuiCache MiniSearchHost.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepid process 3000 powershell.exe 3000 powershell.exe 3276 powershell.exe 3276 powershell.exe 3816 powershell.exe 3816 powershell.exe 772 powershell.exe 772 powershell.exe -
Suspicious use of AdjustPrivilegeToken 36 IoCs
Processes:
XClient.exepowershell.exepowershell.exepowershell.exepowershell.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exedescription pid process Token: SeDebugPrivilege 1816 XClient.exe Token: SeDebugPrivilege 3000 powershell.exe Token: SeDebugPrivilege 3276 powershell.exe Token: SeDebugPrivilege 3816 powershell.exe Token: SeDebugPrivilege 772 powershell.exe Token: SeDebugPrivilege 1816 XClient.exe Token: SeDebugPrivilege 2396 XClient.exe Token: SeDebugPrivilege 1432 XClient.exe Token: SeDebugPrivilege 5020 XClient.exe Token: SeDebugPrivilege 4876 XClient.exe Token: SeDebugPrivilege 4444 XClient.exe Token: SeDebugPrivilege 276 XClient.exe Token: SeDebugPrivilege 2560 XClient.exe Token: SeDebugPrivilege 1868 XClient.exe Token: SeDebugPrivilege 4260 XClient.exe Token: SeDebugPrivilege 936 XClient.exe Token: SeDebugPrivilege 5096 XClient.exe Token: SeDebugPrivilege 736 XClient.exe Token: SeDebugPrivilege 4980 XClient.exe Token: SeDebugPrivilege 4828 XClient.exe Token: SeDebugPrivilege 908 XClient.exe Token: SeDebugPrivilege 3624 XClient.exe Token: SeDebugPrivilege 2172 XClient.exe Token: SeDebugPrivilege 3232 XClient.exe Token: SeDebugPrivilege 1452 XClient.exe Token: SeDebugPrivilege 4048 XClient.exe Token: SeDebugPrivilege 352 XClient.exe Token: SeDebugPrivilege 1996 XClient.exe Token: SeDebugPrivilege 428 XClient.exe Token: SeDebugPrivilege 2408 XClient.exe Token: SeDebugPrivilege 2652 XClient.exe Token: SeDebugPrivilege 4564 XClient.exe Token: SeDebugPrivilege 3868 XClient.exe Token: SeDebugPrivilege 1916 XClient.exe Token: SeDebugPrivilege 424 XClient.exe Token: SeDebugPrivilege 340 XClient.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
MiniSearchHost.exepid process 1052 MiniSearchHost.exe -
Suspicious use of WriteProcessMemory 10 IoCs
Processes:
XClient.exedescription pid process target process PID 1816 wrote to memory of 3000 1816 XClient.exe powershell.exe PID 1816 wrote to memory of 3000 1816 XClient.exe powershell.exe PID 1816 wrote to memory of 3276 1816 XClient.exe powershell.exe PID 1816 wrote to memory of 3276 1816 XClient.exe powershell.exe PID 1816 wrote to memory of 3816 1816 XClient.exe powershell.exe PID 1816 wrote to memory of 3816 1816 XClient.exe powershell.exe PID 1816 wrote to memory of 772 1816 XClient.exe powershell.exe PID 1816 wrote to memory of 772 1816 XClient.exe powershell.exe PID 1816 wrote to memory of 2944 1816 XClient.exe schtasks.exe PID 1816 wrote to memory of 2944 1816 XClient.exe schtasks.exe -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\XClient.exe"C:\Users\Admin\AppData\Local\Temp\XClient.exe"1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\XClient.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\XClient.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\System32\schtasks.exe"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "XClient" /tr "C:\Users\Admin\AppData\Roaming\XClient.exe"2⤵
- Scheduled Task/Job: Scheduled Task
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C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\MiniSearchHost.exe"C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\MiniSearchHost.exe" -ServerName:MiniSearchUI.AppXj3y73at8fy1htwztzxs68sxx1v7cksp7.mca1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
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C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v13
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
1Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\XClient.exe.logFilesize
654B
MD52cbbb74b7da1f720b48ed31085cbd5b8
SHA179caa9a3ea8abe1b9c4326c3633da64a5f724964
SHA256e31b18f21621d9983bfdf1ea3e53884a9d58b8ffd79e0e5790da6f3a81a8b9d3
SHA512ecf02d5240e0c1c005d3ab393aa7eff62bd498c2db5905157e2bf6d29e1b663228a9583950842629d1a4caef404c8941a0c7799b1a3bd1eb890a09fdb7efcff9
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.logFilesize
2KB
MD5627073ee3ca9676911bee35548eff2b8
SHA14c4b68c65e2cab9864b51167d710aa29ebdcff2e
SHA25685b280a39fc31ba1e15fb06102a05b8405ff3b82feb181d4170f04e466dd647c
SHA5123c5f6c03e253b83c57e8d6f0334187dbdcdf4fa549eecd36cbc1322dca6d3ca891dc6a019c49ec2eafb88f82d0434299c31e4dfaab123acb42e0546218f311fb
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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractiveFilesize
944B
MD5d0a4a3b9a52b8fe3b019f6cd0ef3dad6
SHA1fed70ce7834c3b97edbd078eccda1e5effa527cd
SHA25621942e513f223fdad778348fbb20617dd29f986bccd87824c0ae7f15649f3f31
SHA5121a66f837b4e7fb6346d0500aeacb44902fb8a239bce23416271263eba46fddae58a17075e188ae43eb516c841e02c87e32ebd73256c7cc2c0713d00c35f1761b
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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractiveFilesize
944B
MD5906523560f8af295fe0b398799658002
SHA1b6b3d1f077ae0c39ac71d138630744856c0e424d
SHA2569f1750afbd8fd87ce27d8ecb32a9dfc9247ca360055a34fb25780c3685995ced
SHA5124dacd67d05b3648ce9ec59833aeca1c4683e25a8c0ab13297bede5168487e3c9a0608b9c93bb4e3baa2bd3a5414672f62c55b7386813d814e2cb44cd926f566b
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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractiveFilesize
944B
MD58b1394bd98c93d68bb4151a8c8c4015b
SHA13c5695c58a2186c1a13e70d8de9343f660429a91
SHA2563d46aa2ace9880ec7c1eb00581078beb3ca2107f343654aa5d5e250c97bf67d8
SHA512b7fe198d72b322dd2b2badf038821af9ceccae8b506f7475d8c253ea40aef9b0ba50dae223d5251d72a14aec81d025d394d3277576125d03f3e4ec393459a607
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C:\Users\Admin\AppData\Local\Packages\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\TempState\SearchHoverUnifiedTileModelCache.datFilesize
10KB
MD5a71ab244d565671f741686cb2c5ed11b
SHA1b6e766a85f1f878d512f752df2dd4873971755e2
SHA25606a5716962f3b50a8aa3acd30e33d6c75664465c3d795196ad6dce5e33a80faa
SHA5120826c8e52b0f5dbcbda745f06390fd59ce9eee8e0e845cdb007f4a97b19065f2544ca63226b34d361adf9e1cf26644672abfe5dcfd75651cd2aeb1ae27f16f84
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C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_vdu2zuyg.urh.ps1Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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C:\Users\Admin\AppData\Roaming\XClient.exeFilesize
73KB
MD5b8b591cdf24497b0014caa76b4c42727
SHA1f4337b4a18e1664eadccd88f94743b9b40eaba1d
SHA2561136793c68ab82351f88cf0d385c56b96907b7bbf019337646cec294f61b9309
SHA5123775d6714091704ee1597c75a97cf3621c29365b6fc4ae87eae9f380fae1d18db6af2c080fbdc78f77c25c04a36c44ec1327f514eef423fc9a842b44ace65bef
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memory/1816-9-0x00007FFEDA370000-0x00007FFEDAE32000-memory.dmpFilesize
10.8MB
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memory/1816-0-0x00007FFEDA373000-0x00007FFEDA375000-memory.dmpFilesize
8KB
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memory/1816-56-0x00007FFEDA370000-0x00007FFEDAE32000-memory.dmpFilesize
10.8MB
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memory/1816-1-0x0000000000A50000-0x0000000000A68000-memory.dmpFilesize
96KB
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memory/3000-10-0x00000229C1770000-0x00000229C1792000-memory.dmpFilesize
136KB