Analysis
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max time kernel
299s -
max time network
300s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
30-05-2024 20:07
Behavioral task
behavioral1
Sample
XClient.exe
Resource
win10v2004-20240426-en
General
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Target
XClient.exe
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Size
72KB
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MD5
dab9e10b713779e5a811a1c89ae6252a
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SHA1
fea8c8140c6b13fabdb258acb3a646c1a54e36be
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SHA256
e712b1e3a9313d86fce1ca310401f88e8fcda3c2b65ff9633613018bac09012f
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SHA512
ad6f6b0a0b1ce606964e1fa1ddd3ccef30fa2f90b1af3e57108b7a30aeb43aa02e64b407b519e1463597f4147f639eb1d09d4c0717127da8700d2998929b03fe
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SSDEEP
1536:XdqJfIiYkjEj1xFhI6mX1EgjbDhcb6rOFw2Uy:SlYJBjXkNjbDXOFwHy
Malware Config
Extracted
xworm
isbn-employee.gl.at.ply.gg:4328
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Install_directory
%AppData%
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install_file
XClient.exe
Signatures
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Detect Xworm Payload 1 IoCs
Processes:
resource yara_rule behavioral1/memory/4228-1-0x00000000003B0000-0x00000000003C8000-memory.dmp 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 3184 powershell.exe 1872 powershell.exe 3168 powershell.exe 2444 powershell.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
XClient.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\Control Panel\International\Geo\Nation XClient.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 -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
XClient.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\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 18 ip-api.com -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 9 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exeXClient.exepid process 3168 powershell.exe 3168 powershell.exe 2444 powershell.exe 2444 powershell.exe 3184 powershell.exe 3184 powershell.exe 1872 powershell.exe 1872 powershell.exe 4228 XClient.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
Processes:
XClient.exepowershell.exepowershell.exepowershell.exepowershell.exedescription pid process Token: SeDebugPrivilege 4228 XClient.exe Token: SeDebugPrivilege 3168 powershell.exe Token: SeDebugPrivilege 2444 powershell.exe Token: SeDebugPrivilege 3184 powershell.exe Token: SeDebugPrivilege 1872 powershell.exe Token: SeDebugPrivilege 4228 XClient.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
XClient.exepid process 4228 XClient.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
XClient.exedescription pid process target process PID 4228 wrote to memory of 3168 4228 XClient.exe powershell.exe PID 4228 wrote to memory of 3168 4228 XClient.exe powershell.exe PID 4228 wrote to memory of 2444 4228 XClient.exe powershell.exe PID 4228 wrote to memory of 2444 4228 XClient.exe powershell.exe PID 4228 wrote to memory of 3184 4228 XClient.exe powershell.exe PID 4228 wrote to memory of 3184 4228 XClient.exe powershell.exe PID 4228 wrote to memory of 1872 4228 XClient.exe powershell.exe PID 4228 wrote to memory of 1872 4228 XClient.exe powershell.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\XClient.exe"C:\Users\Admin\AppData\Local\Temp\XClient.exe"1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4228 -
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
PID:3168
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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
PID:2444
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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
PID:3184
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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
PID:1872
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C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding1⤵PID:4732
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2KB
MD5d85ba6ff808d9e5444a4b369f5bc2730
SHA131aa9d96590fff6981b315e0b391b575e4c0804a
SHA25684739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
SHA5128c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249
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Filesize
944B
MD56d42b6da621e8df5674e26b799c8e2aa
SHA1ab3ce1327ea1eeedb987ec823d5e0cb146bafa48
SHA2565ab6a1726f425c6d0158f55eb8d81754ddedd51e651aa0a899a29b7a58619c4c
SHA51253faffbda8a835bc1143e894c118c15901a5fd09cfc2224dd2f754c06dc794897315049a579b9a8382d4564f071576045aaaf824019b7139d939152dca38ce29
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Filesize
944B
MD534f595487e6bfd1d11c7de88ee50356a
SHA14caad088c15766cc0fa1f42009260e9a02f953bb
SHA2560f9a4b52e01cb051052228a55d0515911b7ef5a8db3cf925528c746df511424d
SHA51210976c5deaf9fac449e703e852c3b08d099f430de2d7c7b8e2525c35d63e28b890e5aab63feff9b20bca0aaf9f35a3ba411aee3fbeee9ea59f90ed25bd617a0b
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Filesize
944B
MD5a7cc007980e419d553568a106210549a
SHA1c03099706b75071f36c3962fcc60a22f197711e0
SHA256a5735921fc72189c8bf577f3911486cf031708dc8d6bc764fe3e593c0a053165
SHA512b9aaf29403c467daef80a1ae87478afc33b78f4e1ca16189557011bb83cf9b3e29a0f85c69fa209c45201fb28baca47d31756eee07b79c6312c506e8370f7666
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82