Analysis
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max time kernel
117s -
max time network
155s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
30-05-2024 15:35
Behavioral task
behavioral1
Sample
8fa8e02a32db4626290b784d771e051ad9d12f396c4e95267d8b072835e81be3.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
8fa8e02a32db4626290b784d771e051ad9d12f396c4e95267d8b072835e81be3.exe
Resource
win10v2004-20240426-en
General
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Target
8fa8e02a32db4626290b784d771e051ad9d12f396c4e95267d8b072835e81be3.exe
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Size
39KB
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MD5
dfc191c2d6414fbefcda695fedcac614
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SHA1
a2f01a5c1aa6da85d2d3593b71b509f50a880367
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SHA256
8fa8e02a32db4626290b784d771e051ad9d12f396c4e95267d8b072835e81be3
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SHA512
59fd4f6d6384b3df8eb67b47477e0474053ca30dff6a4bcf057bb2f8fb2a8a57eb4c11d8308d410290d55cde3bb47dd654eef9a235787a3b3e86103e9dfff9f2
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SSDEEP
768:WG7+qmT8ztyh6pwDYvCL2v6hCuuJf27iJ1fFWPG9/T6OOwhbjib5:VfmT8ztyh6pwDnKwCuuJfBFv9/T6OOwY
Malware Config
Extracted
xworm
5.0
20.ip.gl.ply.gg:4219
sGAsjjcwpIJWoflZ
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Install_directory
%AppData%
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install_file
XClient.exe
Signatures
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Detect Xworm Payload 4 IoCs
Processes:
resource yara_rule behavioral1/memory/1544-1-0x00000000002A0000-0x00000000002B0000-memory.dmp family_xworm C:\Users\Admin\AppData\Roaming\XClient.exe family_xworm behavioral1/memory/1804-36-0x0000000001050000-0x0000000001060000-memory.dmp family_xworm behavioral1/memory/1284-39-0x00000000003F0000-0x0000000000400000-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 2628 powershell.exe 2504 powershell.exe 2384 powershell.exe 2344 powershell.exe -
Drops startup file 2 IoCs
Processes:
8fa8e02a32db4626290b784d771e051ad9d12f396c4e95267d8b072835e81be3.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk 8fa8e02a32db4626290b784d771e051ad9d12f396c4e95267d8b072835e81be3.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk 8fa8e02a32db4626290b784d771e051ad9d12f396c4e95267d8b072835e81be3.exe -
Executes dropped EXE 2 IoCs
Processes:
XClient.exeXClient.exepid process 1804 XClient.exe 1284 XClient.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
8fa8e02a32db4626290b784d771e051ad9d12f396c4e95267d8b072835e81be3.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\XClient = "C:\\Users\\Admin\\AppData\\Roaming\\XClient.exe" 8fa8e02a32db4626290b784d771e051ad9d12f396c4e95267d8b072835e81be3.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Creates scheduled task(s) 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 5 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exe8fa8e02a32db4626290b784d771e051ad9d12f396c4e95267d8b072835e81be3.exepid process 2628 powershell.exe 2504 powershell.exe 2384 powershell.exe 2344 powershell.exe 1544 8fa8e02a32db4626290b784d771e051ad9d12f396c4e95267d8b072835e81be3.exe -
Suspicious use of AdjustPrivilegeToken 8 IoCs
Processes:
8fa8e02a32db4626290b784d771e051ad9d12f396c4e95267d8b072835e81be3.exepowershell.exepowershell.exepowershell.exepowershell.exeXClient.exeXClient.exedescription pid process Token: SeDebugPrivilege 1544 8fa8e02a32db4626290b784d771e051ad9d12f396c4e95267d8b072835e81be3.exe Token: SeDebugPrivilege 2628 powershell.exe Token: SeDebugPrivilege 2504 powershell.exe Token: SeDebugPrivilege 2384 powershell.exe Token: SeDebugPrivilege 2344 powershell.exe Token: SeDebugPrivilege 1544 8fa8e02a32db4626290b784d771e051ad9d12f396c4e95267d8b072835e81be3.exe Token: SeDebugPrivilege 1804 XClient.exe Token: SeDebugPrivilege 1284 XClient.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
8fa8e02a32db4626290b784d771e051ad9d12f396c4e95267d8b072835e81be3.exepid process 1544 8fa8e02a32db4626290b784d771e051ad9d12f396c4e95267d8b072835e81be3.exe -
Suspicious use of WriteProcessMemory 21 IoCs
Processes:
8fa8e02a32db4626290b784d771e051ad9d12f396c4e95267d8b072835e81be3.exetaskeng.exedescription pid process target process PID 1544 wrote to memory of 2628 1544 8fa8e02a32db4626290b784d771e051ad9d12f396c4e95267d8b072835e81be3.exe powershell.exe PID 1544 wrote to memory of 2628 1544 8fa8e02a32db4626290b784d771e051ad9d12f396c4e95267d8b072835e81be3.exe powershell.exe PID 1544 wrote to memory of 2628 1544 8fa8e02a32db4626290b784d771e051ad9d12f396c4e95267d8b072835e81be3.exe powershell.exe PID 1544 wrote to memory of 2504 1544 8fa8e02a32db4626290b784d771e051ad9d12f396c4e95267d8b072835e81be3.exe powershell.exe PID 1544 wrote to memory of 2504 1544 8fa8e02a32db4626290b784d771e051ad9d12f396c4e95267d8b072835e81be3.exe powershell.exe PID 1544 wrote to memory of 2504 1544 8fa8e02a32db4626290b784d771e051ad9d12f396c4e95267d8b072835e81be3.exe powershell.exe PID 1544 wrote to memory of 2384 1544 8fa8e02a32db4626290b784d771e051ad9d12f396c4e95267d8b072835e81be3.exe powershell.exe PID 1544 wrote to memory of 2384 1544 8fa8e02a32db4626290b784d771e051ad9d12f396c4e95267d8b072835e81be3.exe powershell.exe PID 1544 wrote to memory of 2384 1544 8fa8e02a32db4626290b784d771e051ad9d12f396c4e95267d8b072835e81be3.exe powershell.exe PID 1544 wrote to memory of 2344 1544 8fa8e02a32db4626290b784d771e051ad9d12f396c4e95267d8b072835e81be3.exe powershell.exe PID 1544 wrote to memory of 2344 1544 8fa8e02a32db4626290b784d771e051ad9d12f396c4e95267d8b072835e81be3.exe powershell.exe PID 1544 wrote to memory of 2344 1544 8fa8e02a32db4626290b784d771e051ad9d12f396c4e95267d8b072835e81be3.exe powershell.exe PID 1544 wrote to memory of 2156 1544 8fa8e02a32db4626290b784d771e051ad9d12f396c4e95267d8b072835e81be3.exe schtasks.exe PID 1544 wrote to memory of 2156 1544 8fa8e02a32db4626290b784d771e051ad9d12f396c4e95267d8b072835e81be3.exe schtasks.exe PID 1544 wrote to memory of 2156 1544 8fa8e02a32db4626290b784d771e051ad9d12f396c4e95267d8b072835e81be3.exe schtasks.exe PID 1620 wrote to memory of 1804 1620 taskeng.exe XClient.exe PID 1620 wrote to memory of 1804 1620 taskeng.exe XClient.exe PID 1620 wrote to memory of 1804 1620 taskeng.exe XClient.exe PID 1620 wrote to memory of 1284 1620 taskeng.exe XClient.exe PID 1620 wrote to memory of 1284 1620 taskeng.exe XClient.exe PID 1620 wrote to memory of 1284 1620 taskeng.exe XClient.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\8fa8e02a32db4626290b784d771e051ad9d12f396c4e95267d8b072835e81be3.exe"C:\Users\Admin\AppData\Local\Temp\8fa8e02a32db4626290b784d771e051ad9d12f396c4e95267d8b072835e81be3.exe"1⤵
- 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:1544 -
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\8fa8e02a32db4626290b784d771e051ad9d12f396c4e95267d8b072835e81be3.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2628
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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 '8fa8e02a32db4626290b784d771e051ad9d12f396c4e95267d8b072835e81be3.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2504
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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:2384
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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:2344
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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⤵
- Creates scheduled task(s)
PID:2156
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C:\Windows\system32\taskeng.exetaskeng.exe {984BA38A-E541-4845-9F37-7DC39ACD2C55} S-1-5-21-330940541-141609230-1670313778-1000:KXIPPCKF\Admin:Interactive:[1]1⤵
- Suspicious use of WriteProcessMemory
PID:1620 -
C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1804
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C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1284
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms
Filesize7KB
MD5a503ffff10babc37a0daf1d6085812a7
SHA1f1042d966b3a1d33dfd9c0b0d2dcbb6055d2dd27
SHA256a3d988cb56045105ccca841ab7c4843bb1114699c85b215ad58e863125e8d4e2
SHA5129a4c823d0c05873881941eeca0ef721b9470d55eafdd7b7e84915f3d7d4e655e537d2de6e81222451ef4c23391ef441c046103fc0803466ac977cea712d8b005
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Filesize
39KB
MD5dfc191c2d6414fbefcda695fedcac614
SHA1a2f01a5c1aa6da85d2d3593b71b509f50a880367
SHA2568fa8e02a32db4626290b784d771e051ad9d12f396c4e95267d8b072835e81be3
SHA51259fd4f6d6384b3df8eb67b47477e0474053ca30dff6a4bcf057bb2f8fb2a8a57eb4c11d8308d410290d55cde3bb47dd654eef9a235787a3b3e86103e9dfff9f2