Analysis
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max time kernel
150s -
max time network
147s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
30-05-2024 11:04
Behavioral task
behavioral1
Sample
XClient.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
XClient.exe
Resource
win10v2004-20240508-en
General
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Target
XClient.exe
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Size
61KB
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MD5
892ddc6e9fc78113c7cd7c863b97408f
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SHA1
4d4f1cd50caa21962f66494187c6482dce436545
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SHA256
6433a2e6533a9d6789e46c3760e99d63a4ad493a9e9ea035fbb417440e983a51
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SHA512
cafe8efc2a2b72b1c7b9f31ba95c4b439318bbc8e5912bf7bd38f8e226c35c560d6d1d974a95a1dbecc371c5652003143d62bb741c0def249fabbd6c33685d64
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SSDEEP
1536:V3oAlJbb147e36CMrBVbBVwE6BOWHaNI:BoAzG7zjbBQOKwI
Malware Config
Extracted
xworm
registered-martial.gl.at.ply.gg:62460
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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/2156-1-0x0000000000A30000-0x0000000000A46000-memory.dmp family_xworm C:\Users\Admin\AppData\Roaming\XClient.exe family_xworm behavioral1/memory/1588-37-0x0000000000F70000-0x0000000000F86000-memory.dmp family_xworm behavioral1/memory/1888-71-0x0000000000240000-0x0000000000256000-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 2460 powershell.exe 2464 powershell.exe 2772 powershell.exe 3008 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 4 IoCs
Processes:
XClient.exeXClient.exeXClient.exeXClient.exepid process 1588 XClient.exe 1784 XClient.exe 1888 XClient.exe 1244 XClient.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
XClient.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\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 4 ip-api.com -
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 64 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exeXClient.exepid process 3008 powershell.exe 2460 powershell.exe 2464 powershell.exe 2772 powershell.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe 2156 XClient.exe -
Suspicious use of AdjustPrivilegeToken 11 IoCs
Processes:
XClient.exepowershell.exepowershell.exepowershell.exepowershell.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exedescription pid process Token: SeDebugPrivilege 2156 XClient.exe Token: SeDebugPrivilege 3008 powershell.exe Token: SeDebugPrivilege 2460 powershell.exe Token: SeDebugPrivilege 2464 powershell.exe Token: SeDebugPrivilege 2772 powershell.exe Token: SeDebugPrivilege 2156 XClient.exe Token: SeDebugPrivilege 1588 XClient.exe Token: SeDebugPrivilege 1784 XClient.exe Token: SeDebugPrivilege 1888 XClient.exe Token: SeDebugPrivilege 1244 XClient.exe Token: SeDebugPrivilege 1836 XClient.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
XClient.exepid process 2156 XClient.exe -
Suspicious use of WriteProcessMemory 24 IoCs
Processes:
XClient.exetaskeng.exedescription pid process target process PID 2156 wrote to memory of 3008 2156 XClient.exe powershell.exe PID 2156 wrote to memory of 3008 2156 XClient.exe powershell.exe PID 2156 wrote to memory of 3008 2156 XClient.exe powershell.exe PID 2156 wrote to memory of 2460 2156 XClient.exe powershell.exe PID 2156 wrote to memory of 2460 2156 XClient.exe powershell.exe PID 2156 wrote to memory of 2460 2156 XClient.exe powershell.exe PID 2156 wrote to memory of 2464 2156 XClient.exe powershell.exe PID 2156 wrote to memory of 2464 2156 XClient.exe powershell.exe PID 2156 wrote to memory of 2464 2156 XClient.exe powershell.exe PID 2156 wrote to memory of 2772 2156 XClient.exe powershell.exe PID 2156 wrote to memory of 2772 2156 XClient.exe powershell.exe PID 2156 wrote to memory of 2772 2156 XClient.exe powershell.exe PID 2156 wrote to memory of 112 2156 XClient.exe schtasks.exe PID 2156 wrote to memory of 112 2156 XClient.exe schtasks.exe PID 2156 wrote to memory of 112 2156 XClient.exe schtasks.exe PID 1600 wrote to memory of 1588 1600 taskeng.exe XClient.exe PID 1600 wrote to memory of 1588 1600 taskeng.exe XClient.exe PID 1600 wrote to memory of 1588 1600 taskeng.exe XClient.exe PID 1600 wrote to memory of 1784 1600 taskeng.exe XClient.exe PID 1600 wrote to memory of 1784 1600 taskeng.exe XClient.exe PID 1600 wrote to memory of 1784 1600 taskeng.exe XClient.exe PID 1600 wrote to memory of 1244 1600 taskeng.exe XClient.exe PID 1600 wrote to memory of 1244 1600 taskeng.exe XClient.exe PID 1600 wrote to memory of 1244 1600 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\XClient.exe"C:\Users\Admin\AppData\Local\Temp\XClient.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:2156 -
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:3008
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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:2460
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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:2464
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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:2772
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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:112
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C:\Windows\system32\taskeng.exetaskeng.exe {3F1009F0-2808-40B1-A3F1-26B141E9B5B7} S-1-5-21-2297530677-1229052932-2803917579-1000:HKULBIBU\Admin:Interactive:[1]1⤵
- Suspicious use of WriteProcessMemory
PID:1600 -
C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1588
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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:1784
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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:1244
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C:\Windows\explorer.exe"C:\Windows\explorer.exe"1⤵PID:2820
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C:\Users\Admin\AppData\Roaming\XClient.exe"C:\Users\Admin\AppData\Roaming\XClient.exe"1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1888
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C:\Users\Admin\AppData\Local\Temp\XClient.exe"C:\Users\Admin\AppData\Local\Temp\XClient.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1836
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
MD5626ac5b70a0311a5255a346d638643e0
SHA10797d03d6a312a60b6b41ed3d51d68925b912dba
SHA2563dfe48e10bfc0e72c5094f91492f73ac762215bcb9748b9f0889d05ed19710b7
SHA512b1b51ed13ee5b3929f3aa1a5a38e81c22e8351d1449dfff593659b7adea1b482359574d54189dbe6187865f38135c00507460ac47d20e89760361ea9ff3bb13d
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Filesize
61KB
MD5892ddc6e9fc78113c7cd7c863b97408f
SHA14d4f1cd50caa21962f66494187c6482dce436545
SHA2566433a2e6533a9d6789e46c3760e99d63a4ad493a9e9ea035fbb417440e983a51
SHA512cafe8efc2a2b72b1c7b9f31ba95c4b439318bbc8e5912bf7bd38f8e226c35c560d6d1d974a95a1dbecc371c5652003143d62bb741c0def249fabbd6c33685d64
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MD5
d41d8cd98f00b204e9800998ecf8427e
SHA1da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e