Analysis
-
max time kernel
126s -
max time network
143s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
30-05-2024 15:27
Behavioral task
behavioral1
Sample
XClient.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
XClient.exe
Resource
win10v2004-20240226-en
General
-
Target
XClient.exe
-
Size
39KB
-
MD5
dfc191c2d6414fbefcda695fedcac614
-
SHA1
a2f01a5c1aa6da85d2d3593b71b509f50a880367
-
SHA256
8fa8e02a32db4626290b784d771e051ad9d12f396c4e95267d8b072835e81be3
-
SHA512
59fd4f6d6384b3df8eb67b47477e0474053ca30dff6a4bcf057bb2f8fb2a8a57eb4c11d8308d410290d55cde3bb47dd654eef9a235787a3b3e86103e9dfff9f2
-
SSDEEP
768:WG7+qmT8ztyh6pwDYvCL2v6hCuuJf27iJ1fFWPG9/T6OOwhbjib5:VfmT8ztyh6pwDnKwCuuJfBFv9/T6OOwY
Malware Config
Extracted
xworm
5.0
20.ip.gl.ply.gg:4219
sGAsjjcwpIJWoflZ
-
Install_directory
%AppData%
-
install_file
XClient.exe
Signatures
-
Detect Xworm Payload 3 IoCs
Processes:
resource yara_rule behavioral1/memory/2384-1-0x0000000000E60000-0x0000000000E70000-memory.dmp family_xworm C:\Users\Admin\AppData\Roaming\XClient.exe family_xworm behavioral1/memory/1624-37-0x0000000001320000-0x0000000001330000-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 1936 powershell.exe 2636 powershell.exe 2612 powershell.exe 2796 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 2 IoCs
Processes:
XClient.exeXClient.exepid process 1624 XClient.exe 3012 XClient.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
XClient.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Windows\CurrentVersion\Run\XClient = "C:\\Users\\Admin\\AppData\\Roaming\\XClient.exe" XClient.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
-
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exeXClient.exepid process 1936 powershell.exe 2636 powershell.exe 2612 powershell.exe 2796 powershell.exe 2384 XClient.exe 2384 XClient.exe -
Suspicious use of AdjustPrivilegeToken 8 IoCs
Processes:
XClient.exepowershell.exepowershell.exepowershell.exepowershell.exeXClient.exeXClient.exedescription pid process Token: SeDebugPrivilege 2384 XClient.exe Token: SeDebugPrivilege 1936 powershell.exe Token: SeDebugPrivilege 2636 powershell.exe Token: SeDebugPrivilege 2612 powershell.exe Token: SeDebugPrivilege 2796 powershell.exe Token: SeDebugPrivilege 2384 XClient.exe Token: SeDebugPrivilege 1624 XClient.exe Token: SeDebugPrivilege 3012 XClient.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
XClient.exepid process 2384 XClient.exe -
Suspicious use of WriteProcessMemory 21 IoCs
Processes:
XClient.exetaskeng.exedescription pid process target process PID 2384 wrote to memory of 1936 2384 XClient.exe powershell.exe PID 2384 wrote to memory of 1936 2384 XClient.exe powershell.exe PID 2384 wrote to memory of 1936 2384 XClient.exe powershell.exe PID 2384 wrote to memory of 2636 2384 XClient.exe powershell.exe PID 2384 wrote to memory of 2636 2384 XClient.exe powershell.exe PID 2384 wrote to memory of 2636 2384 XClient.exe powershell.exe PID 2384 wrote to memory of 2612 2384 XClient.exe powershell.exe PID 2384 wrote to memory of 2612 2384 XClient.exe powershell.exe PID 2384 wrote to memory of 2612 2384 XClient.exe powershell.exe PID 2384 wrote to memory of 2796 2384 XClient.exe powershell.exe PID 2384 wrote to memory of 2796 2384 XClient.exe powershell.exe PID 2384 wrote to memory of 2796 2384 XClient.exe powershell.exe PID 2384 wrote to memory of 2240 2384 XClient.exe schtasks.exe PID 2384 wrote to memory of 2240 2384 XClient.exe schtasks.exe PID 2384 wrote to memory of 2240 2384 XClient.exe schtasks.exe PID 2212 wrote to memory of 1624 2212 taskeng.exe XClient.exe PID 2212 wrote to memory of 1624 2212 taskeng.exe XClient.exe PID 2212 wrote to memory of 1624 2212 taskeng.exe XClient.exe PID 2212 wrote to memory of 3012 2212 taskeng.exe XClient.exe PID 2212 wrote to memory of 3012 2212 taskeng.exe XClient.exe PID 2212 wrote to memory of 3012 2212 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
-
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:2384 -
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:1936
-
-
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:2636
-
-
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:2612
-
-
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:2796
-
-
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:2240
-
-
C:\Windows\system32\taskeng.exetaskeng.exe {B02BD488-6751-46FD-B5C6-D977C3492C1F} S-1-5-21-3691908287-3775019229-3534252667-1000:UOTHCPHQ\Admin:Interactive:[1]1⤵
- Suspicious use of WriteProcessMemory
PID:2212 -
C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1624
-
-
C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3012
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms
Filesize7KB
MD58da8fad7262077dd513948d9becc6efb
SHA18e897557903fffa5131a9fd8f8e26a92759941b3
SHA256c95cc63f469294019c476486cf3b94d6c5bee665be99ec3e29666bbcbe17bcbd
SHA51249ac58991e72bad39fee550a342f112916d7471b3909a0002537bb42b28b027c19381af9184aa1571c0ddc85c5b881f834a75dc93b8ee4893c904f1b03b6a32d
-
Filesize
39KB
MD5dfc191c2d6414fbefcda695fedcac614
SHA1a2f01a5c1aa6da85d2d3593b71b509f50a880367
SHA2568fa8e02a32db4626290b784d771e051ad9d12f396c4e95267d8b072835e81be3
SHA51259fd4f6d6384b3df8eb67b47477e0474053ca30dff6a4bcf057bb2f8fb2a8a57eb4c11d8308d410290d55cde3bb47dd654eef9a235787a3b3e86103e9dfff9f2