Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
08/04/2024, 04:10
General
- Target 0803c1aec008e75859877844cfa81492.exe
- Size 267KB
- Sample240408-erc5qagd2w
- SHA256 d5ab98bd209db0ed18272fe616ea4b8be34fd13d36116d25793fa7aa6f8b33e3
Malware Config
Extracted
-
xworm
-
94.156.8.213:58002
-
install_file
USB.exe
Signatures
- Detect Xworm Payload 1 IoCs
- Xworm
Xworm is a remote access trojan written in C#.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- Drops file in Windows directory 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 28 IoCs
- Suspicious use of AdjustPrivilegeToken 9 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 4 IoCs
- 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.
- Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
-
C:\Users\Admin\AppData\Local\Temp\0803c1aec008e75859877844cfa81492.exe"C:\Users\Admin\AppData\Local\Temp\0803c1aec008e75859877844cfa81492.exe"1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- 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:\Windows\svchost.exe'2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost.exe'2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\svchost.exeC:\Windows\svchost.exe1⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
powershell.exe.log
StartupProfileData-NonInteractive
__PSScriptPolicyTest_yvsc5s2o.j4j.ps1
svchost.exe
memory/1684-20-0x000001E0F8380000-0x000001E0F8390000-memory.dmp
memory/1684-19-0x00007FFAAFEC0000-0x00007FFAB0981000-memory.dmp
memory/1684-33-0x00007FFAAFEC0000-0x00007FFAB0981000-memory.dmp
memory/1684-21-0x000001E0F8380000-0x000001E0F8390000-memory.dmp
memory/2608-4-0x0000012146280000-0x0000012146290000-memory.dmp
memory/2608-10-0x0000012146290000-0x00000121462B2000-memory.dmp
memory/2608-17-0x00007FFAAFEC0000-0x00007FFAB0981000-memory.dmp
memory/2608-2-0x00007FFAAFEC0000-0x00007FFAB0981000-memory.dmp
memory/2608-3-0x0000012146280000-0x0000012146290000-memory.dmp
memory/3060-40-0x00007FFAAFEC0000-0x00007FFAB0981000-memory.dmp
memory/3060-42-0x000000001C3B0000-0x000000001C3C8000-memory.dmp
memory/3060-43-0x00007FFAAFEC0000-0x00007FFAB0981000-memory.dmp
memory/4820-0-0x00000000004F0000-0x000000000053A000-memory.dmp
memory/4820-36-0x000000001B090000-0x000000001B0A0000-memory.dmp
memory/4820-1-0x00007FFAAFEC0000-0x00007FFAB0981000-memory.dmp
memory/4820-41-0x00007FFAAFEC0000-0x00007FFAB0981000-memory.dmp