Analysis
- max time kernel
607s - max time network
603s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
10/03/2024, 10:17
General
- Target Xworm5.4_rar.exe
- Size 79KB
- Sample240310-mbj74aae81
- SHA256 c78eb4a370c5a7ad6d1d0dc50a3a64d728cf3b080ace43d3c6e80f3a20823f0a
Malware Config
Extracted
-
xworm
-
0.tcp.ap.ngrok.io:18066
-
Install_directory
%ProgramData%
-
install_file
XClient.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.
- Drops startup file 2 IoCs
- Legitimate hosting services abused for malware hosting/C2 1 TTPs 10 IoCs
- Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 9 IoCs
- Suspicious use of AdjustPrivilegeToken 6 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Xworm5.4_rar.exe"C:\Users\Admin\AppData\Local\Temp\Xworm5.4_rar.exe"1⤵
- Checks computer location settings
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
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\Xworm5.4_rar.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 'Xworm5.4_rar.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 -ExclusionPath 'C:\ProgramData\XClient.exe'2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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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⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
powershell.exe.log
StartupProfileData-NonInteractive
StartupProfileData-NonInteractive
StartupProfileData-NonInteractive
__PSScriptPolicyTest_plpmsteu.zwb.ps1
memory/1128-22-0x000001BDB8FE0000-0x000001BDB8FF0000-memory.dmp
memory/1128-38-0x00007FFBAE1F0000-0x00007FFBAECB1000-memory.dmp
memory/1128-36-0x000001BDB8FE0000-0x000001BDB8FF0000-memory.dmp
memory/1128-21-0x00007FFBAE1F0000-0x00007FFBAECB1000-memory.dmp
memory/1128-23-0x000001BDB8FE0000-0x000001BDB8FF0000-memory.dmp
memory/1128-34-0x000001BDB8FE0000-0x000001BDB8FF0000-memory.dmp
memory/2200-52-0x000000001AC50000-0x000000001AC60000-memory.dmp
memory/2200-0-0x0000000000100000-0x000000000011A000-memory.dmp
memory/2200-2-0x000000001AC50000-0x000000001AC60000-memory.dmp
memory/2200-35-0x00007FFBAE1F0000-0x00007FFBAECB1000-memory.dmp
memory/2200-1-0x00007FFBAE1F0000-0x00007FFBAECB1000-memory.dmp
memory/2252-53-0x0000025B53740000-0x0000025B53750000-memory.dmp
memory/2252-51-0x0000025B53740000-0x0000025B53750000-memory.dmp
memory/2252-55-0x00007FFBAE1F0000-0x00007FFBAECB1000-memory.dmp
memory/2252-48-0x00007FFBAE1F0000-0x00007FFBAECB1000-memory.dmp
memory/2252-49-0x0000025B53740000-0x0000025B53750000-memory.dmp
memory/2744-56-0x00007FFBAE1F0000-0x00007FFBAECB1000-memory.dmp
memory/2744-57-0x000001D1F8480000-0x000001D1F8490000-memory.dmp
memory/2744-58-0x000001D1F8480000-0x000001D1F8490000-memory.dmp
memory/2744-69-0x000001D1F8480000-0x000001D1F8490000-memory.dmp
memory/2744-71-0x00007FFBAE1F0000-0x00007FFBAECB1000-memory.dmp
memory/4620-8-0x000002B5EB020000-0x000002B5EB042000-memory.dmp
memory/4620-5-0x000002B5EB010000-0x000002B5EB020000-memory.dmp
memory/4620-19-0x00007FFBAE1F0000-0x00007FFBAECB1000-memory.dmp
memory/4620-4-0x000002B5EB010000-0x000002B5EB020000-memory.dmp
memory/4620-16-0x000002B5EB010000-0x000002B5EB020000-memory.dmp
memory/4620-3-0x00007FFBAE1F0000-0x00007FFBAECB1000-memory.dmp