Analysis
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max time kernel
146s -
max time network
152s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
26-05-2024 14:59
Behavioral task
behavioral1
Sample
XClient.exe
Resource
win7-20240508-en
General
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Target
XClient.exe
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Size
178KB
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MD5
f77e3c044bfaa316282635c965671e0d
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SHA1
4b2dd8aaa5d35e348c5dc4a9db7a6ad8cf611566
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SHA256
da22cbb2cfd0a80a91deb74a01a1c7750629952cafb9e2a253686ec93fcd3c18
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SHA512
8da3ad0b3c57537007f4d913a958e7c956d01d9a72956030bcc5e2b4edf3c10ad532f43745533ad1c58009d73b47a1fadc285efe7ed46fa2deb711dd2015e7d1
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SSDEEP
3072:43ePccS5wEsJQlTJblxxx1VhOfJ+JTvxBz65/M6If+3Js+3JFkKeTno:4VzfTJblvzVJTZxBt25
Malware Config
Extracted
xworm
enough-washer.gl.at.ply.gg:64300
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install_file
USB.exe
Signatures
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Contains code to disable Windows Defender 1 IoCs
A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.
Processes:
resource yara_rule behavioral1/memory/1444-19-0x0000000000E00000-0x0000000000E0E000-memory.dmp disable_win_def -
Detect Xworm Payload 1 IoCs
Processes:
resource yara_rule behavioral1/memory/1444-1-0x0000000001170000-0x00000000011A2000-memory.dmp family_xworm -
Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
Processes:
powershell.exepowershell.exepid process 2712 powershell.exe 3032 powershell.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 2 ip-api.com -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
XClient.exepid process 1444 XClient.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
powershell.exepowershell.exeXClient.exepid process 2712 powershell.exe 3032 powershell.exe 1444 XClient.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes:
XClient.exepowershell.exepowershell.exedescription pid process Token: SeDebugPrivilege 1444 XClient.exe Token: SeDebugPrivilege 2712 powershell.exe Token: SeDebugPrivilege 3032 powershell.exe Token: SeDebugPrivilege 1444 XClient.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
XClient.exepid process 1444 XClient.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
XClient.exedescription pid process target process PID 1444 wrote to memory of 2712 1444 XClient.exe powershell.exe PID 1444 wrote to memory of 2712 1444 XClient.exe powershell.exe PID 1444 wrote to memory of 2712 1444 XClient.exe powershell.exe PID 1444 wrote to memory of 3032 1444 XClient.exe powershell.exe PID 1444 wrote to memory of 3032 1444 XClient.exe powershell.exe PID 1444 wrote to memory of 3032 1444 XClient.exe powershell.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\XClient.exe"C:\Users\Admin\AppData\Local\Temp\XClient.exe"1⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1444 -
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:2712
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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:3032
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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
MD5f3ac2181cf6ecebf4134de3b910c0cfa
SHA180dfd29d063cd2715bd0959077adb9fd050b15bc
SHA25612d5a48792caee398cff706bf405e3214fe6aff45b8900634d7fd3b350fba3f7
SHA512f6c2da0f535590ed4b7e8bb828dd0d81c93e5878c32710c36182fead105b6c0a6e9e9652ba837a28762d52be0e1d2327e93ada70220338246b424ebf805d5b4b