Analysis
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max time kernel
148s -
max time network
109s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
26-05-2024 02:35
Behavioral task
behavioral1
Sample
XClient.exe
Resource
win7-20231129-en
General
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Target
XClient.exe
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Size
166KB
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MD5
999d5d3666bdd99abf4a36257f5f24d7
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SHA1
1f06da5c90907bd0f73bd4d2d14127d7d0ce6572
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SHA256
d78ae71f6b40da4cd04ad34ea6a3b64997feca98871e0e24736b41d0b16cba17
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SHA512
b72e2323a57c1b0f9da597b08ddd9c3ed67ea2397324ab13b0869afaa8d8f39bdf8849a6aff9f31951d4d1f940e464d1f9e1040c6c9590ee336c0f422203dc1f
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SSDEEP
3072:l+GO3oDVuy2cbozBJ3ROZJfvcBz65/M6If+3Js+3JFkKeTno:lTVupcbA60xBt25
Malware Config
Extracted
xworm
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install_file
USB.exe
Signatures
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Detect Xworm Payload 1 IoCs
Processes:
resource yara_rule behavioral2/memory/2552-1-0x0000000000B20000-0x0000000000B50000-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 2572 powershell.exe 3784 powershell.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
XClient.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation 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 14 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 2552 XClient.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
Processes:
powershell.exepowershell.exeXClient.exepid process 3784 powershell.exe 3784 powershell.exe 2572 powershell.exe 2572 powershell.exe 2552 XClient.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes:
XClient.exepowershell.exepowershell.exedescription pid process Token: SeDebugPrivilege 2552 XClient.exe Token: SeDebugPrivilege 3784 powershell.exe Token: SeDebugPrivilege 2572 powershell.exe Token: SeDebugPrivilege 2552 XClient.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
XClient.exepid process 2552 XClient.exe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
XClient.exedescription pid process target process PID 2552 wrote to memory of 3784 2552 XClient.exe powershell.exe PID 2552 wrote to memory of 3784 2552 XClient.exe powershell.exe PID 2552 wrote to memory of 2572 2552 XClient.exe powershell.exe PID 2552 wrote to memory of 2572 2552 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⤵
- Checks computer location settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2552 -
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:3784
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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:2572
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2KB
MD5d85ba6ff808d9e5444a4b369f5bc2730
SHA131aa9d96590fff6981b315e0b391b575e4c0804a
SHA25684739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
SHA5128c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249
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Filesize
944B
MD5d28a889fd956d5cb3accfbaf1143eb6f
SHA1157ba54b365341f8ff06707d996b3635da8446f7
SHA25621e5d7ccf80a293e6ba30ed728846ca19c929c52b96e2c8d34e27cd2234f1d45
SHA5120b6d88deb9be85722e6a78d5886d49f2caf407a59e128d2b4ed74c1356f9928c40048a62731959f2460e9ff9d9feee311043d2a37abe3bb92c2b76a44281478c
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82