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Analysis
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max time kernel
598s -
max time network
600s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
05/06/2024, 16:53
Behavioral task
behavioral1
Sample
XClient.exe
Resource
win10-20240404-en
Behavioral task
behavioral2
Sample
XClient.exe
Resource
win7-20240215-en
Behavioral task
behavioral3
Sample
XClient.exe
Resource
win10v2004-20240426-en
Behavioral task
behavioral4
Sample
XClient.exe
Resource
win11-20240426-en
General
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Target
XClient.exe
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Size
43KB
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MD5
9a6ce16635ceb90281c16062ae68a06c
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SHA1
319ee0e49c3a23cf6afa7cb34d358247b6fbc89e
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SHA256
f9a8f2e29dc5966bcb6f5a9b118a0e2cb2807619d9ce16dbb18e71737bf44ac8
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SHA512
ec1e632a6efc0c8aa20386c3925a3b3a2941a33992d788de6d5a777a10c267e073b57d8a95af3d00684b0c4c33efb060f1d126c95179de731a19c71da36eb589
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SSDEEP
768:ZY8ErOTKMYpyyNRyjymZ49pnWwFFEPh9Cf66FOChtk2lHxfgm:6/OUTc6Fw9y66FOCIwRt
Malware Config
Extracted
xworm
3.0
lunassworld-50930.portmap.host:5508
tBgRQhKX6pJuMKdy
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Install_directory
%AppData%
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install_file
USB.exe
Signatures
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Detect Xworm Payload 2 IoCs
resource yara_rule behavioral3/memory/2968-1-0x0000000000220000-0x0000000000232000-memory.dmp family_xworm behavioral3/files/0x0009000000023422-48.dat family_xworm -
Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 4528 powershell.exe 1712 powershell.exe 1952 powershell.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\International\Geo\Nation XClient.exe -
Drops startup file 2 IoCs
description 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 10 IoCs
pid Process 452 XClient.exe 2336 XClient.exe 4048 XClient.exe 3932 XClient.exe 4092 XClient.exe 3680 XClient.exe 2504 XClient.exe 1748 XClient.exe 4084 XClient.exe 2772 XClient.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\XClient = "C:\\Users\\Admin\\AppData\\Roaming\\XClient.exe" 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.
flow ioc 13 ip-api.com -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4672 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 7 IoCs
pid Process 4528 powershell.exe 4528 powershell.exe 1712 powershell.exe 1712 powershell.exe 1952 powershell.exe 1952 powershell.exe 2968 XClient.exe -
Suspicious use of AdjustPrivilegeToken 15 IoCs
description pid Process Token: SeDebugPrivilege 2968 XClient.exe Token: SeDebugPrivilege 4528 powershell.exe Token: SeDebugPrivilege 1712 powershell.exe Token: SeDebugPrivilege 1952 powershell.exe Token: SeDebugPrivilege 2968 XClient.exe Token: SeDebugPrivilege 452 XClient.exe Token: SeDebugPrivilege 2336 XClient.exe Token: SeDebugPrivilege 4048 XClient.exe Token: SeDebugPrivilege 3932 XClient.exe Token: SeDebugPrivilege 4092 XClient.exe Token: SeDebugPrivilege 3680 XClient.exe Token: SeDebugPrivilege 2504 XClient.exe Token: SeDebugPrivilege 1748 XClient.exe Token: SeDebugPrivilege 4084 XClient.exe Token: SeDebugPrivilege 2772 XClient.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2968 XClient.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2968 wrote to memory of 4528 2968 XClient.exe 89 PID 2968 wrote to memory of 4528 2968 XClient.exe 89 PID 2968 wrote to memory of 1712 2968 XClient.exe 92 PID 2968 wrote to memory of 1712 2968 XClient.exe 92 PID 2968 wrote to memory of 1952 2968 XClient.exe 94 PID 2968 wrote to memory of 1952 2968 XClient.exe 94 PID 2968 wrote to memory of 4672 2968 XClient.exe 96 PID 2968 wrote to memory of 4672 2968 XClient.exe 96 -
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
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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
- 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:2968 -
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:4528
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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:1712
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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:\Users\Admin\AppData\Roaming\XClient.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1952
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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:4672
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C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:452
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C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2336
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C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4048
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C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3932
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C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4092
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C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3680
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C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2504
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C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1748
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C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4084
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C:\Users\Admin\AppData\Roaming\XClient.exeC:\Users\Admin\AppData\Roaming\XClient.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2772
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
654B
MD52ff39f6c7249774be85fd60a8f9a245e
SHA1684ff36b31aedc1e587c8496c02722c6698c1c4e
SHA256e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced
SHA5121d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1
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Filesize
2KB
MD5d85ba6ff808d9e5444a4b369f5bc2730
SHA131aa9d96590fff6981b315e0b391b575e4c0804a
SHA25684739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
SHA5128c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249
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Filesize
944B
MD5cadef9abd087803c630df65264a6c81c
SHA1babbf3636c347c8727c35f3eef2ee643dbcc4bd2
SHA256cce65b73cdfe9304bcd5207913e8b60fb69faa20cd3b684f2b0343b755b99438
SHA5127278aa87124abb382d9024a645e881e7b7cf1b84e8894943b36e018dbf0399e6858392f77980b599fa5488e2e21bf757a0702fe6419417edac93b68e0c2ec085
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Filesize
944B
MD51b662a0da53b1e3a1a4e100e36c4fa0d
SHA17aa819b5f5bb9a47aaabef5311b81892d9b19629
SHA256f4f91f5d42193856310c988575877268a21f1427904efb380b3443d14c5f32ec
SHA51279b3ed1d1ccdabb4cb354112091de7f282ecf4b2c415ea77538a0697f9855423fd3f1d165f9250f73540fde468174a2fe544052fcb6d6574bfd98b005af9b8b7
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
43KB
MD59a6ce16635ceb90281c16062ae68a06c
SHA1319ee0e49c3a23cf6afa7cb34d358247b6fbc89e
SHA256f9a8f2e29dc5966bcb6f5a9b118a0e2cb2807619d9ce16dbb18e71737bf44ac8
SHA512ec1e632a6efc0c8aa20386c3925a3b3a2941a33992d788de6d5a777a10c267e073b57d8a95af3d00684b0c4c33efb060f1d126c95179de731a19c71da36eb589