Analysis
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max time kernel
298s -
max time network
306s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
23-03-2024 19:36
Behavioral task
behavioral1
Sample
XClient.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
XClient.exe
Resource
win10v2004-20240226-en
General
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Target
XClient.exe
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Size
86KB
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MD5
b02c9848a5f2039383868c3e100783dd
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SHA1
e7d02d1bb49590d54fa2d37345e86ae7a1b6d2cc
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SHA256
34aa9bad44607ef50b9327ae1775d6048f8954b2f834ba096a2a85b9a0c0222d
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SHA512
7cd95379c2b1b9155cbff3872aa318bcf0bb5edfa5dc3457600c6e52c48e78097a82c66bdadfc3db0f560d2a1c850454e96dee3325b59cde5ebb2abd997d7b76
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SSDEEP
1536:tJqyxozIQOT5HjMlBkJqa8s94Utb/GHZe3xRTyPGbRK1wyN6OGOeLj6fZl:DqAQOT5DMoJFb+UxRTldxOkmf7
Malware Config
Extracted
xworm
Thecoolboi991-51392.portmap.io:51392
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Install_directory
%AppData%
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install_file
XClient.exe
Signatures
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Detect Xworm Payload 2 IoCs
Processes:
resource yara_rule behavioral2/memory/4020-0-0x0000000000970000-0x000000000098C000-memory.dmp family_xworm C:\Users\Admin\AppData\Roaming\XClient.exe family_xworm -
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-1-5-21-609813121-2907144057-1731107329-1000\Control Panel\International\Geo\Nation XClient.exe -
Drops startup file 2 IoCs
Processes:
XClient.exedescription 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 4 IoCs
Processes:
XClient.exeXClient.exeXClient.exeXClient.exepid process 4268 XClient.exe 3784 XClient.exe 3884 XClient.exe 3156 XClient.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
XClient.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\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.
Processes:
flow ioc 37 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.
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Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
XClient.exepid process 4020 XClient.exe -
Suspicious behavior: EnumeratesProcesses 11 IoCs
Processes:
powershell.exepowershell.exepowershell.exeXClient.exepid process 688 powershell.exe 688 powershell.exe 688 powershell.exe 1508 powershell.exe 1508 powershell.exe 1508 powershell.exe 5096 powershell.exe 5096 powershell.exe 5096 powershell.exe 4020 XClient.exe 4020 XClient.exe -
Suspicious use of AdjustPrivilegeToken 9 IoCs
Processes:
XClient.exepowershell.exepowershell.exepowershell.exeXClient.exeXClient.exeXClient.exeXClient.exedescription pid process Token: SeDebugPrivilege 4020 XClient.exe Token: SeDebugPrivilege 688 powershell.exe Token: SeDebugPrivilege 1508 powershell.exe Token: SeDebugPrivilege 5096 powershell.exe Token: SeDebugPrivilege 4020 XClient.exe Token: SeDebugPrivilege 4268 XClient.exe Token: SeDebugPrivilege 3784 XClient.exe Token: SeDebugPrivilege 3884 XClient.exe Token: SeDebugPrivilege 3156 XClient.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
XClient.exepid process 4020 XClient.exe -
Suspicious use of WriteProcessMemory 10 IoCs
Processes:
XClient.exedescription pid process target process PID 4020 wrote to memory of 688 4020 XClient.exe powershell.exe PID 4020 wrote to memory of 688 4020 XClient.exe powershell.exe PID 4020 wrote to memory of 1508 4020 XClient.exe powershell.exe PID 4020 wrote to memory of 1508 4020 XClient.exe powershell.exe PID 4020 wrote to memory of 5096 4020 XClient.exe powershell.exe PID 4020 wrote to memory of 5096 4020 XClient.exe powershell.exe PID 4020 wrote to memory of 1268 4020 XClient.exe powershell.exe PID 4020 wrote to memory of 1268 4020 XClient.exe powershell.exe PID 4020 wrote to memory of 4500 4020 XClient.exe schtasks.exe PID 4020 wrote to memory of 4500 4020 XClient.exe schtasks.exe -
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: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4020 -
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⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:688 -
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
PID:1508 -
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⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5096 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'2⤵PID:1268
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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:4500
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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:4268
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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:3784
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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:3884
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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:3156
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
MD50aa63dbb46d451e47a7a682c64af776d
SHA13b0026f2dae8e9c491ccaa40133755779de35aaa
SHA2569158038718d41172c22a3c1a15852405e3e1c8e2c44fa066328eb1520e5d977b
SHA5124d2564850c2ab1bc71089412f19147df4a1cd3075aa2039aa894271b333cd9c510b7ba4d70889f24d45d8b366d8b5167abdcf24314e4753420337c7d34e7c43f
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
86KB
MD5b02c9848a5f2039383868c3e100783dd
SHA1e7d02d1bb49590d54fa2d37345e86ae7a1b6d2cc
SHA25634aa9bad44607ef50b9327ae1775d6048f8954b2f834ba096a2a85b9a0c0222d
SHA5127cd95379c2b1b9155cbff3872aa318bcf0bb5edfa5dc3457600c6e52c48e78097a82c66bdadfc3db0f560d2a1c850454e96dee3325b59cde5ebb2abd997d7b76