Analysis
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max time kernel
148s -
max time network
134s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
26-05-2024 12:16
Behavioral task
behavioral1
Sample
XClient.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
XClient.exe
Resource
win10v2004-20240508-en
General
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Target
XClient.exe
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Size
39KB
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MD5
66f5cca568b2b83c23a69295ad2c643b
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SHA1
b822f0bcded0f587413d84f27eb2f5fdcdb48304
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SHA256
971294811a8fd3c967958db073238a75573ea1db5749b8153e5f684b27f99da6
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SHA512
c8bf4acc4644b614715eeaf4cda10ba100afeceaab0f7b7cb627f1c6f7676308c0c73e7dbbe6833ec3da1f9c10616e2c28a9ba4fc88e180ff3e0123071c50469
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SSDEEP
768:VG7+qmT8ztyh6pwDYvCL2v6hCuuJf27iJ1fFWPG9/hL6OOwhnjibH:4fmT8ztyh6pwDnKwCuuJfBFv9/hL6OO3
Malware Config
Extracted
xworm
5.0
127.0.0.1:54921
Zv7fhTadtKHCA29x
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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/840-1-0x00000000007A0000-0x00000000007B0000-memory.dmp family_xworm C:\Users\Admin\AppData\Roaming\XClient.exe family_xworm -
Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepid process 2640 powershell.exe 4804 powershell.exe 1124 powershell.exe 5068 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-1-5-21-3558294865-3673844354-2255444939-1000\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 3 IoCs
Processes:
XClient.exeXClient.exeXClient.exepid process 64 XClient.exe 232 XClient.exe 2288 XClient.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
XClient.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\XClient = "C:\\Users\\Admin\\AppData\\Roaming\\XClient.exe" XClient.exe -
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: EnumeratesProcesses 9 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exeXClient.exepid process 2640 powershell.exe 2640 powershell.exe 4804 powershell.exe 4804 powershell.exe 1124 powershell.exe 1124 powershell.exe 5068 powershell.exe 5068 powershell.exe 840 XClient.exe -
Suspicious use of AdjustPrivilegeToken 9 IoCs
Processes:
XClient.exepowershell.exepowershell.exepowershell.exepowershell.exeXClient.exeXClient.exeXClient.exedescription pid process Token: SeDebugPrivilege 840 XClient.exe Token: SeDebugPrivilege 2640 powershell.exe Token: SeDebugPrivilege 4804 powershell.exe Token: SeDebugPrivilege 1124 powershell.exe Token: SeDebugPrivilege 5068 powershell.exe Token: SeDebugPrivilege 840 XClient.exe Token: SeDebugPrivilege 64 XClient.exe Token: SeDebugPrivilege 232 XClient.exe Token: SeDebugPrivilege 2288 XClient.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
XClient.exepid process 840 XClient.exe -
Suspicious use of WriteProcessMemory 10 IoCs
Processes:
XClient.exedescription pid process target process PID 840 wrote to memory of 2640 840 XClient.exe powershell.exe PID 840 wrote to memory of 2640 840 XClient.exe powershell.exe PID 840 wrote to memory of 4804 840 XClient.exe powershell.exe PID 840 wrote to memory of 4804 840 XClient.exe powershell.exe PID 840 wrote to memory of 1124 840 XClient.exe powershell.exe PID 840 wrote to memory of 1124 840 XClient.exe powershell.exe PID 840 wrote to memory of 5068 840 XClient.exe powershell.exe PID 840 wrote to memory of 5068 840 XClient.exe powershell.exe PID 840 wrote to memory of 4320 840 XClient.exe schtasks.exe PID 840 wrote to memory of 4320 840 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: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:840 -
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:2640
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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:4804
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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:1124
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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:5068
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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:4320
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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:64
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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:232
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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:2288
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
MD5e243a38635ff9a06c87c2a61a2200656
SHA1ecd95ed5bf1a9fbe96a8448fc2814a0210fa2afc
SHA256af5782703f3f2d5a29fb313dae6680a64134db26064d4a321a3f23b75f6ca00f
SHA5124418957a1b10eee44cf270c81816ae707352411c4f5ac14b6b61ab537c91480e24e0a0a2c276a6291081b4984c123cf673a45dcedb0ceeef682054ba0fc19cb4
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Filesize
944B
MD5120c6c9af4de2accfcff2ed8c3aab1af
SHA1504f64ae4ac9c4fe308a6a50be24fe464f3dad95
SHA256461315e4057c3fa4d0031df3f7e6511914f082698b6c41f5c2ada831ceffb222
SHA512041712168718dff702da8203b4089b2e57db98ce503b8ecf36809dec0cd7a595a0d427caa960bc1bd29cbedc85ad3262773f2077a476b85aca387d48f7b07ba2
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Filesize
944B
MD5917a161bb2d17497c982efd72c4d0cb8
SHA1a8b74e1fbff06b68fa18bebbaf48b09ccc7c8d19
SHA256a6351ccbf77323407b8052f7144a7bf593e81eec7930c2f5737bab6c6a3cdb80
SHA51272f47924d56f92f26ae0ec4767c6247507c822012dfec2f693a76b38e5be7581a401b698ab078d339debfa8adf5f29c8599b4081fd0add221581cb009b9c6169
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
39KB
MD566f5cca568b2b83c23a69295ad2c643b
SHA1b822f0bcded0f587413d84f27eb2f5fdcdb48304
SHA256971294811a8fd3c967958db073238a75573ea1db5749b8153e5f684b27f99da6
SHA512c8bf4acc4644b614715eeaf4cda10ba100afeceaab0f7b7cb627f1c6f7676308c0c73e7dbbe6833ec3da1f9c10616e2c28a9ba4fc88e180ff3e0123071c50469