Analysis
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max time kernel
149s -
max time network
160s -
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 12:21
Behavioral task
behavioral1
Sample
XClient.exe
Resource
win7-20240221-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/4012-1-0x0000000000B50000-0x0000000000B60000-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 3356 powershell.exe 880 powershell.exe 4420 powershell.exe 1988 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-1-5-21-2804150937-2146708401-419095071-1000\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 4088 XClient.exe 2616 XClient.exe 1240 XClient.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
XClient.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\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 1988 powershell.exe 1988 powershell.exe 3356 powershell.exe 3356 powershell.exe 880 powershell.exe 880 powershell.exe 4420 powershell.exe 4420 powershell.exe 4012 XClient.exe -
Suspicious use of AdjustPrivilegeToken 9 IoCs
Processes:
XClient.exepowershell.exepowershell.exepowershell.exepowershell.exeXClient.exeXClient.exeXClient.exedescription pid process Token: SeDebugPrivilege 4012 XClient.exe Token: SeDebugPrivilege 1988 powershell.exe Token: SeDebugPrivilege 3356 powershell.exe Token: SeDebugPrivilege 880 powershell.exe Token: SeDebugPrivilege 4420 powershell.exe Token: SeDebugPrivilege 4012 XClient.exe Token: SeDebugPrivilege 4088 XClient.exe Token: SeDebugPrivilege 2616 XClient.exe Token: SeDebugPrivilege 1240 XClient.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
XClient.exepid process 4012 XClient.exe -
Suspicious use of WriteProcessMemory 10 IoCs
Processes:
XClient.exedescription pid process target process PID 4012 wrote to memory of 1988 4012 XClient.exe powershell.exe PID 4012 wrote to memory of 1988 4012 XClient.exe powershell.exe PID 4012 wrote to memory of 3356 4012 XClient.exe powershell.exe PID 4012 wrote to memory of 3356 4012 XClient.exe powershell.exe PID 4012 wrote to memory of 880 4012 XClient.exe powershell.exe PID 4012 wrote to memory of 880 4012 XClient.exe powershell.exe PID 4012 wrote to memory of 4420 4012 XClient.exe powershell.exe PID 4012 wrote to memory of 4420 4012 XClient.exe powershell.exe PID 4012 wrote to memory of 1928 4012 XClient.exe schtasks.exe PID 4012 wrote to memory of 1928 4012 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:4012 -
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:1988
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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:3356
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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:880
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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:4420
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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:1928
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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:4088
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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:2616
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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:1240
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
MD56c47b3f4e68eebd47e9332eebfd2dd4e
SHA167f0b143336d7db7b281ed3de5e877fa87261834
SHA2568c48b1f2338e5b24094821f41121d2221f1cb3200338f46df49f64d1c4bc3e0c
SHA5120acf302a9fc971ef9df65ed42c47ea17828e54dff685f4434f360556fd27cdc26a75069f00dcdc14ba174893c6fd7a2cfd8c6c07be3ce35dafee0a006914eaca
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Filesize
944B
MD565e4f01c24b55569d54d23b8efd0c8d5
SHA12c58f21418af8c0f1e118a7f3cf17d8448a8be64
SHA256c1e9cf9a0865152d180419cb3ebc77538bdbdc9d1e633eb71ad6871fbc4d4763
SHA512afaf0c200caba78650aee46bd62994c5becc073c22cb62404f783b257c78a72061e240b8678c38790b2cec1e41429161b13c6d92cc9817fe70e86abff5af2056
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Filesize
944B
MD5ef72c47dbfaae0b9b0d09f22ad4afe20
SHA15357f66ba69b89440b99d4273b74221670129338
SHA256692ec20c7039170fb199510f0436181fd155e6b4516d4d1c9e1675adf99aaa7f
SHA5127514b6bc8dc39fa618223300be27cd535dc35b18c66b4a089e2302e72b3e0cac06d88a989fa1296feb386b3cbe2084019df6430c7f895071b76e04ce559a30b4
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
39KB
MD566f5cca568b2b83c23a69295ad2c643b
SHA1b822f0bcded0f587413d84f27eb2f5fdcdb48304
SHA256971294811a8fd3c967958db073238a75573ea1db5749b8153e5f684b27f99da6
SHA512c8bf4acc4644b614715eeaf4cda10ba100afeceaab0f7b7cb627f1c6f7676308c0c73e7dbbe6833ec3da1f9c10616e2c28a9ba4fc88e180ff3e0123071c50469