Analysis
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max time kernel
83s -
max time network
64s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
31-05-2024 13:59
Behavioral task
behavioral1
Sample
XClient.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
XClient.exe
Resource
win10v2004-20240426-en
General
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Target
XClient.exe
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Size
105KB
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MD5
1776474422ad23624684d38269ed0683
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SHA1
9ac322fbcc2bd9c18fe10ab338ff50fdc91977b8
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SHA256
5db58c7cb9d8c1d9ec6792b2a5fa3cc38de31f9fecbecc1d4ff2f4ac3a0340f6
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SHA512
4431c2c6c88e3604657e710d21068724646e0f3458949aac984b62464e81f534ec8404cf4a063217074fc6563e0e8329c1ce1d61647f73255e6f487c3130fc04
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SSDEEP
1536:8JroawfDQDzE1yh6lsA2l+boehSoW0Nn+6dOFRGaPcUk/uoDjSBSc7UtYV8:uZDg02sAO+bounNOfGbv1W0cgte8
Malware Config
Extracted
xworm
19.ip.gl.ply.gg:65468
speed-wheat.gl.at.ply.gg:65468
XWorm V5.2:123
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Install_directory
%AppData%
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install_file
Delta.exe
Signatures
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Detect Xworm Payload 2 IoCs
Processes:
resource yara_rule behavioral2/memory/3996-0-0x0000000000F00000-0x0000000000F20000-memory.dmp family_xworm C:\Users\Admin\AppData\Roaming\Delta.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 1780 powershell.exe 4080 powershell.exe 4300 powershell.exe 1184 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 -
Drops startup file 2 IoCs
Processes:
XClient.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Delta.lnk XClient.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Delta.lnk XClient.exe -
Executes dropped EXE 1 IoCs
Processes:
Delta.exepid process 3004 Delta.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
XClient.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Delta = "C:\\Users\\Admin\\AppData\\Roaming\\Delta.exe" XClient.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
Processes:
taskmgr.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000 taskmgr.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A taskmgr.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\FriendlyName taskmgr.exe -
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 20 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exeXClient.exetaskmgr.exepid process 1780 powershell.exe 1780 powershell.exe 4080 powershell.exe 4080 powershell.exe 4300 powershell.exe 4300 powershell.exe 1184 powershell.exe 1184 powershell.exe 3996 XClient.exe 4896 taskmgr.exe 4896 taskmgr.exe 4896 taskmgr.exe 4896 taskmgr.exe 4896 taskmgr.exe 4896 taskmgr.exe 4896 taskmgr.exe 4896 taskmgr.exe 4896 taskmgr.exe 4896 taskmgr.exe 4896 taskmgr.exe -
Suspicious use of AdjustPrivilegeToken 10 IoCs
Processes:
XClient.exepowershell.exepowershell.exepowershell.exepowershell.exeDelta.exetaskmgr.exedescription pid process Token: SeDebugPrivilege 3996 XClient.exe Token: SeDebugPrivilege 1780 powershell.exe Token: SeDebugPrivilege 4080 powershell.exe Token: SeDebugPrivilege 4300 powershell.exe Token: SeDebugPrivilege 1184 powershell.exe Token: SeDebugPrivilege 3996 XClient.exe Token: SeDebugPrivilege 3004 Delta.exe Token: SeDebugPrivilege 4896 taskmgr.exe Token: SeSystemProfilePrivilege 4896 taskmgr.exe Token: SeCreateGlobalPrivilege 4896 taskmgr.exe -
Suspicious use of FindShellTrayWindow 22 IoCs
Processes:
taskmgr.exepid process 4896 taskmgr.exe 4896 taskmgr.exe 4896 taskmgr.exe 4896 taskmgr.exe 4896 taskmgr.exe 4896 taskmgr.exe 4896 taskmgr.exe 4896 taskmgr.exe 4896 taskmgr.exe 4896 taskmgr.exe 4896 taskmgr.exe 4896 taskmgr.exe 4896 taskmgr.exe 4896 taskmgr.exe 4896 taskmgr.exe 4896 taskmgr.exe 4896 taskmgr.exe 4896 taskmgr.exe 4896 taskmgr.exe 4896 taskmgr.exe 4896 taskmgr.exe 4896 taskmgr.exe -
Suspicious use of SendNotifyMessage 22 IoCs
Processes:
taskmgr.exepid process 4896 taskmgr.exe 4896 taskmgr.exe 4896 taskmgr.exe 4896 taskmgr.exe 4896 taskmgr.exe 4896 taskmgr.exe 4896 taskmgr.exe 4896 taskmgr.exe 4896 taskmgr.exe 4896 taskmgr.exe 4896 taskmgr.exe 4896 taskmgr.exe 4896 taskmgr.exe 4896 taskmgr.exe 4896 taskmgr.exe 4896 taskmgr.exe 4896 taskmgr.exe 4896 taskmgr.exe 4896 taskmgr.exe 4896 taskmgr.exe 4896 taskmgr.exe 4896 taskmgr.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
XClient.exepid process 3996 XClient.exe -
Suspicious use of WriteProcessMemory 10 IoCs
Processes:
XClient.exedescription pid process target process PID 3996 wrote to memory of 1780 3996 XClient.exe powershell.exe PID 3996 wrote to memory of 1780 3996 XClient.exe powershell.exe PID 3996 wrote to memory of 4080 3996 XClient.exe powershell.exe PID 3996 wrote to memory of 4080 3996 XClient.exe powershell.exe PID 3996 wrote to memory of 4300 3996 XClient.exe powershell.exe PID 3996 wrote to memory of 4300 3996 XClient.exe powershell.exe PID 3996 wrote to memory of 1184 3996 XClient.exe powershell.exe PID 3996 wrote to memory of 1184 3996 XClient.exe powershell.exe PID 3996 wrote to memory of 1068 3996 XClient.exe schtasks.exe PID 3996 wrote to memory of 1068 3996 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:3996 -
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:1780
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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:4080
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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\Delta.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4300
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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 'Delta.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1184
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C:\Windows\System32\schtasks.exe"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Delta" /tr "C:\Users\Admin\AppData\Roaming\Delta.exe"2⤵
- Creates scheduled task(s)
PID:1068
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C:\Users\Admin\AppData\Roaming\Delta.exeC:\Users\Admin\AppData\Roaming\Delta.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3004
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C:\Windows\system32\taskmgr.exe"C:\Windows\system32\taskmgr.exe" /41⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:4896
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Replay Monitor
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Downloads
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Filesize
2KB
MD5d85ba6ff808d9e5444a4b369f5bc2730
SHA131aa9d96590fff6981b315e0b391b575e4c0804a
SHA25684739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
SHA5128c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249
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Filesize
944B
MD577d622bb1a5b250869a3238b9bc1402b
SHA1d47f4003c2554b9dfc4c16f22460b331886b191b
SHA256f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb
SHA512d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9
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Filesize
944B
MD59c740b7699e2363ac4ecdf496520ca35
SHA1aa8691a8c56500d82c5fc8c35209bc6fe50ab1d9
SHA256be96c91b62ba9ba7072ab89e66543328c9e4395150f9dbe8067332d94a3ecc61
SHA5128885683f96353582eb871209e766e7eba1a72a2837ce27ea298b7b5b169621d1fa3fce25346b6bfd258b52642644234da9559d4e765a2023a5a5fc1f544cc7af
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Filesize
944B
MD592075279f2dbcaa5724ee5a47e49712f
SHA18dd3e2faa8432dde978946ebaf9054f7c6e0b2cb
SHA256fd985ddd090621af25aa77aebff689c95ea7679ff0e81887124b2802ae3e9442
SHA512744c62556233d9872f43ffb5a5a98aee20a44834436306f0a948c8c4072bdb46ef8044616593747edd645caaee60faf8b14fedb2d6df5f6019b5c73357d80d22
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
105KB
MD51776474422ad23624684d38269ed0683
SHA19ac322fbcc2bd9c18fe10ab338ff50fdc91977b8
SHA2565db58c7cb9d8c1d9ec6792b2a5fa3cc38de31f9fecbecc1d4ff2f4ac3a0340f6
SHA5124431c2c6c88e3604657e710d21068724646e0f3458949aac984b62464e81f534ec8404cf4a063217074fc6563e0e8329c1ce1d61647f73255e6f487c3130fc04
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Filesize
759B
MD5aee02c655b9ae7747251daedff07e19c
SHA102cbd114dc66b2becd87d1e298a78bd1200f69a3
SHA2562951d82243de9dbc15da09f60db07b4fc4d4ed8bb8613727e4ffb9f60bd6ffc6
SHA512451b717f1a440e4ce5e067e80ea84abe1fa248aa5da00a4fa0a485d705b00630d3fb8160984d081259bdd7114da457b91fe22f570bc9f5cf081473ea87d2ac44