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Analysis
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max time kernel
150s -
max time network
155s -
platform
windows11-21h2_x64 -
resource
win11-20241007-en -
resource tags
arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system -
submitted
18/11/2024, 14:58
Behavioral task
behavioral1
Sample
XClient.exe
Resource
win11-20241007-en
General
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Target
XClient.exe
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Size
83KB
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MD5
a553d650efef4d852fb707270a57f6b8
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SHA1
80dfd72248fc1522b1f6cacf24b4258865e5bce4
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SHA256
4d87eb4b63dee3832f8a94445e8d5b7c8f1d5335650d0fab2b6bfdc3d6b591d2
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SHA512
6132fb8204e6a4fff10f9788abb63840f0d34f752f0c28aa9c49a21c38ffa14a6aa0b8bcdfad887e84aa24297dcbdacf46608ad0eada859b85cab95b4cadfd46
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SSDEEP
1536:xSteEftgm7/FDdQv78wWbG3NycZ8TufTa3sQwYPo62+2ONvNIAsF:3OldgAdbG3NV6gSqONvN8F
Malware Config
Extracted
xworm
another-limits.gl.at.ply.gg:63201
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Install_directory
%ProgramData%
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install_file
$77wsappx.exe
Signatures
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Detect Xworm Payload 2 IoCs
resource yara_rule behavioral1/memory/3180-1-0x00000000007B0000-0x00000000007CC000-memory.dmp family_xworm behavioral1/files/0x002000000002aac5-71.dat family_xworm -
Xworm family
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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.
pid Process 2076 powershell.exe 4184 powershell.exe 2988 powershell.exe 396 powershell.exe -
Drops startup file 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\$77wsappx.lnk XClient.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\$77wsappx.lnk XClient.exe -
Executes dropped EXE 2 IoCs
pid Process 4256 $77wsappx.exe 5808 $77wsappx.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3973800497-2716210218-310192997-1000\Software\Microsoft\Windows\CurrentVersion\Run\$77wsappx = "C:\\ProgramData\\$77wsappx.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 1 ip-api.com -
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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000 taskmgr.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A taskmgr.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\FriendlyName taskmgr.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1948 schtasks.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 3180 XClient.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2076 powershell.exe 2076 powershell.exe 4184 powershell.exe 4184 powershell.exe 2988 powershell.exe 2988 powershell.exe 396 powershell.exe 396 powershell.exe 3180 XClient.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 4956 taskmgr.exe -
Suspicious use of AdjustPrivilegeToken 11 IoCs
description pid Process Token: SeDebugPrivilege 3180 XClient.exe Token: SeDebugPrivilege 2076 powershell.exe Token: SeDebugPrivilege 4184 powershell.exe Token: SeDebugPrivilege 2988 powershell.exe Token: SeDebugPrivilege 396 powershell.exe Token: SeDebugPrivilege 3180 XClient.exe Token: SeDebugPrivilege 4956 taskmgr.exe Token: SeSystemProfilePrivilege 4956 taskmgr.exe Token: SeCreateGlobalPrivilege 4956 taskmgr.exe Token: SeDebugPrivilege 4256 $77wsappx.exe Token: SeDebugPrivilege 5808 $77wsappx.exe -
Suspicious use of FindShellTrayWindow 64 IoCs
pid Process 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe -
Suspicious use of SendNotifyMessage 64 IoCs
pid Process 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe 4956 taskmgr.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 3180 XClient.exe -
Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 3180 wrote to memory of 2076 3180 XClient.exe 82 PID 3180 wrote to memory of 2076 3180 XClient.exe 82 PID 3180 wrote to memory of 4184 3180 XClient.exe 84 PID 3180 wrote to memory of 4184 3180 XClient.exe 84 PID 3180 wrote to memory of 2988 3180 XClient.exe 86 PID 3180 wrote to memory of 2988 3180 XClient.exe 86 PID 3180 wrote to memory of 396 3180 XClient.exe 88 PID 3180 wrote to memory of 396 3180 XClient.exe 88 PID 3180 wrote to memory of 1948 3180 XClient.exe 90 PID 3180 wrote to memory of 1948 3180 XClient.exe 90 -
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⤵
- 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:3180 -
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:2076
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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:4184
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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:\ProgramData\$77wsappx.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2988
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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 '$77wsappx.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:396
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C:\Windows\System32\schtasks.exe"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "$77wsappx" /tr "C:\ProgramData\$77wsappx.exe"2⤵
- Scheduled Task/Job: Scheduled Task
PID:1948
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C:\Windows\system32\taskmgr.exe"C:\Windows\system32\taskmgr.exe" /01⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:4956
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C:\ProgramData\$77wsappx.exeC:\ProgramData\$77wsappx.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4256
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C:\ProgramData\$77wsappx.exeC:\ProgramData\$77wsappx.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:5808
Network
MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
83KB
MD5a553d650efef4d852fb707270a57f6b8
SHA180dfd72248fc1522b1f6cacf24b4258865e5bce4
SHA2564d87eb4b63dee3832f8a94445e8d5b7c8f1d5335650d0fab2b6bfdc3d6b591d2
SHA5126132fb8204e6a4fff10f9788abb63840f0d34f752f0c28aa9c49a21c38ffa14a6aa0b8bcdfad887e84aa24297dcbdacf46608ad0eada859b85cab95b4cadfd46
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Filesize
654B
MD52cbbb74b7da1f720b48ed31085cbd5b8
SHA179caa9a3ea8abe1b9c4326c3633da64a5f724964
SHA256e31b18f21621d9983bfdf1ea3e53884a9d58b8ffd79e0e5790da6f3a81a8b9d3
SHA512ecf02d5240e0c1c005d3ab393aa7eff62bd498c2db5905157e2bf6d29e1b663228a9583950842629d1a4caef404c8941a0c7799b1a3bd1eb890a09fdb7efcff9
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Filesize
2KB
MD5627073ee3ca9676911bee35548eff2b8
SHA14c4b68c65e2cab9864b51167d710aa29ebdcff2e
SHA25685b280a39fc31ba1e15fb06102a05b8405ff3b82feb181d4170f04e466dd647c
SHA5123c5f6c03e253b83c57e8d6f0334187dbdcdf4fa549eecd36cbc1322dca6d3ca891dc6a019c49ec2eafb88f82d0434299c31e4dfaab123acb42e0546218f311fb
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Filesize
944B
MD51a9fa92a4f2e2ec9e244d43a6a4f8fb9
SHA19910190edfaccece1dfcc1d92e357772f5dae8f7
SHA2560ee052d5333fd5fd86bc84856fec98e045f077a7ac8051651bf7c521b9706888
SHA5125d2361476fa22200e6f83883efe7dcb8c3fe7dae8d56e04e28a36e9ae1270c327b6aa161d92b239593da7661289d002c574446ecfd6bd19928209aae25e3ef64
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Filesize
944B
MD5e47c3fa11e796c492a8388c946bf1636
SHA14a090378f0db26c6f019c9203f5b27f12fa865c7
SHA2564bb861850395dcc3bec4691e8b9f0fa733b8a2d568d460a9201d65250b12fee1
SHA5128d4af4eba3019cd060561f42cff11374eafe59da5e5ad677e41d0b9198b87d6d13706e760d13c70574ed1384993a1597f886d21fe6ecd0186379a1e93db30695
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Filesize
944B
MD521017c68eaf9461301de459f4f07e888
SHA141ff30fc8446508d4c3407c79e798cf6eaa5bb73
SHA25603b321e48ff3328d9c230308914961fe110c4c7bc96c0a85a296745437bcb888
SHA512956990c11c6c1baa3665ef7ef23ef6073e0a7fcff77a93b5e605a83ff1e60b916d80d45dafb06977aed90868a273569a865cf2c623e295b5157bfff0fb2be35d
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
682B
MD570c9c7aaf19350f49763acd377035425
SHA1c06836b54ed4feccd8f95da3857e42438a6c8c57
SHA256b315ca30eb1f1f5a6352e650b25a2a4b82e2efe6f444b7589522a15ca2febabf
SHA512079f29ee35cd040d16dfa6a4092914a3b98d4e9a2c1ae4a7decdf631dd1ca8aa2227093b689951ea15539c01d8ef3d60b341830be63928ce86071bc85abb84e4