Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
02/04/2024, 13:38
Behavioral task
behavioral1
Sample
4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe
Resource
win10v2004-20240226-en
General
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Target
4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe
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Size
70KB
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MD5
109adf5a32829b151d536e30a81ee96b
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SHA1
dc23006a97e7d5bc34eedec563432e63ed6a226a
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SHA256
4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311
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SHA512
74e7fb13e195dcf6b8ed0f40c034925c3762b2e0c43c8faede99ce79a4b07966ff5336769db3f9f5bb4c0478cefc879d59b43d5ded5bda3e75d19bd0a1e9e9e5
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SSDEEP
1536:QeYZA06UMG73jWw9o5zeS6LQR9bAayaIMbckM6mfOWcNFOfab:QfZxfMGTFXS6LQR9bAaZbfsfOPMab
Malware Config
Extracted
xworm
involved-hurt.gl.at.ply.gg:35238
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Install_directory
%LocalAppData%
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install_file
WindowsHealthSystem.exe
Signatures
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Detect Xworm Payload 2 IoCs
resource yara_rule behavioral2/memory/3924-0-0x0000000000510000-0x0000000000528000-memory.dmp family_xworm behavioral2/files/0x000f00000002311d-71.dat family_xworm -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation 4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe -
Drops startup file 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\WindowsHealthSystem.lnk 4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\WindowsHealthSystem.lnk 4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe -
Executes dropped EXE 3 IoCs
pid Process 740 WindowsHealthSystem.exe 1924 WindowsHealthSystem.exe 1132 WindowsHealthSystem.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WindowsHealthSystem = "C:\\Users\\Admin\\AppData\\Local\\WindowsHealthSystem.exe" 4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.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.
pid Process 2332 schtasks.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 3924 4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe -
Suspicious behavior: EnumeratesProcesses 9 IoCs
pid Process 3908 powershell.exe 3908 powershell.exe 2696 powershell.exe 2696 powershell.exe 4132 powershell.exe 4132 powershell.exe 4188 powershell.exe 4188 powershell.exe 3924 4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe -
Suspicious use of AdjustPrivilegeToken 9 IoCs
description pid Process Token: SeDebugPrivilege 3924 4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe Token: SeDebugPrivilege 3908 powershell.exe Token: SeDebugPrivilege 2696 powershell.exe Token: SeDebugPrivilege 4132 powershell.exe Token: SeDebugPrivilege 4188 powershell.exe Token: SeDebugPrivilege 3924 4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe Token: SeDebugPrivilege 740 WindowsHealthSystem.exe Token: SeDebugPrivilege 1924 WindowsHealthSystem.exe Token: SeDebugPrivilege 1132 WindowsHealthSystem.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 3924 4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe -
Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 3924 wrote to memory of 3908 3924 4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe 91 PID 3924 wrote to memory of 3908 3924 4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe 91 PID 3924 wrote to memory of 2696 3924 4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe 94 PID 3924 wrote to memory of 2696 3924 4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe 94 PID 3924 wrote to memory of 4132 3924 4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe 96 PID 3924 wrote to memory of 4132 3924 4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe 96 PID 3924 wrote to memory of 4188 3924 4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe 98 PID 3924 wrote to memory of 4188 3924 4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe 98 PID 3924 wrote to memory of 2332 3924 4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe 101 PID 3924 wrote to memory of 2332 3924 4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe 101 -
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\4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe"C:\Users\Admin\AppData\Local\Temp\4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.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:3924 -
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\4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe'2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3908
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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 '4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe'2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2696
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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\Local\WindowsHealthSystem.exe'2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4132
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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 'WindowsHealthSystem.exe'2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4188
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C:\Windows\System32\schtasks.exe"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "WindowsHealthSystem" /tr "C:\Users\Admin\AppData\Local\WindowsHealthSystem.exe"2⤵
- Creates scheduled task(s)
PID:2332
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C:\Users\Admin\AppData\Local\WindowsHealthSystem.exeC:\Users\Admin\AppData\Local\WindowsHealthSystem.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:740
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C:\Users\Admin\AppData\Local\WindowsHealthSystem.exeC:\Users\Admin\AppData\Local\WindowsHealthSystem.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1924
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C:\Users\Admin\AppData\Local\WindowsHealthSystem.exeC:\Users\Admin\AppData\Local\WindowsHealthSystem.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1132
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
MD52e907f77659a6601fcc408274894da2e
SHA19f5b72abef1cd7145bf37547cdb1b9254b4efe9d
SHA256385da35673330e21ac02545220552fe301fe54dedefbdafc097ac4342a295233
SHA51234fa0fff24f6550f55f828541aaefe5d75c86f8f0842d54b50065e9746f9662bb7209c74c9a9571540b9855bb3851f01db613190024e89b198d485bb5dc07721
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Filesize
944B
MD567e8893616f805af2411e2f4a1411b2a
SHA139bf1e1a0ddf46ce7c136972120f512d92827dcd
SHA256ca0dfe104c1bf27f7e01999fcdabc16c6400c3da937c832c26bdbca322381d31
SHA512164e911a9935e75c8be1a6ec3d31199a16ba2a1064da6c09d771b2a38dd7fddd142301ef55d67d90f306d3a454a1ce7b72e129ea42e44500b9b8c623a8d98b4d
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Filesize
944B
MD510fb30dc297f99d6ebafa5fee8b24fa2
SHA176904509313a49a765edcde26b69c3a61f9fa225
SHA256567bcacac120711fc04bf8e6c8cd0bff7b61e8ee0a6316254d1005ebb1264e6a
SHA512c42ace1ea0923fa55592f4f486a508ea56997fdbe0200016b0fc16a33452fc28e4530129a315b3b3a5ede37a07097c13a0eb310c9e91e5d97bb7ce7b955b9498
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
70KB
MD5109adf5a32829b151d536e30a81ee96b
SHA1dc23006a97e7d5bc34eedec563432e63ed6a226a
SHA2564b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311
SHA51274e7fb13e195dcf6b8ed0f40c034925c3762b2e0c43c8faede99ce79a4b07966ff5336769db3f9f5bb4c0478cefc879d59b43d5ded5bda3e75d19bd0a1e9e9e5