Analysis
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max time kernel
150s -
max time network
141s -
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, 13:51
Behavioral task
behavioral1
Sample
4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe
Resource
win7-20240221-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/4892-0-0x00000000008B0000-0x00000000008C8000-memory.dmp family_xworm behavioral2/files/0x000d000000023115-72.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-1-5-21-275798769-4264537674-1142822080-1000\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 4592 WindowsHealthSystem.exe 4792 WindowsHealthSystem.exe 388 WindowsHealthSystem.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\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 4960 schtasks.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 4892 4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe -
Suspicious behavior: EnumeratesProcesses 9 IoCs
pid Process 4872 powershell.exe 4872 powershell.exe 2304 powershell.exe 2304 powershell.exe 4576 powershell.exe 4576 powershell.exe 64 powershell.exe 64 powershell.exe 4892 4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe -
Suspicious use of AdjustPrivilegeToken 9 IoCs
description pid Process Token: SeDebugPrivilege 4892 4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe Token: SeDebugPrivilege 4872 powershell.exe Token: SeDebugPrivilege 2304 powershell.exe Token: SeDebugPrivilege 4576 powershell.exe Token: SeDebugPrivilege 64 powershell.exe Token: SeDebugPrivilege 4892 4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe Token: SeDebugPrivilege 4592 WindowsHealthSystem.exe Token: SeDebugPrivilege 4792 WindowsHealthSystem.exe Token: SeDebugPrivilege 388 WindowsHealthSystem.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 4892 4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe -
Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 4892 wrote to memory of 4872 4892 4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe 91 PID 4892 wrote to memory of 4872 4892 4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe 91 PID 4892 wrote to memory of 2304 4892 4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe 93 PID 4892 wrote to memory of 2304 4892 4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe 93 PID 4892 wrote to memory of 4576 4892 4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe 97 PID 4892 wrote to memory of 4576 4892 4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe 97 PID 4892 wrote to memory of 64 4892 4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe 99 PID 4892 wrote to memory of 64 4892 4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe 99 PID 4892 wrote to memory of 4960 4892 4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe 102 PID 4892 wrote to memory of 4960 4892 4b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311.exe 102 -
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:4892 -
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:4872
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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:2304
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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:4576
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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:64
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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:4960
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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:4592
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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:4792
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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:388
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
MD5bd5940f08d0be56e65e5f2aaf47c538e
SHA1d7e31b87866e5e383ab5499da64aba50f03e8443
SHA2562d2f364c75bd2897504249f42cdf1d19374f5230aad68fa9154ea3d03e3031a6
SHA512c34d10c7e07da44a180fae9889b61f08903aa84e8ddfa80c31c272b1ef9d491b8cec6b8a4c836c3cb1583fe8f4955c6a8db872515de3a9e10eae09610c959406
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Filesize
944B
MD5f41f42c322498af0591f396c59dd4304
SHA1e1e5aa68d73d48bc5e743a34f6c0fa8960ff7514
SHA256d8bd9a4a363ff2ac2dc887759ec6ba4215a4ce0925a8fb9c531573458ee4a31c
SHA5122328a1b402b4fb0de9c451fb630eab58549129d3bcfb70b9834cfbd16065ebaadec006b309ea17ac182d34c53e01705cbc9e0196eb0cbd62600c866e79a1844f
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Filesize
944B
MD596e3b86880fedd5afc001d108732a3e5
SHA18fc17b39d744a9590a6d5897012da5e6757439a3
SHA256c3077e4cadb4ed246c02abe55aa6cf832fee4c2546b7addb7d22cd1c7c8c1294
SHA512909b1968f7204fa7029109b02232d8cc5438f6b4dc7c9044e4e47c59fcee538199b13029e36592b12ed573d48a308dd4822d2ced4129ab08d4111897e02be55d
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
70KB
MD5109adf5a32829b151d536e30a81ee96b
SHA1dc23006a97e7d5bc34eedec563432e63ed6a226a
SHA2564b9d898379e5dd1d260c1706aa04aa8270994835a523bb83695062d92c830311
SHA51274e7fb13e195dcf6b8ed0f40c034925c3762b2e0c43c8faede99ce79a4b07966ff5336769db3f9f5bb4c0478cefc879d59b43d5ded5bda3e75d19bd0a1e9e9e5