Analysis
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max time kernel
150s -
max time network
147s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
08-11-2020 17:48
Static task
static1
Behavioral task
behavioral1
Sample
fd67a9e95f6d0b78948950ed2e73ea275c7c5155d0e04d39f3dfebf8659ae806.exe
Resource
win7v20201028
General
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Target
fd67a9e95f6d0b78948950ed2e73ea275c7c5155d0e04d39f3dfebf8659ae806.exe
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Size
251KB
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MD5
32fc438bb5f1cb7368b8e01a47f2d574
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SHA1
6b9e4dad2546a0e62c7bbb12a24329bec522532b
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SHA256
fd67a9e95f6d0b78948950ed2e73ea275c7c5155d0e04d39f3dfebf8659ae806
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SHA512
9205ee338417f4833b40c1c03e7be3079b583726054750ee6d033e16e395e9f5ddaeb463ef827e99368e36751bb6a3ead0e6f649a8cd4e28a83528c4aebdb41c
Malware Config
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
Processes:
fd67a9e95f6d0b78948950ed2e73ea275c7c5155d0e04d39f3dfebf8659ae806.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\AppData\\Roaming\\Temp\\Microsoft.NET.exe" fd67a9e95f6d0b78948950ed2e73ea275c7c5155d0e04d39f3dfebf8659ae806.exe -
Modifies security service 2 TTPs 1 IoCs
Processes:
Microsoft.NET.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wscsvc\Start = "4" Microsoft.NET.exe -
Executes dropped EXE 1 IoCs
Processes:
Microsoft.NET.exepid process 3496 Microsoft.NET.exe -
Processes:
resource yara_rule C:\Users\Admin\AppData\Roaming\Temp\Microsoft.NET.exe upx C:\Users\Admin\AppData\Roaming\Temp\Microsoft.NET.exe upx -
Processes:
Microsoft.NET.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" Microsoft.NET.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" Microsoft.NET.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
fd67a9e95f6d0b78948950ed2e73ea275c7c5155d0e04d39f3dfebf8659ae806.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\Microsoft.NET = "C:\\Users\\Admin\\AppData\\Roaming\\Temp\\Microsoft.NET.exe" fd67a9e95f6d0b78948950ed2e73ea275c7c5155d0e04d39f3dfebf8659ae806.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
Microsoft.NET.exepid process 3496 Microsoft.NET.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
Processes:
fd67a9e95f6d0b78948950ed2e73ea275c7c5155d0e04d39f3dfebf8659ae806.exeMicrosoft.NET.exedescription pid process Token: SeIncreaseQuotaPrivilege 4696 fd67a9e95f6d0b78948950ed2e73ea275c7c5155d0e04d39f3dfebf8659ae806.exe Token: SeSecurityPrivilege 4696 fd67a9e95f6d0b78948950ed2e73ea275c7c5155d0e04d39f3dfebf8659ae806.exe Token: SeTakeOwnershipPrivilege 4696 fd67a9e95f6d0b78948950ed2e73ea275c7c5155d0e04d39f3dfebf8659ae806.exe Token: SeLoadDriverPrivilege 4696 fd67a9e95f6d0b78948950ed2e73ea275c7c5155d0e04d39f3dfebf8659ae806.exe Token: SeSystemProfilePrivilege 4696 fd67a9e95f6d0b78948950ed2e73ea275c7c5155d0e04d39f3dfebf8659ae806.exe Token: SeSystemtimePrivilege 4696 fd67a9e95f6d0b78948950ed2e73ea275c7c5155d0e04d39f3dfebf8659ae806.exe Token: SeProfSingleProcessPrivilege 4696 fd67a9e95f6d0b78948950ed2e73ea275c7c5155d0e04d39f3dfebf8659ae806.exe Token: SeIncBasePriorityPrivilege 4696 fd67a9e95f6d0b78948950ed2e73ea275c7c5155d0e04d39f3dfebf8659ae806.exe Token: SeCreatePagefilePrivilege 4696 fd67a9e95f6d0b78948950ed2e73ea275c7c5155d0e04d39f3dfebf8659ae806.exe Token: SeBackupPrivilege 4696 fd67a9e95f6d0b78948950ed2e73ea275c7c5155d0e04d39f3dfebf8659ae806.exe Token: SeRestorePrivilege 4696 fd67a9e95f6d0b78948950ed2e73ea275c7c5155d0e04d39f3dfebf8659ae806.exe Token: SeShutdownPrivilege 4696 fd67a9e95f6d0b78948950ed2e73ea275c7c5155d0e04d39f3dfebf8659ae806.exe Token: SeDebugPrivilege 4696 fd67a9e95f6d0b78948950ed2e73ea275c7c5155d0e04d39f3dfebf8659ae806.exe Token: SeSystemEnvironmentPrivilege 4696 fd67a9e95f6d0b78948950ed2e73ea275c7c5155d0e04d39f3dfebf8659ae806.exe Token: SeChangeNotifyPrivilege 4696 fd67a9e95f6d0b78948950ed2e73ea275c7c5155d0e04d39f3dfebf8659ae806.exe Token: SeRemoteShutdownPrivilege 4696 fd67a9e95f6d0b78948950ed2e73ea275c7c5155d0e04d39f3dfebf8659ae806.exe Token: SeUndockPrivilege 4696 fd67a9e95f6d0b78948950ed2e73ea275c7c5155d0e04d39f3dfebf8659ae806.exe Token: SeManageVolumePrivilege 4696 fd67a9e95f6d0b78948950ed2e73ea275c7c5155d0e04d39f3dfebf8659ae806.exe Token: SeImpersonatePrivilege 4696 fd67a9e95f6d0b78948950ed2e73ea275c7c5155d0e04d39f3dfebf8659ae806.exe Token: SeCreateGlobalPrivilege 4696 fd67a9e95f6d0b78948950ed2e73ea275c7c5155d0e04d39f3dfebf8659ae806.exe Token: 33 4696 fd67a9e95f6d0b78948950ed2e73ea275c7c5155d0e04d39f3dfebf8659ae806.exe Token: 34 4696 fd67a9e95f6d0b78948950ed2e73ea275c7c5155d0e04d39f3dfebf8659ae806.exe Token: 35 4696 fd67a9e95f6d0b78948950ed2e73ea275c7c5155d0e04d39f3dfebf8659ae806.exe Token: 36 4696 fd67a9e95f6d0b78948950ed2e73ea275c7c5155d0e04d39f3dfebf8659ae806.exe Token: SeIncreaseQuotaPrivilege 3496 Microsoft.NET.exe Token: SeSecurityPrivilege 3496 Microsoft.NET.exe Token: SeTakeOwnershipPrivilege 3496 Microsoft.NET.exe Token: SeLoadDriverPrivilege 3496 Microsoft.NET.exe Token: SeSystemProfilePrivilege 3496 Microsoft.NET.exe Token: SeSystemtimePrivilege 3496 Microsoft.NET.exe Token: SeProfSingleProcessPrivilege 3496 Microsoft.NET.exe Token: SeIncBasePriorityPrivilege 3496 Microsoft.NET.exe Token: SeCreatePagefilePrivilege 3496 Microsoft.NET.exe Token: SeBackupPrivilege 3496 Microsoft.NET.exe Token: SeRestorePrivilege 3496 Microsoft.NET.exe Token: SeShutdownPrivilege 3496 Microsoft.NET.exe Token: SeDebugPrivilege 3496 Microsoft.NET.exe Token: SeSystemEnvironmentPrivilege 3496 Microsoft.NET.exe Token: SeChangeNotifyPrivilege 3496 Microsoft.NET.exe Token: SeRemoteShutdownPrivilege 3496 Microsoft.NET.exe Token: SeUndockPrivilege 3496 Microsoft.NET.exe Token: SeManageVolumePrivilege 3496 Microsoft.NET.exe Token: SeImpersonatePrivilege 3496 Microsoft.NET.exe Token: SeCreateGlobalPrivilege 3496 Microsoft.NET.exe Token: 33 3496 Microsoft.NET.exe Token: 34 3496 Microsoft.NET.exe Token: 35 3496 Microsoft.NET.exe Token: 36 3496 Microsoft.NET.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
Microsoft.NET.exepid process 3496 Microsoft.NET.exe -
Suspicious use of WriteProcessMemory 37 IoCs
Processes:
fd67a9e95f6d0b78948950ed2e73ea275c7c5155d0e04d39f3dfebf8659ae806.execmd.execmd.exeMicrosoft.NET.exedescription pid process target process PID 4696 wrote to memory of 3592 4696 fd67a9e95f6d0b78948950ed2e73ea275c7c5155d0e04d39f3dfebf8659ae806.exe cmd.exe PID 4696 wrote to memory of 3592 4696 fd67a9e95f6d0b78948950ed2e73ea275c7c5155d0e04d39f3dfebf8659ae806.exe cmd.exe PID 4696 wrote to memory of 3592 4696 fd67a9e95f6d0b78948950ed2e73ea275c7c5155d0e04d39f3dfebf8659ae806.exe cmd.exe PID 4696 wrote to memory of 2176 4696 fd67a9e95f6d0b78948950ed2e73ea275c7c5155d0e04d39f3dfebf8659ae806.exe cmd.exe PID 4696 wrote to memory of 2176 4696 fd67a9e95f6d0b78948950ed2e73ea275c7c5155d0e04d39f3dfebf8659ae806.exe cmd.exe PID 4696 wrote to memory of 2176 4696 fd67a9e95f6d0b78948950ed2e73ea275c7c5155d0e04d39f3dfebf8659ae806.exe cmd.exe PID 4696 wrote to memory of 3496 4696 fd67a9e95f6d0b78948950ed2e73ea275c7c5155d0e04d39f3dfebf8659ae806.exe Microsoft.NET.exe PID 4696 wrote to memory of 3496 4696 fd67a9e95f6d0b78948950ed2e73ea275c7c5155d0e04d39f3dfebf8659ae806.exe Microsoft.NET.exe PID 4696 wrote to memory of 3496 4696 fd67a9e95f6d0b78948950ed2e73ea275c7c5155d0e04d39f3dfebf8659ae806.exe Microsoft.NET.exe PID 3592 wrote to memory of 420 3592 cmd.exe attrib.exe PID 3592 wrote to memory of 420 3592 cmd.exe attrib.exe PID 3592 wrote to memory of 420 3592 cmd.exe attrib.exe PID 2176 wrote to memory of 784 2176 cmd.exe attrib.exe PID 2176 wrote to memory of 784 2176 cmd.exe attrib.exe PID 2176 wrote to memory of 784 2176 cmd.exe attrib.exe PID 3496 wrote to memory of 748 3496 Microsoft.NET.exe notepad.exe PID 3496 wrote to memory of 748 3496 Microsoft.NET.exe notepad.exe PID 3496 wrote to memory of 748 3496 Microsoft.NET.exe notepad.exe PID 3496 wrote to memory of 748 3496 Microsoft.NET.exe notepad.exe PID 3496 wrote to memory of 748 3496 Microsoft.NET.exe notepad.exe PID 3496 wrote to memory of 748 3496 Microsoft.NET.exe notepad.exe PID 3496 wrote to memory of 748 3496 Microsoft.NET.exe notepad.exe PID 3496 wrote to memory of 748 3496 Microsoft.NET.exe notepad.exe PID 3496 wrote to memory of 748 3496 Microsoft.NET.exe notepad.exe PID 3496 wrote to memory of 748 3496 Microsoft.NET.exe notepad.exe PID 3496 wrote to memory of 748 3496 Microsoft.NET.exe notepad.exe PID 3496 wrote to memory of 748 3496 Microsoft.NET.exe notepad.exe PID 3496 wrote to memory of 748 3496 Microsoft.NET.exe notepad.exe PID 3496 wrote to memory of 748 3496 Microsoft.NET.exe notepad.exe PID 3496 wrote to memory of 748 3496 Microsoft.NET.exe notepad.exe PID 3496 wrote to memory of 748 3496 Microsoft.NET.exe notepad.exe PID 3496 wrote to memory of 748 3496 Microsoft.NET.exe notepad.exe PID 3496 wrote to memory of 748 3496 Microsoft.NET.exe notepad.exe PID 3496 wrote to memory of 748 3496 Microsoft.NET.exe notepad.exe PID 3496 wrote to memory of 748 3496 Microsoft.NET.exe notepad.exe PID 3496 wrote to memory of 748 3496 Microsoft.NET.exe notepad.exe PID 3496 wrote to memory of 748 3496 Microsoft.NET.exe notepad.exe -
Views/modifies file attributes 1 TTPs 2 IoCs
Processes:
attrib.exeattrib.exepid process 420 attrib.exe 784 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\fd67a9e95f6d0b78948950ed2e73ea275c7c5155d0e04d39f3dfebf8659ae806.exe"C:\Users\Admin\AppData\Local\Temp\fd67a9e95f6d0b78948950ed2e73ea275c7c5155d0e04d39f3dfebf8659ae806.exe"1⤵
- Modifies WinLogon for persistence
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\fd67a9e95f6d0b78948950ed2e73ea275c7c5155d0e04d39f3dfebf8659ae806.exe" +s +h2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\attrib.exeattrib "C:\Users\Admin\AppData\Local\Temp\fd67a9e95f6d0b78948950ed2e73ea275c7c5155d0e04d39f3dfebf8659ae806.exe" +s +h3⤵
- Views/modifies file attributes
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\attrib.exeattrib "C:\Users\Admin\AppData\Local\Temp" +s +h3⤵
- Views/modifies file attributes
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C:\Users\Admin\AppData\Roaming\Temp\Microsoft.NET.exe"C:\Users\Admin\AppData\Roaming\Temp\Microsoft.NET.exe"2⤵
- Modifies security service
- Executes dropped EXE
- Windows security modification
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\notepad.exenotepad3⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Roaming\Temp\Microsoft.NET.exeMD5
32fc438bb5f1cb7368b8e01a47f2d574
SHA16b9e4dad2546a0e62c7bbb12a24329bec522532b
SHA256fd67a9e95f6d0b78948950ed2e73ea275c7c5155d0e04d39f3dfebf8659ae806
SHA5129205ee338417f4833b40c1c03e7be3079b583726054750ee6d033e16e395e9f5ddaeb463ef827e99368e36751bb6a3ead0e6f649a8cd4e28a83528c4aebdb41c
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C:\Users\Admin\AppData\Roaming\Temp\Microsoft.NET.exeMD5
32fc438bb5f1cb7368b8e01a47f2d574
SHA16b9e4dad2546a0e62c7bbb12a24329bec522532b
SHA256fd67a9e95f6d0b78948950ed2e73ea275c7c5155d0e04d39f3dfebf8659ae806
SHA5129205ee338417f4833b40c1c03e7be3079b583726054750ee6d033e16e395e9f5ddaeb463ef827e99368e36751bb6a3ead0e6f649a8cd4e28a83528c4aebdb41c
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memory/420-5-0x0000000000000000-mapping.dmp
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memory/748-8-0x0000000002F80000-0x0000000002F81000-memory.dmpFilesize
4KB
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memory/748-7-0x0000000000000000-mapping.dmp
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memory/748-9-0x0000000000000000-mapping.dmp
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memory/784-6-0x0000000000000000-mapping.dmp
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memory/2176-1-0x0000000000000000-mapping.dmp
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memory/3496-2-0x0000000000000000-mapping.dmp
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memory/3592-0-0x0000000000000000-mapping.dmp