Analysis
- max time kernel
151s - max time network
125s - platform
windows10_x64 - resource
win10v20210408 - submitted
09/07/2021, 15:55
General
- Target 7db01b21b6b4c6e977c8f96e204495b11d566c780c51198198195ec7045c7dce.exe
- Size 868KB
- Sample210709-fx2j2syj5s
- SHA256 7db01b21b6b4c6e977c8f96e204495b11d566c780c51198198195ec7045c7dce
Malware Config
Signatures
- CustAttr .NET packer 1 IoCs
Detects CustAttr .NET packer in memory.
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- Suspicious use of SetThreadContext 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Program crash 1 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
- Suspicious use of WriteProcessMemory 15 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\7db01b21b6b4c6e977c8f96e204495b11d566c780c51198198195ec7045c7dce.exe"C:\Users\Admin\AppData\Local\Temp\7db01b21b6b4c6e977c8f96e204495b11d566c780c51198198195ec7045c7dce.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\7db01b21b6b4c6e977c8f96e204495b11d566c780c51198198195ec7045c7dce.exe"C:\Users\Admin\AppData\Local\Temp\7db01b21b6b4c6e977c8f96e204495b11d566c780c51198198195ec7045c7dce.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\7db01b21b6b4c6e977c8f96e204495b11d566c780c51198198195ec7045c7dce.exe"C:\Users\Admin\AppData\Local\Temp\7db01b21b6b4c6e977c8f96e204495b11d566c780c51198198195ec7045c7dce.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"3⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1284 -s 924⤵
- Program crash
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/2676-124-0x0000000000400000-0x0000000000433000-memory.dmp
memory/2676-130-0x0000000000400000-0x0000000000433000-memory.dmp
memory/3728-118-0x0000000004E80000-0x0000000004E81000-memory.dmp
memory/3728-120-0x0000000004D30000-0x0000000004D31000-memory.dmp
memory/3728-121-0x0000000004DE0000-0x0000000004DE5000-memory.dmp
memory/3728-122-0x0000000005A90000-0x0000000005B42000-memory.dmp
memory/3728-123-0x0000000007FE0000-0x0000000008055000-memory.dmp
memory/3728-119-0x0000000004CA0000-0x000000000519E000-memory.dmp
memory/3728-114-0x0000000000430000-0x0000000000431000-memory.dmp
memory/3728-117-0x0000000004D40000-0x0000000004D41000-memory.dmp
memory/3728-116-0x00000000051A0000-0x00000000051A1000-memory.dmp