Analysis
- max time kernel
150s - max time network
121s - platform
windows10_x64 - resource
win10v20210410 - submitted
22/04/2021, 06:14
General
- Target WaybillDoc_5736357561.pdf.exe
- Size 1.6MB
- Sample210422-v2emwffd2e
- SHA256 aba011b5f83793cebc1cfb4a1ef3aecbba7a3ea766abb459363b2d8bb51f3866
Malware Config
Signatures
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- Suspicious use of SetThreadContext 3 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Program crash 2 IoCs
- Suspicious behavior: EnumeratesProcesses 5 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 19 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\WaybillDoc_5736357561.pdf.exe"C:\Users\Admin\AppData\Local\Temp\WaybillDoc_5736357561.pdf.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\WaybillDoc_5736357561.pdf.exe"C:\Users\Admin\AppData\Local\Temp\WaybillDoc_5736357561.pdf.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\WaybillDoc_5736357561.pdf.exe"C:\Users\Admin\AppData\Local\Temp\WaybillDoc_5736357561.pdf.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\v4.0.30319\AppLaunch.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"3⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1560 -s 884⤵
- Program crash
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"3⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 512 -s 884⤵
- Program crash
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/2932-131-0x0000000000400000-0x00000000004D3000-memory.dmp
memory/2932-125-0x0000000000400000-0x00000000004D3000-memory.dmp
memory/3944-121-0x0000000005090000-0x000000000558E000-memory.dmp
memory/3944-114-0x0000000000580000-0x0000000000581000-memory.dmp
memory/3944-122-0x0000000005070000-0x0000000005079000-memory.dmp
memory/3944-123-0x0000000005FE0000-0x00000000060FE000-memory.dmp
memory/3944-124-0x0000000000FD0000-0x00000000010B0000-memory.dmp
memory/3944-120-0x00000000052F0000-0x00000000052F1000-memory.dmp
memory/3944-119-0x0000000002AD0000-0x0000000002AD1000-memory.dmp
memory/3944-118-0x0000000005130000-0x0000000005131000-memory.dmp
memory/3944-117-0x0000000005590000-0x0000000005591000-memory.dmp
memory/3944-116-0x0000000004F90000-0x0000000004F91000-memory.dmp