Analysis
- max time kernel
149s - max time network
152s - platform
windows10_x64 - resource
win10v20210408 - submitted
28/04/2021, 08:02
General
- Target RFQ Nueva solicitud de orden de cotización 20.exe
- Size 2.3MB
- Sample210428-xltwpncqpe
- SHA256 68e1c3cd1953f50cf97c15396e47257cedb6d67d5833ea589f1260b61638823f
Malware Config
Signatures
- BitRAT
BitRAT is a remote access tool written in C++ and uses leaked source code from other families.
- BitRAT Payload 1 IoCs
- UPX packed file 2 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Uses the VBS compiler for execution 1 TTPs
- Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- 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 4 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
- Suspicious use of WriteProcessMemory 16 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\RFQ Nueva solicitud de orden de cotización 20.exe"C:\Users\Admin\AppData\Local\Temp\RFQ Nueva solicitud de orden de cotización 20.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\lcvGgu" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3091.tmp"2⤵
- Creates scheduled task(s)
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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⤵
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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⤵
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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 NtSetInformationThreadHideFromDebugger
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/656-121-0x00000000053B0000-0x00000000053BD000-memory.dmp
memory/656-123-0x0000000006570000-0x0000000006738000-memory.dmp
memory/656-118-0x0000000005520000-0x0000000005521000-memory.dmp
memory/656-119-0x0000000005350000-0x0000000005351000-memory.dmp
memory/656-120-0x0000000005680000-0x0000000005681000-memory.dmp
memory/656-114-0x0000000000900000-0x0000000000901000-memory.dmp
memory/656-122-0x0000000005520000-0x0000000005A1E000-memory.dmp
memory/656-117-0x0000000005A20000-0x0000000005A21000-memory.dmp
memory/656-124-0x0000000009B20000-0x0000000009C99000-memory.dmp
memory/656-116-0x00000000053F0000-0x00000000053F1000-memory.dmp
memory/2604-127-0x0000000000400000-0x00000000007E4000-memory.dmp
memory/2604-131-0x0000000000400000-0x00000000007E4000-memory.dmp