Analysis
- max time kernel
151s - max time network
153s - platform
windows10_x64 - resource
win10v20210408 - submitted
31/08/2021, 04:31
General
- Target 20-20-19677.com.exe
- Size 55KB
- Sample210831-k5ltf73re2
- SHA256 bf40454532296d8028d2cc4be8f68076ee1237d5ee71f1c37736176d209ad8a0
Malware Config
Signatures
- BitRAT
BitRAT is a remote access tool written in C++ and uses leaked source code from other families.
- BitRAT Payload 3 IoCs
- suricata: ET MALWARE Observed Malicious SSL Cert (BitRAT CnC)
suricata: ET MALWARE Observed Malicious SSL Cert (BitRAT CnC)
- Drops startup file 2 IoCs
- 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.
- Suspicious behavior: EnumeratesProcesses 45 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\20-20-19677.com.exe"C:\Users\Admin\AppData\Local\Temp\20-20-19677.com.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c Copy "C:\Users\Admin\AppData\Local\Temp\20-20-19677.com.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\20-20-19677.com.exe"2⤵
- Drops startup file
-
-
C:\Users\Admin\AppData\Local\Temp\20-20-19677.com.exe"C:\Users\Admin\AppData\Local\Temp\20-20-19677.com.exe"2⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1768-135-0x0000000000400000-0x00000000007CE000-memory.dmp
memory/1768-133-0x0000000000400000-0x00000000007CE000-memory.dmp
memory/1832-118-0x0000000005690000-0x0000000005B8E000-memory.dmp
memory/1832-121-0x0000000008810000-0x0000000008811000-memory.dmp
memory/1832-120-0x0000000008460000-0x000000000864E000-memory.dmp
memory/1832-123-0x0000000007110000-0x0000000007111000-memory.dmp
memory/1832-119-0x00000000057F0000-0x00000000057F1000-memory.dmp
memory/1832-125-0x00000000050E0000-0x00000000050E1000-memory.dmp
memory/1832-114-0x0000000000E30000-0x0000000000E31000-memory.dmp
memory/1832-117-0x0000000005690000-0x0000000005691000-memory.dmp
memory/1832-116-0x0000000005B90000-0x0000000005B91000-memory.dmp