Analysis
- max time kernel
151s - max time network
160s - platform
windows10_x64 - resource
win10v20210408 - submitted
04/09/2021, 15:01
General
- Target USE THIS.exe
- Size 2.0MB
- Sample210904-sdwa2ahdhm
- SHA256 b4a79b7fac8b571454b8d2373623a9fa825c1bc2ef6d1370b831782237d24984
Malware Config
Signatures
- BitRAT
BitRAT is a remote access tool written in C++ and uses leaked source code from other families.
- BitRAT Payload 2 IoCs
- suricata: ET MALWARE Observed Malicious SSL Cert (BitRAT CnC)
suricata: ET MALWARE Observed Malicious SSL Cert (BitRAT CnC)
- UPX packed file 2 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Adds Run key to start application 2 TTPs 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.
- 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 7 IoCs
- Suspicious behavior: RenamesItself 19 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
- Suspicious use of WriteProcessMemory 16 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\USE THIS.exe"C:\Users\Admin\AppData\Local\Temp\USE THIS.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\USE THIS.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\JbsvkxFokcDlUJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5FF3.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\USE THIS.exe"C:\Users\Admin\AppData\Local\Temp\USE THIS.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\USE THIS.exe"C:\Users\Admin\AppData\Local\Temp\USE THIS.exe"2⤵
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: RenamesItself
- 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/992-114-0x0000000000090000-0x0000000000091000-memory.dmp
memory/992-116-0x0000000005060000-0x0000000005061000-memory.dmp
memory/992-117-0x0000000004C00000-0x0000000004C01000-memory.dmp
memory/992-118-0x0000000004B60000-0x000000000505E000-memory.dmp
memory/992-119-0x0000000004D60000-0x0000000004D61000-memory.dmp
memory/992-120-0x0000000007160000-0x0000000007161000-memory.dmp
memory/992-121-0x0000000004F00000-0x0000000004F16000-memory.dmp
memory/992-122-0x0000000007670000-0x0000000007820000-memory.dmp
memory/992-123-0x000000000AD50000-0x000000000AEC3000-memory.dmp
memory/2796-133-0x0000000007372000-0x0000000007373000-memory.dmp
memory/2796-137-0x00000000081C0000-0x00000000081C1000-memory.dmp
memory/2796-127-0x0000000004DE0000-0x0000000004DE1000-memory.dmp
memory/2796-363-0x0000000009B50000-0x0000000009B51000-memory.dmp
memory/2796-130-0x00000000079B0000-0x00000000079B1000-memory.dmp
memory/2796-357-0x0000000009B70000-0x0000000009B71000-memory.dmp
memory/2796-132-0x0000000007370000-0x0000000007371000-memory.dmp
memory/2796-134-0x0000000007850000-0x0000000007851000-memory.dmp
memory/2796-135-0x00000000078F0000-0x00000000078F1000-memory.dmp
memory/2796-136-0x0000000007FE0000-0x0000000007FE1000-memory.dmp
memory/2796-164-0x0000000009C10000-0x0000000009C11000-memory.dmp
memory/2796-162-0x000000007E1A0000-0x000000007E1A1000-memory.dmp
memory/2796-139-0x0000000008090000-0x0000000008091000-memory.dmp
memory/2796-140-0x0000000008A60000-0x0000000008A61000-memory.dmp
memory/2796-141-0x0000000008920000-0x0000000008921000-memory.dmp
memory/2796-149-0x00000000098E0000-0x0000000009913000-memory.dmp
memory/2796-156-0x00000000098A0000-0x00000000098A1000-memory.dmp
memory/2796-161-0x0000000009A10000-0x0000000009A11000-memory.dmp
memory/2796-163-0x0000000007373000-0x0000000007374000-memory.dmp
memory/3796-138-0x0000000000400000-0x00000000007E4000-memory.dmp
memory/3796-129-0x0000000000400000-0x00000000007E4000-memory.dmp