Analysis
- max time kernel
127s - max time network
150s - platform
windows10_x64 - resource
win10v20210410 - submitted
19/05/2021, 19:08
General
- Target 5d6143a1_by_Libranalysis.exe
- Size 5.1MB
- Sample210519-d92vc345le
- SHA256 cdd3d40be55bc007487b1b25d8f6bdafb6619a82fac0a15ae0462c4fd586f364
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
- Modifies WinLogon for persistence 2 TTPs 1 IoCs
- ACProtect 1.3x - 1.4x DLL software 14 IoCs
Detects file using ACProtect software.
- Executes dropped EXE 1 IoCs
- UPX packed file 16 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Loads dropped DLL 7 IoCs
- Looks up external IP address via web service 4 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- 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.
- Modifies registry class 1 IoCs
- Suspicious behavior: EnumeratesProcesses 9 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
- Suspicious use of WriteProcessMemory 24 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\5d6143a1_by_Libranalysis.exe"C:\Users\Admin\AppData\Local\Temp\5d6143a1_by_Libranalysis.exe"1⤵
- Modifies WinLogon for persistence
- Suspicious use of SetThreadContext
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\_Kfrgzbifci.vbs"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" Add-MpPreference -ExclusionPath C:\,'C:\Users\Admin\AppData\Local\google.de\chrome.exe'3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\5d6143a1_by_Libranalysis.exeC:\Users\Admin\AppData\Local\Temp\5d6143a1_by_Libranalysis.exe2⤵
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C:\Users\Admin\AppData\Local\Temp\5d6143a1_by_Libranalysis.exeC:\Users\Admin\AppData\Local\Temp\5d6143a1_by_Libranalysis.exe2⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\c3b89bbf\tor\windows32file.exe"C:\Users\Admin\AppData\Local\c3b89bbf\tor\windows32file.exe" -f torrc3⤵
- Executes dropped EXE
- Loads dropped DLL
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1508-135-0x0000000006C00000-0x0000000006C01000-memory.dmp
memory/1508-131-0x0000000006B60000-0x0000000006B61000-memory.dmp
memory/1508-205-0x0000000000D93000-0x0000000000D94000-memory.dmp
memory/1508-204-0x000000007F200000-0x000000007F201000-memory.dmp
memory/1508-176-0x0000000008EC0000-0x0000000008EC1000-memory.dmp
memory/1508-136-0x0000000007E20000-0x0000000007E21000-memory.dmp
memory/1508-175-0x0000000008D60000-0x0000000008D61000-memory.dmp
memory/1508-134-0x0000000007590000-0x0000000007591000-memory.dmp
memory/1508-125-0x0000000006D00000-0x0000000006D01000-memory.dmp
memory/1508-124-0x0000000000CA0000-0x0000000000CA1000-memory.dmp
memory/1508-133-0x0000000007520000-0x0000000007521000-memory.dmp
memory/1508-132-0x0000000007430000-0x0000000007431000-memory.dmp
memory/1508-137-0x0000000007C20000-0x0000000007C21000-memory.dmp
memory/1508-170-0x0000000008990000-0x0000000008991000-memory.dmp
memory/1508-163-0x00000000089D0000-0x0000000008A03000-memory.dmp
memory/1508-128-0x0000000000D90000-0x0000000000D91000-memory.dmp
memory/1508-129-0x0000000000D92000-0x0000000000D93000-memory.dmp
memory/1692-116-0x0000000001470000-0x0000000001474000-memory.dmp
memory/1692-117-0x0000000005560000-0x0000000005561000-memory.dmp
memory/1692-118-0x0000000005540000-0x0000000005555000-memory.dmp
memory/1692-114-0x0000000000710000-0x0000000000711000-memory.dmp
memory/2420-130-0x0000000000400000-0x0000000000BD8000-memory.dmp
memory/2420-126-0x0000000000400000-0x0000000000BD8000-memory.dmp