Analysis
- max time kernel
149s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
28/02/2024, 02:34
General
- Target aac87e479dbe5e55246d09809cc5d93b.exe
- Size 9.8MB
- Sample240228-c2tt4shc4s
- SHA256 849c5c0915f66536f76f5b82abf84a60dbca004613f1aedce7561110d79a2185
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
- ACProtect 1.3x - 1.4x DLL software 7 IoCs
Detects file using ACProtect software.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- Loads dropped DLL 9 IoCs
- UPX packed file 28 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Looks up external IP address via web service 9 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\aac87e479dbe5e55246d09809cc5d93b.exe"C:\Users\Admin\AppData\Local\Temp\aac87e479dbe5e55246d09809cc5d93b.exe"1⤵
- Checks computer location settings
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\18c4d7d0\tor\winsys64.exe"C:\Users\Admin\AppData\Local\18c4d7d0\tor\winsys64.exe" -f torrc2⤵
- Executes dropped EXE
- Loads dropped DLL
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
cached-microdesc-consensus.tmp
cached-microdescs.new
libcrypto-1_1.dll
libevent-2-1-6.dll
libgcc_s_sjlj-1.dll
libssl-1_1.dll
libssp-0.dll
libwinpthread-1.dll
torrc
winsys64.exe
zlib1.dll
memory/1948-0-0x0000000000400000-0x0000000000DD8000-memory.dmp
memory/1948-69-0x0000000000400000-0x0000000000DD8000-memory.dmp
memory/1948-2-0x0000000075190000-0x00000000751C9000-memory.dmp
memory/1948-1-0x0000000000400000-0x0000000000DD8000-memory.dmp
memory/1948-47-0x0000000073C40000-0x0000000073C79000-memory.dmp
memory/3152-46-0x00000000742E0000-0x0000000074304000-memory.dmp
memory/3152-65-0x0000000074210000-0x00000000742DE000-memory.dmp
memory/3152-40-0x00000000015C0000-0x0000000001609000-memory.dmp
memory/3152-39-0x00000000741C0000-0x0000000074209000-memory.dmp
memory/3152-42-0x0000000074020000-0x000000007412A000-memory.dmp
memory/3152-38-0x0000000074210000-0x00000000742DE000-memory.dmp
memory/3152-37-0x00000000745E0000-0x00000000746A8000-memory.dmp
memory/3152-36-0x0000000074310000-0x00000000745DF000-memory.dmp
memory/3152-61-0x0000000000DB0000-0x00000000011B4000-memory.dmp
memory/3152-62-0x0000000074310000-0x00000000745DF000-memory.dmp
memory/3152-63-0x00000000745E0000-0x00000000746A8000-memory.dmp
memory/3152-41-0x0000000074130000-0x00000000741B8000-memory.dmp
memory/3152-20-0x0000000000DB0000-0x00000000011B4000-memory.dmp
memory/3152-81-0x0000000000DB0000-0x00000000011B4000-memory.dmp
memory/3152-88-0x0000000000DB0000-0x00000000011B4000-memory.dmp
memory/3152-97-0x0000000000D60000-0x0000000000DA9000-memory.dmp
memory/3152-96-0x00000000015C0000-0x0000000001609000-memory.dmp
memory/3152-101-0x0000000000DB0000-0x00000000011B4000-memory.dmp
memory/3152-112-0x0000000000DB0000-0x00000000011B4000-memory.dmp
memory/3152-120-0x0000000000DB0000-0x00000000011B4000-memory.dmp
memory/3152-128-0x0000000000DB0000-0x00000000011B4000-memory.dmp
memory/3152-139-0x0000000000DB0000-0x00000000011B4000-memory.dmp
memory/3152-147-0x0000000000DB0000-0x00000000011B4000-memory.dmp