Analysis
- max time kernel
292s - max time network
301s - platform
windows10-1703_x64 - resource
win10-20240404-en - resource tags
- submitted
30/05/2024, 23:39
General
- Target f44857fbb70f85b841dd531a743dd73a7a5c183db34fc49d7eda0108435ea5f7.exe
- Size 4.6MB
- Sample240530-3nndaaee7v
- SHA256 f44857fbb70f85b841dd531a743dd73a7a5c183db34fc49d7eda0108435ea5f7
Malware Config
Signatures
- Detect Socks5Systemz Payload 1 IoCs
- Socks5Systemz
Socks5Systemz is a botnet written in C++.
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 1 IoCs
- Unexpected DNS network traffic destination 2 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\f44857fbb70f85b841dd531a743dd73a7a5c183db34fc49d7eda0108435ea5f7.exe"C:\Users\Admin\AppData\Local\Temp\f44857fbb70f85b841dd531a743dd73a7a5c183db34fc49d7eda0108435ea5f7.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-5UI56.tmp\f44857fbb70f85b841dd531a743dd73a7a5c183db34fc49d7eda0108435ea5f7.tmp"C:\Users\Admin\AppData\Local\Temp\is-5UI56.tmp\f44857fbb70f85b841dd531a743dd73a7a5c183db34fc49d7eda0108435ea5f7.tmp" /SL5="$300DE,4620672,54272,C:\Users\Admin\AppData\Local\Temp\f44857fbb70f85b841dd531a743dd73a7a5c183db34fc49d7eda0108435ea5f7.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Stereo Tool\stereotool.exe"C:\Users\Admin\AppData\Local\Stereo Tool\stereotool.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Stereo Tool\stereotool.exe"C:\Users\Admin\AppData\Local\Stereo Tool\stereotool.exe" -s3⤵
- Executes dropped EXE
-
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
stereotool.exe
stereotool.exe
f44857fbb70f85b841dd531a743dd73a7a5c183db34fc49d7eda0108435ea5f7.tmp
_iscrypt.dll
memory/168-67-0x0000000000400000-0x0000000000414000-memory.dmp
memory/168-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/168-2-0x0000000000401000-0x000000000040B000-memory.dmp
memory/2264-13-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/2264-68-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/2788-63-0x0000000000400000-0x00000000006D9000-memory.dmp
memory/2788-60-0x0000000000400000-0x00000000006D9000-memory.dmp
memory/2788-59-0x0000000000400000-0x00000000006D9000-memory.dmp
memory/3960-78-0x0000000000400000-0x00000000006D9000-memory.dmp
memory/3960-100-0x0000000000400000-0x00000000006D9000-memory.dmp
memory/3960-72-0x0000000000400000-0x00000000006D9000-memory.dmp
memory/3960-75-0x0000000000400000-0x00000000006D9000-memory.dmp
memory/3960-65-0x0000000000400000-0x00000000006D9000-memory.dmp
memory/3960-81-0x0000000000400000-0x00000000006D9000-memory.dmp
memory/3960-82-0x00000000009B0000-0x0000000000A52000-memory.dmp
memory/3960-86-0x0000000000400000-0x00000000006D9000-memory.dmp
memory/3960-91-0x0000000000400000-0x00000000006D9000-memory.dmp
memory/3960-94-0x0000000000400000-0x00000000006D9000-memory.dmp
memory/3960-97-0x0000000000400000-0x00000000006D9000-memory.dmp
memory/3960-69-0x0000000000400000-0x00000000006D9000-memory.dmp
memory/3960-103-0x0000000000400000-0x00000000006D9000-memory.dmp
memory/3960-106-0x0000000000400000-0x00000000006D9000-memory.dmp
memory/3960-109-0x0000000000400000-0x00000000006D9000-memory.dmp
memory/3960-112-0x0000000000400000-0x00000000006D9000-memory.dmp
memory/3960-115-0x0000000000400000-0x00000000006D9000-memory.dmp
memory/3960-119-0x0000000000400000-0x00000000006D9000-memory.dmp
memory/3960-122-0x0000000000400000-0x00000000006D9000-memory.dmp
memory/3960-125-0x0000000000400000-0x00000000006D9000-memory.dmp
memory/3960-128-0x0000000000400000-0x00000000006D9000-memory.dmp