Analysis
- max time kernel
146s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20240426-en - resource tags
- submitted
29/05/2024, 00:40
General
- Target b6af2527c228ca999f1efc243cda1ef0c22c9eec56dce31479cad74fe839f7d1.exe
- Size 4.8MB
- Sample240529-a1psnaca95
- SHA256 b6af2527c228ca999f1efc243cda1ef0c22c9eec56dce31479cad74fe839f7d1
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 1 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\b6af2527c228ca999f1efc243cda1ef0c22c9eec56dce31479cad74fe839f7d1.exe"C:\Users\Admin\AppData\Local\Temp\b6af2527c228ca999f1efc243cda1ef0c22c9eec56dce31479cad74fe839f7d1.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-I4A2B.tmp\b6af2527c228ca999f1efc243cda1ef0c22c9eec56dce31479cad74fe839f7d1.tmp"C:\Users\Admin\AppData\Local\Temp\is-I4A2B.tmp\b6af2527c228ca999f1efc243cda1ef0c22c9eec56dce31479cad74fe839f7d1.tmp" /SL5="$6016C,4821372,54272,C:\Users\Admin\AppData\Local\Temp\b6af2527c228ca999f1efc243cda1ef0c22c9eec56dce31479cad74fe839f7d1.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe"C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe"C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
stereotool32.exe
b6af2527c228ca999f1efc243cda1ef0c22c9eec56dce31479cad74fe839f7d1.tmp
_iscrypt.dll
memory/1504-96-0x0000000000400000-0x0000000000700000-memory.dmp
memory/1504-99-0x0000000000400000-0x0000000000700000-memory.dmp
memory/1504-115-0x0000000000400000-0x0000000000700000-memory.dmp
memory/1504-112-0x0000000000400000-0x0000000000700000-memory.dmp
memory/1504-108-0x0000000000400000-0x0000000000700000-memory.dmp
memory/1504-105-0x0000000000400000-0x0000000000700000-memory.dmp
memory/1504-68-0x0000000000400000-0x0000000000700000-memory.dmp
memory/1504-102-0x0000000000400000-0x0000000000700000-memory.dmp
memory/1504-93-0x0000000000400000-0x0000000000700000-memory.dmp
memory/1504-88-0x0000000000400000-0x0000000000700000-memory.dmp
memory/1504-71-0x0000000000400000-0x0000000000700000-memory.dmp
memory/1504-74-0x0000000000400000-0x0000000000700000-memory.dmp
memory/1504-77-0x0000000000400000-0x0000000000700000-memory.dmp
memory/1504-80-0x0000000000400000-0x0000000000700000-memory.dmp
memory/1504-83-0x0000000000400000-0x0000000000700000-memory.dmp
memory/1504-85-0x0000000002570000-0x0000000002612000-memory.dmp
memory/1544-69-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1544-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1544-3-0x0000000000401000-0x000000000040B000-memory.dmp
memory/4072-60-0x0000000000400000-0x0000000000700000-memory.dmp
memory/4072-63-0x0000000000400000-0x0000000000700000-memory.dmp
memory/4072-65-0x0000000000400000-0x0000000000700000-memory.dmp
memory/4072-59-0x0000000000400000-0x0000000000700000-memory.dmp
memory/4708-70-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/4708-10-0x0000000000400000-0x00000000004BA000-memory.dmp