Analysis
- max time kernel
146s - max time network
153s - platform
windows11-21h2_x64 - resource
win11-20240508-en - resource tags
- submitted
28/05/2024, 09:25
General
- Target 4aa10134eea9d83f6037e6ecdedd6615fa5a92a9132502ec61e35edf8b21d83d.exe
- Size 4.6MB
- Sample240528-ldy9csfb24
- SHA256 4aa10134eea9d83f6037e6ecdedd6615fa5a92a9132502ec61e35edf8b21d83d
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\4aa10134eea9d83f6037e6ecdedd6615fa5a92a9132502ec61e35edf8b21d83d.exe"C:\Users\Admin\AppData\Local\Temp\4aa10134eea9d83f6037e6ecdedd6615fa5a92a9132502ec61e35edf8b21d83d.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-6TK0Q.tmp\4aa10134eea9d83f6037e6ecdedd6615fa5a92a9132502ec61e35edf8b21d83d.tmp"C:\Users\Admin\AppData\Local\Temp\is-6TK0Q.tmp\4aa10134eea9d83f6037e6ecdedd6615fa5a92a9132502ec61e35edf8b21d83d.tmp" /SL5="$500D8,4621833,54272,C:\Users\Admin\AppData\Local\Temp\4aa10134eea9d83f6037e6ecdedd6615fa5a92a9132502ec61e35edf8b21d83d.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
4aa10134eea9d83f6037e6ecdedd6615fa5a92a9132502ec61e35edf8b21d83d.tmp
_iscrypt.dll
memory/2100-63-0x0000000000400000-0x00000000006D1000-memory.dmp
memory/2100-59-0x0000000000400000-0x00000000006D1000-memory.dmp
memory/2100-65-0x0000000000400000-0x00000000006D1000-memory.dmp
memory/2100-60-0x0000000000400000-0x00000000006D1000-memory.dmp
memory/3128-74-0x0000000000400000-0x00000000006D1000-memory.dmp
memory/3128-86-0x00000000008C0000-0x0000000000962000-memory.dmp
memory/3128-116-0x0000000000400000-0x00000000006D1000-memory.dmp
memory/3128-68-0x0000000000400000-0x00000000006D1000-memory.dmp
memory/3128-113-0x0000000000400000-0x00000000006D1000-memory.dmp
memory/3128-109-0x0000000000400000-0x00000000006D1000-memory.dmp
memory/3128-71-0x0000000000400000-0x00000000006D1000-memory.dmp
memory/3128-106-0x0000000000400000-0x00000000006D1000-memory.dmp
memory/3128-77-0x0000000000400000-0x00000000006D1000-memory.dmp
memory/3128-80-0x0000000000400000-0x00000000006D1000-memory.dmp
memory/3128-83-0x0000000000400000-0x00000000006D1000-memory.dmp
memory/3128-103-0x0000000000400000-0x00000000006D1000-memory.dmp
memory/3128-89-0x0000000000400000-0x00000000006D1000-memory.dmp
memory/3128-94-0x0000000000400000-0x00000000006D1000-memory.dmp
memory/3128-97-0x0000000000400000-0x00000000006D1000-memory.dmp
memory/3128-100-0x0000000000400000-0x00000000006D1000-memory.dmp
memory/4464-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4464-69-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4464-3-0x0000000000401000-0x000000000040B000-memory.dmp
memory/5116-16-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/5116-70-0x0000000000400000-0x00000000004BA000-memory.dmp