Analysis
- max time kernel
143s - max time network
134s - platform
windows10-1703_x64 - resource
win10-20240611-en - resource tags
- submitted
06/09/2024, 14:16
General
- Target install.exe
- Size 3.5MB
- Sample240906-rljfrs1ank
- SHA256 22aee22dda57ee1891a90019d4e84a173c73dcdc12f74d0064c6439fb4f4c81d
Malware Config
Signatures
- Detect Socks5Systemz Payload 3 IoCs
- Socks5Systemz
Socks5Systemz is a botnet written in C++.
- Executes dropped EXE 2 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.
- System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\install.exe"C:\Users\Admin\AppData\Local\Temp\install.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-3SVCC.tmp\install.tmp"C:\Users\Admin\AppData\Local\Temp\is-3SVCC.tmp\install.tmp" /SL5="$901C6,3361550,54272,C:\Users\Admin\AppData\Local\Temp\install.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\NewStar\newstar32.exe"C:\Users\Admin\AppData\Local\NewStar\newstar32.exe" -i3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
newstar32.exe
install.tmp
_iscrypt.dll
memory/1604-54-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1604-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1604-2-0x0000000000401000-0x000000000040B000-memory.dmp
memory/2060-62-0x0000000000400000-0x0000000000650000-memory.dmp
memory/2060-93-0x0000000000400000-0x0000000000650000-memory.dmp
memory/2060-50-0x0000000000400000-0x0000000000650000-memory.dmp
memory/2060-102-0x0000000000400000-0x0000000000650000-memory.dmp
memory/2060-56-0x0000000000400000-0x0000000000650000-memory.dmp
memory/2060-59-0x0000000000400000-0x0000000000650000-memory.dmp
memory/2060-99-0x0000000000400000-0x0000000000650000-memory.dmp
memory/2060-65-0x0000000000400000-0x0000000000650000-memory.dmp
memory/2060-68-0x0000000000400000-0x0000000000650000-memory.dmp
memory/2060-71-0x0000000000990000-0x0000000000A32000-memory.dmp
memory/2060-73-0x0000000000400000-0x0000000000650000-memory.dmp
memory/2060-78-0x0000000000400000-0x0000000000650000-memory.dmp
memory/2060-81-0x0000000000400000-0x0000000000650000-memory.dmp
memory/2060-84-0x0000000000400000-0x0000000000650000-memory.dmp
memory/2060-87-0x0000000000400000-0x0000000000650000-memory.dmp
memory/2060-90-0x0000000000400000-0x0000000000650000-memory.dmp
memory/2060-51-0x0000000000400000-0x0000000000650000-memory.dmp
memory/2060-95-0x0000000000990000-0x0000000000A32000-memory.dmp
memory/2060-94-0x0000000000990000-0x0000000000A32000-memory.dmp
memory/2188-7-0x0000000000400000-0x00000000004BC000-memory.dmp
memory/2188-55-0x0000000000400000-0x00000000004BC000-memory.dmp