Analysis
- max time kernel
149s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20240221-en - resource tags
- submitted
25/02/2024, 18:45
General
- Target file.exe
- Size 2.6MB
- Sample240225-xd2v2aaa47
- SHA256 53e7ca3f5bd800d3d179b315ee9c73c9d2b4f48ff3adf5583792e8e7fa6b1efa
Malware Config
Signatures
- Detect Socks5Systemz Payload 3 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.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-I4QSM.tmp\file.tmp"C:\Users\Admin\AppData\Local\Temp\is-I4QSM.tmp\file.tmp" /SL5="$B00E0,2439173,54272,C:\Users\Admin\AppData\Local\Temp\file.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Menu\menu.exe"C:\Users\Admin\AppData\Local\Menu\menu.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Menu\menu.exe"C:\Users\Admin\AppData\Local\Menu\menu.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
menu.exe
_iscrypt.dll
file.tmp
memory/3688-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3688-2-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3688-55-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3828-45-0x0000000000400000-0x0000000000791000-memory.dmp
memory/3828-46-0x0000000000400000-0x0000000000791000-memory.dmp
memory/3828-50-0x0000000000400000-0x0000000000791000-memory.dmp
memory/3828-47-0x0000000000400000-0x0000000000791000-memory.dmp
memory/4380-56-0x0000000000400000-0x00000000004BC000-memory.dmp
memory/4380-58-0x0000000002240000-0x0000000002241000-memory.dmp
memory/4380-7-0x0000000002240000-0x0000000002241000-memory.dmp
memory/4876-61-0x0000000000400000-0x0000000000791000-memory.dmp
memory/4876-75-0x0000000000400000-0x0000000000791000-memory.dmp
memory/4876-54-0x0000000000400000-0x0000000000791000-memory.dmp
memory/4876-52-0x0000000000400000-0x0000000000791000-memory.dmp
memory/4876-62-0x0000000000400000-0x0000000000791000-memory.dmp
memory/4876-65-0x0000000000400000-0x0000000000791000-memory.dmp
memory/4876-68-0x0000000000400000-0x0000000000791000-memory.dmp
memory/4876-71-0x0000000000400000-0x0000000000791000-memory.dmp
memory/4876-74-0x0000000000980000-0x0000000000A22000-memory.dmp
memory/4876-57-0x0000000000400000-0x0000000000791000-memory.dmp
memory/4876-77-0x0000000000980000-0x0000000000A22000-memory.dmp
memory/4876-82-0x0000000000400000-0x0000000000791000-memory.dmp
memory/4876-85-0x0000000000400000-0x0000000000791000-memory.dmp
memory/4876-86-0x0000000000980000-0x0000000000A22000-memory.dmp
memory/4876-89-0x0000000000400000-0x0000000000791000-memory.dmp
memory/4876-92-0x0000000000400000-0x0000000000791000-memory.dmp
memory/4876-95-0x0000000000400000-0x0000000000791000-memory.dmp
memory/4876-98-0x0000000000400000-0x0000000000791000-memory.dmp
memory/4876-102-0x0000000000400000-0x0000000000791000-memory.dmp
memory/4876-105-0x0000000000400000-0x0000000000791000-memory.dmp