Analysis
- max time kernel
148s - max time network
157s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
12/06/2024, 01:28
General
- Target 5927ff34247cc44f8109948a52e943b8f7877e766182113da9cc80e32f5df290.exe
- Size 4.7MB
- Sample240612-bv5glaxfpc
- SHA256 5927ff34247cc44f8109948a52e943b8f7877e766182113da9cc80e32f5df290
Malware Config
Extracted
-
socks5systemz
-
bpuesua.com
Signatures
- Detect Socks5Systemz Payload 1 IoCs
- Socks5Systemz
Socks5Systemz is a botnet written in C++.
- Detects executables packed with VMProtect. 19 IoCs
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 1 IoCs
- Unexpected DNS network traffic destination 3 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\5927ff34247cc44f8109948a52e943b8f7877e766182113da9cc80e32f5df290.exe"C:\Users\Admin\AppData\Local\Temp\5927ff34247cc44f8109948a52e943b8f7877e766182113da9cc80e32f5df290.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-TAU7H.tmp\5927ff34247cc44f8109948a52e943b8f7877e766182113da9cc80e32f5df290.tmp"C:\Users\Admin\AppData\Local\Temp\is-TAU7H.tmp\5927ff34247cc44f8109948a52e943b8f7877e766182113da9cc80e32f5df290.tmp" /SL5="$801C8,4627400,54272,C:\Users\Admin\AppData\Local\Temp\5927ff34247cc44f8109948a52e943b8f7877e766182113da9cc80e32f5df290.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard32.exe"C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard32.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard32.exe"C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard32.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
_iscrypt.dll
5927ff34247cc44f8109948a52e943b8f7877e766182113da9cc80e32f5df290.tmp
virtualsoundcard32.exe
memory/1988-90-0x0000000000400000-0x00000000006BD000-memory.dmp
memory/1988-76-0x0000000000400000-0x00000000006BD000-memory.dmp
memory/1988-116-0x0000000000400000-0x00000000006BD000-memory.dmp
memory/1988-113-0x0000000000400000-0x00000000006BD000-memory.dmp
memory/1988-110-0x0000000000400000-0x00000000006BD000-memory.dmp
memory/1988-107-0x0000000000400000-0x00000000006BD000-memory.dmp
memory/1988-104-0x0000000000400000-0x00000000006BD000-memory.dmp
memory/1988-67-0x0000000000400000-0x00000000006BD000-memory.dmp
memory/1988-69-0x0000000000400000-0x00000000006BD000-memory.dmp
memory/1988-101-0x0000000000400000-0x00000000006BD000-memory.dmp
memory/1988-98-0x0000000000400000-0x00000000006BD000-memory.dmp
memory/1988-72-0x0000000000400000-0x00000000006BD000-memory.dmp
memory/1988-75-0x0000000000400000-0x00000000006BD000-memory.dmp
memory/1988-95-0x0000000000400000-0x00000000006BD000-memory.dmp
memory/1988-79-0x0000000000400000-0x00000000006BD000-memory.dmp
memory/1988-82-0x0000000000400000-0x00000000006BD000-memory.dmp
memory/1988-85-0x0000000000400000-0x00000000006BD000-memory.dmp
memory/1988-88-0x0000000002860000-0x0000000002902000-memory.dmp
memory/3660-12-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/3660-71-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/4828-65-0x0000000000400000-0x00000000006BD000-memory.dmp
memory/4828-62-0x0000000000400000-0x00000000006BD000-memory.dmp
memory/4828-60-0x0000000000400000-0x00000000006BD000-memory.dmp
memory/4828-59-0x0000000000400000-0x00000000006BD000-memory.dmp
memory/4916-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4916-70-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4916-3-0x0000000000401000-0x000000000040B000-memory.dmp