Analysis
- max time kernel
149s - max time network
154s - platform
windows11-21h2_x64 - resource
win11-20240508-en - resource tags
- submitted
31/05/2024, 16:48
General
- Target 3e8037a58768cad6fb1e33f0ed9bcc81c80015f5dcc8126da9af36493149520c.exe
- Size 4.9MB
- Sample240531-vbellsfb55
- SHA256 3e8037a58768cad6fb1e33f0ed9bcc81c80015f5dcc8126da9af36493149520c
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\3e8037a58768cad6fb1e33f0ed9bcc81c80015f5dcc8126da9af36493149520c.exe"C:\Users\Admin\AppData\Local\Temp\3e8037a58768cad6fb1e33f0ed9bcc81c80015f5dcc8126da9af36493149520c.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-Q8AKN.tmp\3e8037a58768cad6fb1e33f0ed9bcc81c80015f5dcc8126da9af36493149520c.tmp"C:\Users\Admin\AppData\Local\Temp\is-Q8AKN.tmp\3e8037a58768cad6fb1e33f0ed9bcc81c80015f5dcc8126da9af36493149520c.tmp" /SL5="$50158,4932846,54272,C:\Users\Admin\AppData\Local\Temp\3e8037a58768cad6fb1e33f0ed9bcc81c80015f5dcc8126da9af36493149520c.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\DD Sound Recorder\ddsoundrecorder.exe"C:\Users\Admin\AppData\Local\DD Sound Recorder\ddsoundrecorder.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\DD Sound Recorder\ddsoundrecorder.exe"C:\Users\Admin\AppData\Local\DD Sound Recorder\ddsoundrecorder.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
ddsoundrecorder.exe
_iscrypt.dll
3e8037a58768cad6fb1e33f0ed9bcc81c80015f5dcc8126da9af36493149520c.tmp
memory/440-59-0x0000000000400000-0x0000000000772000-memory.dmp
memory/440-63-0x0000000000400000-0x0000000000772000-memory.dmp
memory/440-64-0x0000000000400000-0x0000000000772000-memory.dmp
memory/440-60-0x0000000000400000-0x0000000000772000-memory.dmp
memory/952-71-0x0000000000400000-0x0000000000772000-memory.dmp
memory/952-98-0x0000000000400000-0x0000000000772000-memory.dmp
memory/952-116-0x0000000000400000-0x0000000000772000-memory.dmp
memory/952-67-0x0000000000400000-0x0000000000772000-memory.dmp
memory/952-68-0x0000000000400000-0x0000000000772000-memory.dmp
memory/952-113-0x0000000000400000-0x0000000000772000-memory.dmp
memory/952-110-0x0000000000400000-0x0000000000772000-memory.dmp
memory/952-107-0x0000000000400000-0x0000000000772000-memory.dmp
memory/952-74-0x0000000000400000-0x0000000000772000-memory.dmp
memory/952-75-0x0000000000400000-0x0000000000772000-memory.dmp
memory/952-78-0x0000000000400000-0x0000000000772000-memory.dmp
memory/952-81-0x0000000000400000-0x0000000000772000-memory.dmp
memory/952-84-0x0000000000400000-0x0000000000772000-memory.dmp
memory/952-87-0x0000000000A60000-0x0000000000B02000-memory.dmp
memory/952-90-0x0000000000400000-0x0000000000772000-memory.dmp
memory/952-95-0x0000000000400000-0x0000000000772000-memory.dmp
memory/952-104-0x0000000000400000-0x0000000000772000-memory.dmp
memory/952-101-0x0000000000400000-0x0000000000772000-memory.dmp
memory/4136-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4136-69-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4136-2-0x0000000000401000-0x000000000040B000-memory.dmp
memory/4992-13-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/4992-70-0x0000000000400000-0x00000000004BA000-memory.dmp