Analysis
- max time kernel
147s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20240508-en - resource tags
- submitted
19/06/2024, 22:26
General
- Target a1f2c2e3db5ccd028a00f1ffd2ac45bc6fdd0d5761f220bb9e0cfe33f5e1e23d.exe
- Size 4.8MB
- Sample240619-2cvgsavbrb
- SHA256 a1f2c2e3db5ccd028a00f1ffd2ac45bc6fdd0d5761f220bb9e0cfe33f5e1e23d
Malware Config
Extracted
-
socks5systemz
-
ebselsd.ua
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 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\a1f2c2e3db5ccd028a00f1ffd2ac45bc6fdd0d5761f220bb9e0cfe33f5e1e23d.exe"C:\Users\Admin\AppData\Local\Temp\a1f2c2e3db5ccd028a00f1ffd2ac45bc6fdd0d5761f220bb9e0cfe33f5e1e23d.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-IR5DI.tmp\a1f2c2e3db5ccd028a00f1ffd2ac45bc6fdd0d5761f220bb9e0cfe33f5e1e23d.tmp"C:\Users\Admin\AppData\Local\Temp\is-IR5DI.tmp\a1f2c2e3db5ccd028a00f1ffd2ac45bc6fdd0d5761f220bb9e0cfe33f5e1e23d.tmp" /SL5="$A01E8,4821734,54272,C:\Users\Admin\AppData\Local\Temp\a1f2c2e3db5ccd028a00f1ffd2ac45bc6fdd0d5761f220bb9e0cfe33f5e1e23d.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Audials Tunebite\audialstunebite32_64.exe"C:\Users\Admin\AppData\Local\Audials Tunebite\audialstunebite32_64.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Audials Tunebite\audialstunebite32_64.exe"C:\Users\Admin\AppData\Local\Audials Tunebite\audialstunebite32_64.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
audialstunebite32_64.exe
_iscrypt.dll
a1f2c2e3db5ccd028a00f1ffd2ac45bc6fdd0d5761f220bb9e0cfe33f5e1e23d.tmp
memory/1308-59-0x0000000000400000-0x0000000000665000-memory.dmp
memory/1308-61-0x0000000000400000-0x0000000000665000-memory.dmp
memory/1308-63-0x0000000000400000-0x0000000000665000-memory.dmp
memory/1308-65-0x0000000000400000-0x0000000000665000-memory.dmp
memory/1836-70-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/1836-16-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/1940-2-0x0000000000401000-0x000000000040B000-memory.dmp
memory/1940-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1940-69-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3016-74-0x0000000000400000-0x0000000000665000-memory.dmp
memory/3016-88-0x0000000000400000-0x0000000000665000-memory.dmp
memory/3016-68-0x0000000000400000-0x0000000000665000-memory.dmp
memory/3016-77-0x0000000000400000-0x0000000000665000-memory.dmp
memory/3016-80-0x0000000000400000-0x0000000000665000-memory.dmp
memory/3016-83-0x0000000000400000-0x0000000000665000-memory.dmp
memory/3016-84-0x0000000002430000-0x00000000024D2000-memory.dmp
memory/3016-71-0x0000000000400000-0x0000000000665000-memory.dmp
memory/3016-94-0x0000000000400000-0x0000000000665000-memory.dmp
memory/3016-97-0x0000000000400000-0x0000000000665000-memory.dmp
memory/3016-100-0x0000000000400000-0x0000000000665000-memory.dmp
memory/3016-103-0x0000000000400000-0x0000000000665000-memory.dmp
memory/3016-106-0x0000000000400000-0x0000000000665000-memory.dmp
memory/3016-109-0x0000000000400000-0x0000000000665000-memory.dmp
memory/3016-112-0x0000000000400000-0x0000000000665000-memory.dmp
memory/3016-115-0x0000000000400000-0x0000000000665000-memory.dmp