Analysis
- max time kernel
146s - max time network
149s - platform
windows11-21h2_x64 - resource
win11-20240508-en - resource tags
- submitted
10/06/2024, 10:20
General
- Target 523f15037024dd39303fdaea52df1b75291d965263225fcf3556c7079c2541b2.exe
- Size 4.6MB
- Sample240610-mdd4vsgd43
- SHA256 523f15037024dd39303fdaea52df1b75291d965263225fcf3556c7079c2541b2
Malware Config
Extracted
-
socks5systemz
-
bvyenyj.com
-
http://bvyenyj.com/search/?q=67e28dd83f54f37a445aab4e7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4be8889b5e4fa9281ae978f671ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ff711c1eb9c9a39
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\523f15037024dd39303fdaea52df1b75291d965263225fcf3556c7079c2541b2.exe"C:\Users\Admin\AppData\Local\Temp\523f15037024dd39303fdaea52df1b75291d965263225fcf3556c7079c2541b2.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-H9JG1.tmp\523f15037024dd39303fdaea52df1b75291d965263225fcf3556c7079c2541b2.tmp"C:\Users\Admin\AppData\Local\Temp\is-H9JG1.tmp\523f15037024dd39303fdaea52df1b75291d965263225fcf3556c7079c2541b2.tmp" /SL5="$60206,4551474,54272,C:\Users\Admin\AppData\Local\Temp\523f15037024dd39303fdaea52df1b75291d965263225fcf3556c7079c2541b2.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio.exe"C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio.exe"C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
linuxmultiMediastudio.exe
_iscrypt.dll
523f15037024dd39303fdaea52df1b75291d965263225fcf3556c7079c2541b2.tmp
memory/1216-69-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1216-3-0x0000000000401000-0x000000000040B000-memory.dmp
memory/1216-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4368-16-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/4368-70-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/4780-62-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/4780-63-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/4780-59-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/4896-74-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/4896-87-0x0000000000AF0000-0x0000000000B92000-memory.dmp
memory/4896-71-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/4896-66-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/4896-75-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/4896-78-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/4896-81-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/4896-84-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/4896-89-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/4896-68-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/4896-94-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/4896-97-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/4896-100-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/4896-103-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/4896-106-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/4896-109-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/4896-113-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/4896-116-0x0000000000400000-0x00000000006E4000-memory.dmp