Analysis
- max time kernel
293s - max time network
310s - platform
windows10-1703_x64 - resource
win10-20240404-en - resource tags
- submitted
10/06/2024, 09:06
General
- Target d522bfd80b0a0848a38722586beac3cbe1500c88975bfad821652e3dddd5cd2e.exe
- Size 4.6MB
- Sample240610-k28x2afe96
- SHA256 d522bfd80b0a0848a38722586beac3cbe1500c88975bfad821652e3dddd5cd2e
Malware Config
Extracted
-
socks5systemz
-
bgmrhdq.com
-
http://bgmrhdq.com/search/?q=67e28dd8645fa72f495daa1c7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978a771ea771795af8e05c645db22f31dfe339426fa11a366c350adb719a9577e55b8603e983a608ff711c1ef919339
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\d522bfd80b0a0848a38722586beac3cbe1500c88975bfad821652e3dddd5cd2e.exe"C:\Users\Admin\AppData\Local\Temp\d522bfd80b0a0848a38722586beac3cbe1500c88975bfad821652e3dddd5cd2e.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-1A9CL.tmp\d522bfd80b0a0848a38722586beac3cbe1500c88975bfad821652e3dddd5cd2e.tmp"C:\Users\Admin\AppData\Local\Temp\is-1A9CL.tmp\d522bfd80b0a0848a38722586beac3cbe1500c88975bfad821652e3dddd5cd2e.tmp" /SL5="$501FE,4616536,54272,C:\Users\Admin\AppData\Local\Temp\d522bfd80b0a0848a38722586beac3cbe1500c88975bfad821652e3dddd5cd2e.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
Loading Replay Monitor...
Downloads
d522bfd80b0a0848a38722586beac3cbe1500c88975bfad821652e3dddd5cd2e.tmp
virtualsoundcard32.exe
_iscrypt.dll
memory/3360-59-0x0000000000400000-0x00000000006C0000-memory.dmp
memory/3360-60-0x0000000000400000-0x00000000006C0000-memory.dmp
memory/3360-63-0x0000000000400000-0x00000000006C0000-memory.dmp
memory/4092-68-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/4092-13-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/4400-2-0x0000000000401000-0x000000000040B000-memory.dmp
memory/4400-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4400-67-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4968-81-0x0000000000400000-0x00000000006C0000-memory.dmp
memory/4968-100-0x0000000000400000-0x00000000006C0000-memory.dmp
memory/4968-72-0x0000000000400000-0x00000000006C0000-memory.dmp
memory/4968-75-0x0000000000400000-0x00000000006C0000-memory.dmp
memory/4968-78-0x0000000000400000-0x00000000006C0000-memory.dmp
memory/4968-66-0x0000000000400000-0x00000000006C0000-memory.dmp
memory/4968-84-0x00000000027E0000-0x0000000002882000-memory.dmp
memory/4968-86-0x0000000000400000-0x00000000006C0000-memory.dmp
memory/4968-91-0x0000000000400000-0x00000000006C0000-memory.dmp
memory/4968-94-0x0000000000400000-0x00000000006C0000-memory.dmp
memory/4968-97-0x0000000000400000-0x00000000006C0000-memory.dmp
memory/4968-69-0x0000000000400000-0x00000000006C0000-memory.dmp
memory/4968-103-0x0000000000400000-0x00000000006C0000-memory.dmp
memory/4968-107-0x0000000000400000-0x00000000006C0000-memory.dmp
memory/4968-110-0x0000000000400000-0x00000000006C0000-memory.dmp
memory/4968-113-0x0000000000400000-0x00000000006C0000-memory.dmp
memory/4968-116-0x0000000000400000-0x00000000006C0000-memory.dmp
memory/4968-119-0x0000000000400000-0x00000000006C0000-memory.dmp
memory/4968-122-0x0000000000400000-0x00000000006C0000-memory.dmp
memory/4968-125-0x0000000000400000-0x00000000006C0000-memory.dmp
memory/4968-130-0x0000000000400000-0x00000000006C0000-memory.dmp