Analysis
- max time kernel
292s - max time network
299s - platform
windows10-1703_x64 - resource
win10-20240404-en - resource tags
- submitted
13/06/2024, 22:41
General
- Target 2a29d26bf0cbd899c91002cb7548d02b219d9c22df657d3c0e30d55b6f323db5.exe
- Size 4.7MB
- Sample240613-2mbsestcld
- SHA256 2a29d26bf0cbd899c91002cb7548d02b219d9c22df657d3c0e30d55b6f323db5
Malware Config
Extracted
-
socks5systemz
-
csmoorn.net
-
http://csmoorn.net/search/?q=67e28dd8685af379125bfd4e7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa49e8889b5e4fa9281ae978f271ea771795af8e05c645db22f31dfe339426fa11a366c350adb719a9577e55b8603e983a608ff712c1e7909f3d
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\2a29d26bf0cbd899c91002cb7548d02b219d9c22df657d3c0e30d55b6f323db5.exe"C:\Users\Admin\AppData\Local\Temp\2a29d26bf0cbd899c91002cb7548d02b219d9c22df657d3c0e30d55b6f323db5.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-M7VNL.tmp\2a29d26bf0cbd899c91002cb7548d02b219d9c22df657d3c0e30d55b6f323db5.tmp"C:\Users\Admin\AppData\Local\Temp\is-M7VNL.tmp\2a29d26bf0cbd899c91002cb7548d02b219d9c22df657d3c0e30d55b6f323db5.tmp" /SL5="$70216,4639965,54272,C:\Users\Admin\AppData\Local\Temp\2a29d26bf0cbd899c91002cb7548d02b219d9c22df657d3c0e30d55b6f323db5.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
2a29d26bf0cbd899c91002cb7548d02b219d9c22df657d3c0e30d55b6f323db5.tmp
virtualsoundcard32.exe
_iscrypt.dll
memory/208-59-0x0000000000400000-0x00000000006C1000-memory.dmp
memory/208-60-0x0000000000400000-0x00000000006C1000-memory.dmp
memory/208-63-0x0000000000400000-0x00000000006C1000-memory.dmp
memory/768-13-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/768-67-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/3936-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3936-3-0x0000000000401000-0x000000000040B000-memory.dmp
memory/3936-66-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4596-77-0x0000000000400000-0x00000000006C1000-memory.dmp
memory/4596-96-0x0000000000400000-0x00000000006C1000-memory.dmp
memory/4596-74-0x0000000000400000-0x00000000006C1000-memory.dmp
memory/4596-68-0x0000000000400000-0x00000000006C1000-memory.dmp
memory/4596-80-0x0000000000400000-0x00000000006C1000-memory.dmp
memory/4596-83-0x0000000000980000-0x0000000000A22000-memory.dmp
memory/4596-85-0x0000000000400000-0x00000000006C1000-memory.dmp
memory/4596-90-0x0000000000400000-0x00000000006C1000-memory.dmp
memory/4596-93-0x0000000000400000-0x00000000006C1000-memory.dmp
memory/4596-71-0x0000000000400000-0x00000000006C1000-memory.dmp
memory/4596-99-0x0000000000400000-0x00000000006C1000-memory.dmp
memory/4596-102-0x0000000000400000-0x00000000006C1000-memory.dmp
memory/4596-105-0x0000000000400000-0x00000000006C1000-memory.dmp
memory/4596-109-0x0000000000400000-0x00000000006C1000-memory.dmp
memory/4596-112-0x0000000000400000-0x00000000006C1000-memory.dmp
memory/4596-115-0x0000000000400000-0x00000000006C1000-memory.dmp
memory/4596-118-0x0000000000400000-0x00000000006C1000-memory.dmp
memory/4596-121-0x0000000000400000-0x00000000006C1000-memory.dmp
memory/4596-124-0x0000000000400000-0x00000000006C1000-memory.dmp
memory/4596-129-0x0000000000400000-0x00000000006C1000-memory.dmp