Analysis
- max time kernel
147s - max time network
152s - platform
windows11-21h2_x64 - resource
win11-20240508-en - resource tags
- submitted
24/06/2024, 01:32
General
- Target b4db07a8cc398e6d31b33658b1f0635a44ab27d52f7afcec6bb34d59717e7c45.exe
- Size 5.4MB
- Sample240624-bx5kdatbmg
- SHA256 b4db07a8cc398e6d31b33658b1f0635a44ab27d52f7afcec6bb34d59717e7c45
Malware Config
Extracted
-
socks5systemz
-
aqwegfi.ru
Signatures
- Detect Socks5Systemz Payload 1 IoCs
- Socks5Systemz
Socks5Systemz is a botnet written in C++.
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 3 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\b4db07a8cc398e6d31b33658b1f0635a44ab27d52f7afcec6bb34d59717e7c45.exe"C:\Users\Admin\AppData\Local\Temp\b4db07a8cc398e6d31b33658b1f0635a44ab27d52f7afcec6bb34d59717e7c45.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-I5QPR.tmp\b4db07a8cc398e6d31b33658b1f0635a44ab27d52f7afcec6bb34d59717e7c45.tmp"C:\Users\Admin\AppData\Local\Temp\is-I5QPR.tmp\b4db07a8cc398e6d31b33658b1f0635a44ab27d52f7afcec6bb34d59717e7c45.tmp" /SL5="$40218,5398586,54272,C:\Users\Admin\AppData\Local\Temp\b4db07a8cc398e6d31b33658b1f0635a44ab27d52f7afcec6bb34d59717e7c45.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Free Sound Recorder\soundrecorder32_64.exe"C:\Users\Admin\AppData\Local\Free Sound Recorder\soundrecorder32_64.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Free Sound Recorder\soundrecorder32_64.exe"C:\Users\Admin\AppData\Local\Free Sound Recorder\soundrecorder32_64.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
soundrecorder32_64.exe
b4db07a8cc398e6d31b33658b1f0635a44ab27d52f7afcec6bb34d59717e7c45.tmp
_iscrypt.dll
_isdecmp.dll
memory/1220-76-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/1220-19-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/2736-92-0x00000000009D0000-0x0000000000A72000-memory.dmp
memory/2736-107-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/2736-122-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/2736-119-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/2736-116-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/2736-72-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/2736-74-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/2736-113-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/2736-110-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/2736-77-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/2736-80-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/2736-81-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/2736-84-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/2736-87-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/2736-90-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/2736-104-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/2736-96-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/2736-101-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/3820-65-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/3820-70-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/3820-69-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/3820-66-0x0000000000400000-0x00000000006D4000-memory.dmp
memory/4512-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4512-3-0x0000000000401000-0x000000000040B000-memory.dmp
memory/4512-75-0x0000000000400000-0x0000000000414000-memory.dmp