Analysis
- max time kernel
141s - max time network
127s - platform
windows11-21h2_x64 - resource
win11-20240611-en - resource tags
- submitted
23/06/2024, 04:39
General
- Target 058f878aeb44622da5120abe47ef4657e21fb8728194bfda51f88e2f460b4669.exe
- Size 4.7MB
- Sample240623-e966hstflj
- SHA256 058f878aeb44622da5120abe47ef4657e21fb8728194bfda51f88e2f460b4669
Malware Config
Extracted
-
socks5systemz
-
bvxraxl.com
-
http://bvxraxl.com/search/?q=67e28dd83d0ea428165baf167c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a371ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ff610c1e8939939
-
http://bvxraxl.com/search/?q=67e28dd83d0ea428165baf167c27d78406abdd88be4b12eab517aa5c96bd86ea92834496148ab2865b77f80ebad9c40f7cb63037ed2ab423a4664383ba915d911ec07bb606a0708727e40ea678c751bbe34efb0e2807e12571c17f3e83fe16c1e6949b3ccb6c94
Signatures
- Detect Socks5Systemz Payload 3 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\058f878aeb44622da5120abe47ef4657e21fb8728194bfda51f88e2f460b4669.exe"C:\Users\Admin\AppData\Local\Temp\058f878aeb44622da5120abe47ef4657e21fb8728194bfda51f88e2f460b4669.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-QUI5H.tmp\058f878aeb44622da5120abe47ef4657e21fb8728194bfda51f88e2f460b4669.tmp"C:\Users\Admin\AppData\Local\Temp\is-QUI5H.tmp\058f878aeb44622da5120abe47ef4657e21fb8728194bfda51f88e2f460b4669.tmp" /SL5="$70062,4658579,54272,C:\Users\Admin\AppData\Local\Temp\058f878aeb44622da5120abe47ef4657e21fb8728194bfda51f88e2f460b4669.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Free Sound Recorder\freesoundrecorder.exe"C:\Users\Admin\AppData\Local\Free Sound Recorder\freesoundrecorder.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Free Sound Recorder\freesoundrecorder.exe"C:\Users\Admin\AppData\Local\Free Sound Recorder\freesoundrecorder.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
freesoundrecorder.exe
_iscrypt.dll
058f878aeb44622da5120abe47ef4657e21fb8728194bfda51f88e2f460b4669.tmp
memory/2208-16-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/2208-70-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/2612-69-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2612-2-0x0000000000401000-0x000000000040B000-memory.dmp
memory/2612-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3736-59-0x0000000000400000-0x00000000006E7000-memory.dmp
memory/3736-60-0x0000000000400000-0x00000000006E7000-memory.dmp
memory/3736-64-0x0000000000400000-0x00000000006E7000-memory.dmp
memory/4064-74-0x0000000000400000-0x00000000006E7000-memory.dmp
memory/4064-88-0x0000000000400000-0x00000000006E7000-memory.dmp
memory/4064-71-0x0000000000400000-0x00000000006E7000-memory.dmp
memory/4064-66-0x0000000000400000-0x00000000006E7000-memory.dmp
memory/4064-75-0x0000000000400000-0x00000000006E7000-memory.dmp
memory/4064-78-0x0000000000400000-0x00000000006E7000-memory.dmp
memory/4064-81-0x0000000000400000-0x00000000006E7000-memory.dmp
memory/4064-84-0x0000000000400000-0x00000000006E7000-memory.dmp
memory/4064-87-0x0000000000AB0000-0x0000000000B52000-memory.dmp
memory/4064-68-0x0000000000400000-0x00000000006E7000-memory.dmp
memory/4064-94-0x0000000000400000-0x00000000006E7000-memory.dmp
memory/4064-97-0x0000000000400000-0x00000000006E7000-memory.dmp
memory/4064-100-0x0000000000400000-0x00000000006E7000-memory.dmp
memory/4064-103-0x0000000000400000-0x00000000006E7000-memory.dmp
memory/4064-106-0x0000000000400000-0x00000000006E7000-memory.dmp
memory/4064-109-0x0000000000400000-0x00000000006E7000-memory.dmp
memory/4064-110-0x0000000000AB0000-0x0000000000B52000-memory.dmp
memory/4064-111-0x0000000000AB0000-0x0000000000B52000-memory.dmp
memory/4064-115-0x0000000000400000-0x00000000006E7000-memory.dmp
memory/4064-118-0x0000000000400000-0x00000000006E7000-memory.dmp