Analysis
- max time kernel
146s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20240426-en - resource tags
- submitted
27/05/2024, 22:29
General
- Target 9334ecf1d9f7ccc622a74558369a902ec3c516ad66912f8cc0c9415e551015ff.exe
- Size 5.6MB
- Sample240527-2epdjsde24
- SHA256 9334ecf1d9f7ccc622a74558369a902ec3c516ad66912f8cc0c9415e551015ff
Malware Config
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 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\9334ecf1d9f7ccc622a74558369a902ec3c516ad66912f8cc0c9415e551015ff.exe"C:\Users\Admin\AppData\Local\Temp\9334ecf1d9f7ccc622a74558369a902ec3c516ad66912f8cc0c9415e551015ff.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-7VGPK.tmp\9334ecf1d9f7ccc622a74558369a902ec3c516ad66912f8cc0c9415e551015ff.tmp"C:\Users\Admin\AppData\Local\Temp\is-7VGPK.tmp\9334ecf1d9f7ccc622a74558369a902ec3c516ad66912f8cc0c9415e551015ff.tmp" /SL5="$50210,5585066,54272,C:\Users\Admin\AppData\Local\Temp\9334ecf1d9f7ccc622a74558369a902ec3c516ad66912f8cc0c9415e551015ff.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\FIaudioConverter\fiaudioconverter.exe"C:\Users\Admin\AppData\Local\FIaudioConverter\fiaudioconverter.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\FIaudioConverter\fiaudioconverter.exe"C:\Users\Admin\AppData\Local\FIaudioConverter\fiaudioconverter.exe" -s3⤵
- Executes dropped EXE
-
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
fiaudioconverter.exe
9334ecf1d9f7ccc622a74558369a902ec3c516ad66912f8cc0c9415e551015ff.tmp
_iscrypt.dll
_isdecmp.dll
memory/4156-107-0x0000000000400000-0x00000000006EF000-memory.dmp
memory/4156-104-0x0000000000400000-0x00000000006EF000-memory.dmp
memory/4156-123-0x0000000000400000-0x00000000006EF000-memory.dmp
memory/4156-117-0x0000000000400000-0x00000000006EF000-memory.dmp
memory/4156-113-0x0000000000400000-0x00000000006EF000-memory.dmp
memory/4156-110-0x0000000000400000-0x00000000006EF000-memory.dmp
memory/4156-95-0x0000000000400000-0x00000000006EF000-memory.dmp
memory/4156-74-0x0000000000400000-0x00000000006EF000-memory.dmp
memory/4156-75-0x0000000000400000-0x00000000006EF000-memory.dmp
memory/4156-120-0x0000000000400000-0x00000000006EF000-memory.dmp
memory/4156-101-0x0000000000400000-0x00000000006EF000-memory.dmp
memory/4156-78-0x0000000000400000-0x00000000006EF000-memory.dmp
memory/4156-81-0x0000000000400000-0x00000000006EF000-memory.dmp
memory/4156-84-0x0000000000400000-0x00000000006EF000-memory.dmp
memory/4156-87-0x0000000000400000-0x00000000006EF000-memory.dmp
memory/4156-90-0x0000000000400000-0x00000000006EF000-memory.dmp
memory/4156-93-0x0000000000A80000-0x0000000000B22000-memory.dmp
memory/4620-65-0x0000000000400000-0x00000000006EF000-memory.dmp
memory/4620-71-0x0000000000400000-0x00000000006EF000-memory.dmp
memory/4620-70-0x0000000000400000-0x00000000006EF000-memory.dmp
memory/4620-66-0x0000000000400000-0x00000000006EF000-memory.dmp
memory/4784-76-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4784-2-0x0000000000401000-0x000000000040B000-memory.dmp
memory/4784-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4904-77-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/4904-13-0x0000000000400000-0x00000000004BA000-memory.dmp