Analysis
- max time kernel
142s - max time network
127s - platform
windows11-21h2_x64 - resource
win11-20240426-en - resource tags
- submitted
29/05/2024, 04:09
General
- Target baa9fc8f270eccf31e3bab307ed8d2380a842ed07c41553065bf879cef50ddc7.exe
- Size 4.7MB
- Sample240529-erblwsaa3z
- SHA256 baa9fc8f270eccf31e3bab307ed8d2380a842ed07c41553065bf879cef50ddc7
Malware Config
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\baa9fc8f270eccf31e3bab307ed8d2380a842ed07c41553065bf879cef50ddc7.exe"C:\Users\Admin\AppData\Local\Temp\baa9fc8f270eccf31e3bab307ed8d2380a842ed07c41553065bf879cef50ddc7.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-8GVGI.tmp\baa9fc8f270eccf31e3bab307ed8d2380a842ed07c41553065bf879cef50ddc7.tmp"C:\Users\Admin\AppData\Local\Temp\is-8GVGI.tmp\baa9fc8f270eccf31e3bab307ed8d2380a842ed07c41553065bf879cef50ddc7.tmp" /SL5="$40232,4665900,54272,C:\Users\Admin\AppData\Local\Temp\baa9fc8f270eccf31e3bab307ed8d2380a842ed07c41553065bf879cef50ddc7.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Free Ringtone Maker\freeringtonemaker.exe"C:\Users\Admin\AppData\Local\Free Ringtone Maker\freeringtonemaker.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Free Ringtone Maker\freeringtonemaker.exe"C:\Users\Admin\AppData\Local\Free Ringtone Maker\freeringtonemaker.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
freeringtonemaker.exe
baa9fc8f270eccf31e3bab307ed8d2380a842ed07c41553065bf879cef50ddc7.tmp
_iscrypt.dll
memory/2044-70-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/2044-13-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/3520-60-0x0000000000400000-0x00000000006E9000-memory.dmp
memory/3520-65-0x0000000000400000-0x00000000006E9000-memory.dmp
memory/3520-64-0x0000000000400000-0x00000000006E9000-memory.dmp
memory/3520-59-0x0000000000400000-0x00000000006E9000-memory.dmp
memory/3628-3-0x0000000000401000-0x000000000040B000-memory.dmp
memory/3628-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3628-69-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4772-74-0x0000000000400000-0x00000000006E9000-memory.dmp
memory/4772-95-0x0000000000400000-0x00000000006E9000-memory.dmp
memory/4772-68-0x0000000000400000-0x00000000006E9000-memory.dmp
memory/4772-75-0x0000000000400000-0x00000000006E9000-memory.dmp
memory/4772-78-0x0000000000400000-0x00000000006E9000-memory.dmp
memory/4772-81-0x0000000000400000-0x00000000006E9000-memory.dmp
memory/4772-84-0x0000000000400000-0x00000000006E9000-memory.dmp
memory/4772-87-0x0000000000A30000-0x0000000000AD2000-memory.dmp
memory/4772-90-0x0000000000400000-0x00000000006E9000-memory.dmp
memory/4772-71-0x0000000000400000-0x00000000006E9000-memory.dmp
memory/4772-98-0x0000000000400000-0x00000000006E9000-memory.dmp
memory/4772-101-0x0000000000400000-0x00000000006E9000-memory.dmp
memory/4772-104-0x0000000000400000-0x00000000006E9000-memory.dmp
memory/4772-107-0x0000000000400000-0x00000000006E9000-memory.dmp
memory/4772-110-0x0000000000400000-0x00000000006E9000-memory.dmp
memory/4772-111-0x0000000000A30000-0x0000000000AD2000-memory.dmp
memory/4772-112-0x0000000000A30000-0x0000000000AD2000-memory.dmp
memory/4772-116-0x0000000000400000-0x00000000006E9000-memory.dmp
memory/4772-119-0x0000000000400000-0x00000000006E9000-memory.dmp