Analysis
- max time kernel
141s - max time network
130s - platform
windows11-21h2_x64 - resource
win11-20240508-en - resource tags
- submitted
29/05/2024, 04:57
General
- Target 7d77a37d5201054470ebc803edc64fd81cf97e00f76eb1a2a3f6b95f11c7bc18.exe
- Size 4.9MB
- Sample240529-flcgnsbb5w
- SHA256 7d77a37d5201054470ebc803edc64fd81cf97e00f76eb1a2a3f6b95f11c7bc18
Malware Config
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\7d77a37d5201054470ebc803edc64fd81cf97e00f76eb1a2a3f6b95f11c7bc18.exe"C:\Users\Admin\AppData\Local\Temp\7d77a37d5201054470ebc803edc64fd81cf97e00f76eb1a2a3f6b95f11c7bc18.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-4DBHU.tmp\7d77a37d5201054470ebc803edc64fd81cf97e00f76eb1a2a3f6b95f11c7bc18.tmp"C:\Users\Admin\AppData\Local\Temp\is-4DBHU.tmp\7d77a37d5201054470ebc803edc64fd81cf97e00f76eb1a2a3f6b95f11c7bc18.tmp" /SL5="$4021C,4881552,54272,C:\Users\Admin\AppData\Local\Temp\7d77a37d5201054470ebc803edc64fd81cf97e00f76eb1a2a3f6b95f11c7bc18.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
7d77a37d5201054470ebc803edc64fd81cf97e00f76eb1a2a3f6b95f11c7bc18.tmp
_iscrypt.dll
memory/708-69-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/708-16-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/2836-96-0x0000000000400000-0x0000000000719000-memory.dmp
memory/2836-102-0x0000000000400000-0x0000000000719000-memory.dmp
memory/2836-115-0x0000000000400000-0x0000000000719000-memory.dmp
memory/2836-112-0x0000000000400000-0x0000000000719000-memory.dmp
memory/2836-108-0x0000000000400000-0x0000000000719000-memory.dmp
memory/2836-67-0x0000000000400000-0x0000000000719000-memory.dmp
memory/2836-105-0x0000000000400000-0x0000000000719000-memory.dmp
memory/2836-99-0x0000000000400000-0x0000000000719000-memory.dmp
memory/2836-70-0x0000000000400000-0x0000000000719000-memory.dmp
memory/2836-73-0x0000000000400000-0x0000000000719000-memory.dmp
memory/2836-76-0x0000000000400000-0x0000000000719000-memory.dmp
memory/2836-79-0x0000000000400000-0x0000000000719000-memory.dmp
memory/2836-82-0x0000000000400000-0x0000000000719000-memory.dmp
memory/2836-85-0x0000000000A00000-0x0000000000AA2000-memory.dmp
memory/2836-88-0x0000000000400000-0x0000000000719000-memory.dmp
memory/2836-93-0x0000000000400000-0x0000000000719000-memory.dmp
memory/3564-68-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3564-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3564-2-0x0000000000401000-0x000000000040B000-memory.dmp
memory/4676-59-0x0000000000400000-0x0000000000719000-memory.dmp
memory/4676-64-0x0000000000400000-0x0000000000719000-memory.dmp
memory/4676-63-0x0000000000400000-0x0000000000719000-memory.dmp
memory/4676-60-0x0000000000400000-0x0000000000719000-memory.dmp