Analysis
- max time kernel
146s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20240508-en - resource tags
- submitted
29/05/2024, 05:16
General
- Target 6421c09dcb3900ca8e8af52ff11ab40fc7a4f6d0cde5f6caacc5fc5c1c594bed.exe
- Size 5.5MB
- Sample240529-fx73qace38
- SHA256 6421c09dcb3900ca8e8af52ff11ab40fc7a4f6d0cde5f6caacc5fc5c1c594bed
Malware Config
Signatures
- Detect Socks5Systemz Payload 3 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\6421c09dcb3900ca8e8af52ff11ab40fc7a4f6d0cde5f6caacc5fc5c1c594bed.exe"C:\Users\Admin\AppData\Local\Temp\6421c09dcb3900ca8e8af52ff11ab40fc7a4f6d0cde5f6caacc5fc5c1c594bed.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-OMLKR.tmp\6421c09dcb3900ca8e8af52ff11ab40fc7a4f6d0cde5f6caacc5fc5c1c594bed.tmp"C:\Users\Admin\AppData\Local\Temp\is-OMLKR.tmp\6421c09dcb3900ca8e8af52ff11ab40fc7a4f6d0cde5f6caacc5fc5c1c594bed.tmp" /SL5="$60206,5489150,54272,C:\Users\Admin\AppData\Local\Temp\6421c09dcb3900ca8e8af52ff11ab40fc7a4f6d0cde5f6caacc5fc5c1c594bed.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
_iscrypt.dll
_isdecmp.dll
6421c09dcb3900ca8e8af52ff11ab40fc7a4f6d0cde5f6caacc5fc5c1c594bed.tmp
memory/1216-76-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1216-3-0x0000000000401000-0x000000000040B000-memory.dmp
memory/1216-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2328-105-0x0000000000400000-0x00000000006EA000-memory.dmp
memory/2328-111-0x0000000000400000-0x00000000006EA000-memory.dmp
memory/2328-126-0x0000000000400000-0x00000000006EA000-memory.dmp
memory/2328-123-0x0000000000400000-0x00000000006EA000-memory.dmp
memory/2328-73-0x0000000000400000-0x00000000006EA000-memory.dmp
memory/2328-75-0x0000000000400000-0x00000000006EA000-memory.dmp
memory/2328-119-0x0000000000A80000-0x0000000000B22000-memory.dmp
memory/2328-118-0x0000000000A80000-0x0000000000B22000-memory.dmp
memory/2328-78-0x0000000000400000-0x00000000006EA000-memory.dmp
memory/2328-81-0x0000000000400000-0x00000000006EA000-memory.dmp
memory/2328-82-0x0000000000400000-0x00000000006EA000-memory.dmp
memory/2328-85-0x0000000000400000-0x00000000006EA000-memory.dmp
memory/2328-88-0x0000000000400000-0x00000000006EA000-memory.dmp
memory/2328-91-0x0000000000400000-0x00000000006EA000-memory.dmp
memory/2328-94-0x0000000000A80000-0x0000000000B22000-memory.dmp
memory/2328-96-0x0000000000400000-0x00000000006EA000-memory.dmp
memory/2328-102-0x0000000000400000-0x00000000006EA000-memory.dmp
memory/2328-117-0x0000000000400000-0x00000000006EA000-memory.dmp
memory/2328-108-0x0000000000400000-0x00000000006EA000-memory.dmp
memory/2328-114-0x0000000000400000-0x00000000006EA000-memory.dmp
memory/3740-66-0x0000000000400000-0x00000000006EA000-memory.dmp
memory/3740-65-0x0000000000400000-0x00000000006EA000-memory.dmp
memory/3740-71-0x0000000000400000-0x00000000006EA000-memory.dmp
memory/3740-69-0x0000000000400000-0x00000000006EA000-memory.dmp
memory/4368-13-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/4368-77-0x0000000000400000-0x00000000004BA000-memory.dmp