Analysis
- max time kernel
142s - max time network
129s - platform
windows10-2004_x64 - resource
win10v2004-20240730-en - resource tags
- submitted
31/07/2024, 16:11
General
- Target f48e42a4f90d5daa4a95940b17db287f.exe
- Size 3.8MB
- Sample240731-tmxqwsxake
- SHA256 df2a73d62d5706ab059daf98d8e97e682287bd915ec0ca5fd1760171b9869a51
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.
- System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\f48e42a4f90d5daa4a95940b17db287f.exe"C:\Users\Admin\AppData\Local\Temp\f48e42a4f90d5daa4a95940b17db287f.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-UVID5.tmp\f48e42a4f90d5daa4a95940b17db287f.tmp"C:\Users\Admin\AppData\Local\Temp\is-UVID5.tmp\f48e42a4f90d5daa4a95940b17db287f.tmp" /SL5="$502B8,3708470,54272,C:\Users\Admin\AppData\Local\Temp\f48e42a4f90d5daa4a95940b17db287f.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Direct MIDI to MP3 Converter\midi2mp3converter.exe"C:\Users\Admin\AppData\Local\Direct MIDI to MP3 Converter\midi2mp3converter.exe" -i3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
-
C:\Users\Admin\AppData\Local\Direct MIDI to MP3 Converter\midi2mp3converter.exe"C:\Users\Admin\AppData\Local\Direct MIDI to MP3 Converter\midi2mp3converter.exe" -s3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
midi2mp3converter.exe
_iscrypt.dll
f48e42a4f90d5daa4a95940b17db287f.tmp
memory/836-52-0x0000000000400000-0x000000000081A000-memory.dmp
memory/836-55-0x0000000000400000-0x000000000081A000-memory.dmp
memory/836-53-0x0000000000400000-0x000000000081A000-memory.dmp
memory/836-56-0x0000000000400000-0x000000000081A000-memory.dmp
memory/3492-60-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3492-2-0x0000000000401000-0x000000000040B000-memory.dmp
memory/3492-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3684-65-0x0000000000400000-0x000000000081A000-memory.dmp
memory/3684-79-0x0000000000400000-0x000000000081A000-memory.dmp
memory/3684-108-0x0000000000400000-0x000000000081A000-memory.dmp
memory/3684-62-0x0000000000400000-0x000000000081A000-memory.dmp
memory/3684-105-0x0000000000400000-0x000000000081A000-memory.dmp
memory/3684-68-0x0000000000400000-0x000000000081A000-memory.dmp
memory/3684-71-0x0000000000400000-0x000000000081A000-memory.dmp
memory/3684-74-0x0000000000400000-0x000000000081A000-memory.dmp
memory/3684-77-0x0000000000920000-0x00000000009C2000-memory.dmp
memory/3684-59-0x0000000000400000-0x000000000081A000-memory.dmp
memory/3684-84-0x0000000000400000-0x000000000081A000-memory.dmp
memory/3684-87-0x0000000000400000-0x000000000081A000-memory.dmp
memory/3684-90-0x0000000000400000-0x000000000081A000-memory.dmp
memory/3684-93-0x0000000000400000-0x000000000081A000-memory.dmp
memory/3684-96-0x0000000000400000-0x000000000081A000-memory.dmp
memory/3684-99-0x0000000000400000-0x000000000081A000-memory.dmp
memory/3684-100-0x0000000000920000-0x00000000009C2000-memory.dmp
memory/3684-101-0x0000000000920000-0x00000000009C2000-memory.dmp
memory/3864-12-0x0000000000400000-0x00000000004BD000-memory.dmp
memory/3864-61-0x0000000000400000-0x00000000004BD000-memory.dmp