Analysis
- max time kernel
142s - max time network
128s - platform
windows10-2004_x64 - resource
win10v2004-20240730-en - resource tags
- submitted
31/07/2024, 22:06
General
- Target 2819912c1cf7a4fd8fe1fc96a54cd267.exe
- Size 3.8MB
- Sample240731-1z2zps1amd
- SHA256 ae8c02bd39bf583e222817248160a8833283074da48e7f8eb06cbeecdfac93cd
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\2819912c1cf7a4fd8fe1fc96a54cd267.exe"C:\Users\Admin\AppData\Local\Temp\2819912c1cf7a4fd8fe1fc96a54cd267.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-IRGTF.tmp\2819912c1cf7a4fd8fe1fc96a54cd267.tmp"C:\Users\Admin\AppData\Local\Temp\is-IRGTF.tmp\2819912c1cf7a4fd8fe1fc96a54cd267.tmp" /SL5="$801C0,3672956,54272,C:\Users\Admin\AppData\Local\Temp\2819912c1cf7a4fd8fe1fc96a54cd267.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
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
midi2mp3converter.exe
2819912c1cf7a4fd8fe1fc96a54cd267.tmp
_iscrypt.dll
memory/1188-52-0x0000000000400000-0x000000000081A000-memory.dmp
memory/1188-57-0x0000000000400000-0x000000000081A000-memory.dmp
memory/1188-55-0x0000000000400000-0x000000000081A000-memory.dmp
memory/1188-53-0x0000000000400000-0x000000000081A000-memory.dmp
memory/1700-68-0x0000000000400000-0x000000000081A000-memory.dmp
memory/1700-79-0x0000000000400000-0x000000000081A000-memory.dmp
memory/1700-108-0x0000000000400000-0x000000000081A000-memory.dmp
memory/1700-105-0x0000000000400000-0x000000000081A000-memory.dmp
memory/1700-101-0x0000000000A80000-0x0000000000B22000-memory.dmp
memory/1700-62-0x0000000000400000-0x000000000081A000-memory.dmp
memory/1700-65-0x0000000000400000-0x000000000081A000-memory.dmp
memory/1700-100-0x0000000000A80000-0x0000000000B22000-memory.dmp
memory/1700-71-0x0000000000400000-0x000000000081A000-memory.dmp
memory/1700-74-0x0000000000400000-0x000000000081A000-memory.dmp
memory/1700-77-0x0000000000A80000-0x0000000000B22000-memory.dmp
memory/1700-99-0x0000000000400000-0x000000000081A000-memory.dmp
memory/1700-84-0x0000000000400000-0x000000000081A000-memory.dmp
memory/1700-87-0x0000000000400000-0x000000000081A000-memory.dmp
memory/1700-90-0x0000000000400000-0x000000000081A000-memory.dmp
memory/1700-93-0x0000000000400000-0x000000000081A000-memory.dmp
memory/1700-96-0x0000000000400000-0x000000000081A000-memory.dmp
memory/3116-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3116-60-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3116-2-0x0000000000401000-0x000000000040B000-memory.dmp
memory/4528-12-0x0000000000400000-0x00000000004BD000-memory.dmp
memory/4528-61-0x0000000000400000-0x00000000004BD000-memory.dmp