Analysis
- max time kernel
142s - max time network
132s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
04/08/2024, 13:24
General
- Target IkpQaE4MtUvIW5WFsHjc3NdL.exe
- Size 4.1MB
- Sample240804-qnslsazhqa
- SHA256 a045aae04ded2c18b1ab1e206c18bf954844afd6b9c6e9efcecc4cc05dae71da
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.
- 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\IkpQaE4MtUvIW5WFsHjc3NdL.exe"C:\Users\Admin\AppData\Local\Temp\IkpQaE4MtUvIW5WFsHjc3NdL.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-BKOAV.tmp\IkpQaE4MtUvIW5WFsHjc3NdL.tmp"C:\Users\Admin\AppData\Local\Temp\is-BKOAV.tmp\IkpQaE4MtUvIW5WFsHjc3NdL.tmp" /SL5="$5028A,4067069,54272,C:\Users\Admin\AppData\Local\Temp\IkpQaE4MtUvIW5WFsHjc3NdL.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\Combiner Free\combinerfree32.exe"C:\Users\Admin\AppData\Local\Combiner Free\combinerfree32.exe" -i3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
-
C:\Users\Admin\AppData\Local\Combiner Free\combinerfree32.exe"C:\Users\Admin\AppData\Local\Combiner Free\combinerfree32.exe" -s3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
combinerfree32.exe
IkpQaE4MtUvIW5WFsHjc3NdL.tmp
_iscrypt.dll
_isdecmp.dll
memory/2088-67-0x0000000000400000-0x00000000004BD000-memory.dmp
memory/2088-13-0x0000000000400000-0x00000000004BD000-memory.dmp
memory/2924-61-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/2924-58-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/2924-59-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/4188-71-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/4188-90-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/4188-114-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/4188-111-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/4188-68-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/4188-107-0x0000000000830000-0x00000000008D2000-memory.dmp
memory/4188-74-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/4188-77-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/4188-80-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/4188-83-0x0000000000830000-0x00000000008D2000-memory.dmp
memory/4188-87-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/4188-65-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/4188-93-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/4188-96-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/4188-99-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/4188-102-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/4188-105-0x0000000000400000-0x00000000006C5000-memory.dmp
memory/4188-106-0x0000000000830000-0x00000000008D2000-memory.dmp
memory/4816-1-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4816-2-0x0000000000401000-0x000000000040B000-memory.dmp
memory/4816-66-0x0000000000400000-0x0000000000414000-memory.dmp