Analysis
- max time kernel
147s - max time network
151s - platform
windows11-21h2_x64 - resource
win11-20240802-en - resource tags
- submitted
10/08/2024, 17:06
General
- Target 6669cfe1a66285212591f241bc934cb4e7dfcb4858da758a87952b514f58094b.exe
- Size 4.4MB
- Sample240810-vmvf7staja
- SHA256 6669cfe1a66285212591f241bc934cb4e7dfcb4858da758a87952b514f58094b
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\6669cfe1a66285212591f241bc934cb4e7dfcb4858da758a87952b514f58094b.exe"C:\Users\Admin\AppData\Local\Temp\6669cfe1a66285212591f241bc934cb4e7dfcb4858da758a87952b514f58094b.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-QLDQN.tmp\6669cfe1a66285212591f241bc934cb4e7dfcb4858da758a87952b514f58094b.tmp"C:\Users\Admin\AppData\Local\Temp\is-QLDQN.tmp\6669cfe1a66285212591f241bc934cb4e7dfcb4858da758a87952b514f58094b.tmp" /SL5="$F024E,4326306,54272,C:\Users\Admin\AppData\Local\Temp\6669cfe1a66285212591f241bc934cb4e7dfcb4858da758a87952b514f58094b.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\AVI Codec\avicodec32.exe"C:\Users\Admin\AppData\Local\AVI Codec\avicodec32.exe" -i3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
-
C:\Users\Admin\AppData\Local\AVI Codec\avicodec32.exe"C:\Users\Admin\AppData\Local\AVI Codec\avicodec32.exe" -s3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
avicodec32.exe
_iscrypt.dll
_isdecmp.dll
6669cfe1a66285212591f241bc934cb4e7dfcb4858da758a87952b514f58094b.tmp
memory/1120-58-0x0000000000400000-0x0000000000845000-memory.dmp
memory/1120-62-0x0000000000400000-0x0000000000845000-memory.dmp
memory/1120-63-0x0000000000400000-0x0000000000845000-memory.dmp
memory/1120-59-0x0000000000400000-0x0000000000845000-memory.dmp
memory/1628-73-0x0000000000400000-0x0000000000845000-memory.dmp
memory/1628-82-0x0000000000400000-0x0000000000845000-memory.dmp
memory/1628-116-0x0000000000400000-0x0000000000845000-memory.dmp
memory/1628-66-0x0000000000400000-0x0000000000845000-memory.dmp
memory/1628-111-0x0000000000C80000-0x0000000000D22000-memory.dmp
memory/1628-112-0x0000000000C80000-0x0000000000D22000-memory.dmp
memory/1628-69-0x0000000000400000-0x0000000000845000-memory.dmp
memory/1628-72-0x0000000000400000-0x0000000000845000-memory.dmp
memory/1628-110-0x0000000000400000-0x0000000000845000-memory.dmp
memory/1628-76-0x0000000000400000-0x0000000000845000-memory.dmp
memory/1628-79-0x0000000000400000-0x0000000000845000-memory.dmp
memory/1628-107-0x0000000000400000-0x0000000000845000-memory.dmp
memory/1628-85-0x0000000000400000-0x0000000000845000-memory.dmp
memory/1628-86-0x0000000000C80000-0x0000000000D22000-memory.dmp
memory/1628-92-0x0000000000400000-0x0000000000845000-memory.dmp
memory/1628-95-0x0000000000400000-0x0000000000845000-memory.dmp
memory/1628-98-0x0000000000400000-0x0000000000845000-memory.dmp
memory/1628-101-0x0000000000400000-0x0000000000845000-memory.dmp
memory/1628-104-0x0000000000400000-0x0000000000845000-memory.dmp
memory/2368-22-0x0000000000400000-0x00000000004BD000-memory.dmp
memory/2368-68-0x0000000000400000-0x00000000004BD000-memory.dmp
memory/3904-1-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3904-67-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3904-2-0x0000000000401000-0x000000000040B000-memory.dmp