Analysis
- max time kernel
147s - max time network
127s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
19/10/2024, 08:26
General
- Target b65f0df11a035884b02dd0dcd7c5aeb6.exe
- Size 4.1MB
- Sample241019-kbvbyswfjd
- SHA256 f6e8d1f5a092577675ecdd30ea4678c07840f16a2bf0d80ea014b810f7ee051c
Malware Config
Signatures
- Detect Socks5Systemz Payload 3 IoCs
- Socks5Systemz
Socks5Systemz is a botnet written in C++.
- Executes dropped EXE 2 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.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\b65f0df11a035884b02dd0dcd7c5aeb6.exe"C:\Users\Admin\AppData\Local\Temp\b65f0df11a035884b02dd0dcd7c5aeb6.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-5GLVK.tmp\b65f0df11a035884b02dd0dcd7c5aeb6.exe.tmp"C:\Users\Admin\AppData\Local\Temp\is-5GLVK.tmp\b65f0df11a035884b02dd0dcd7c5aeb6.exe.tmp" /SL5="$502CC,4027125,53248,C:\Users\Admin\AppData\Local\Temp\b65f0df11a035884b02dd0dcd7c5aeb6.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Jazz Media Player\jazzmediaplayer3.exe"C:\Users\Admin\AppData\Local\Jazz Media Player\jazzmediaplayer3.exe" -i3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
jazzmediaplayer3.exe
_iscrypt.dll
b65f0df11a035884b02dd0dcd7c5aeb6.exe.tmp
memory/1536-84-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/1536-10-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/1844-94-0x0000000000400000-0x0000000000703000-memory.dmp
memory/1844-104-0x00000000009A0000-0x0000000000A42000-memory.dmp
memory/1844-80-0x0000000000400000-0x0000000000703000-memory.dmp
memory/1844-83-0x0000000000400000-0x0000000000703000-memory.dmp
memory/1844-135-0x0000000000400000-0x0000000000703000-memory.dmp
memory/1844-132-0x0000000000400000-0x0000000000703000-memory.dmp
memory/1844-87-0x0000000000400000-0x0000000000703000-memory.dmp
memory/1844-88-0x0000000000400000-0x0000000000703000-memory.dmp
memory/1844-91-0x0000000000400000-0x0000000000703000-memory.dmp
memory/1844-127-0x00000000009A0000-0x0000000000A42000-memory.dmp
memory/1844-97-0x0000000000400000-0x0000000000703000-memory.dmp
memory/1844-100-0x0000000000400000-0x0000000000703000-memory.dmp
memory/1844-103-0x0000000000400000-0x0000000000703000-memory.dmp
memory/1844-79-0x0000000000400000-0x0000000000703000-memory.dmp
memory/1844-110-0x0000000000400000-0x0000000000703000-memory.dmp
memory/1844-113-0x0000000000400000-0x0000000000703000-memory.dmp
memory/1844-114-0x0000000000400000-0x0000000000703000-memory.dmp
memory/1844-117-0x0000000000400000-0x0000000000703000-memory.dmp
memory/1844-120-0x0000000000400000-0x0000000000703000-memory.dmp
memory/1844-123-0x0000000000400000-0x0000000000703000-memory.dmp
memory/1844-126-0x0000000000400000-0x0000000000703000-memory.dmp
memory/1844-128-0x00000000009A0000-0x0000000000A42000-memory.dmp
memory/3556-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3556-85-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3556-2-0x0000000000401000-0x000000000040B000-memory.dmp