Analysis
- max time kernel
141s - max time network
125s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
08/10/2024, 19:52
General
- Target file.exe
- Size 3.8MB
- Sample241008-yldc3stdqf
- SHA256 b6fb07e46f25791031cf861958152e68132e68caa3a3465ae54be296cca7ca3f
Malware Config
Signatures
- Detect Socks5Systemz Payload 1 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\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-S0A1B.tmp\is-8GJDK.tmp"C:\Users\Admin\AppData\Local\Temp\is-S0A1B.tmp\is-8GJDK.tmp" /SL4 $E005E "C:\Users\Admin\AppData\Local\Temp\file.exe" 3705946 522242⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Raff Txt To Sub\txttosub32_64.exe"C:\Users\Admin\AppData\Local\Raff Txt To Sub\txttosub32_64.exe" -i3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
txttosub32_64.exe
_iscrypt.dll
is-8GJDK.tmp
memory/1520-84-0x0000000000400000-0x00000000004B0000-memory.dmp
memory/1520-13-0x0000000000400000-0x00000000004B0000-memory.dmp
memory/2932-0-0x0000000000400000-0x0000000000413000-memory.dmp
memory/2932-2-0x0000000000401000-0x000000000040A000-memory.dmp
memory/2932-85-0x0000000000400000-0x0000000000413000-memory.dmp
memory/4524-94-0x0000000000400000-0x000000000072D000-memory.dmp
memory/4524-111-0x0000000000400000-0x000000000072D000-memory.dmp
memory/4524-80-0x0000000000400000-0x000000000072D000-memory.dmp
memory/4524-87-0x0000000000400000-0x000000000072D000-memory.dmp
memory/4524-88-0x0000000000400000-0x000000000072D000-memory.dmp
memory/4524-91-0x0000000000400000-0x000000000072D000-memory.dmp
memory/4524-79-0x0000000000400000-0x000000000072D000-memory.dmp
memory/4524-97-0x0000000000400000-0x000000000072D000-memory.dmp
memory/4524-100-0x0000000000400000-0x000000000072D000-memory.dmp
memory/4524-105-0x0000000000400000-0x000000000072D000-memory.dmp
memory/4524-104-0x00000000009C0000-0x0000000000A62000-memory.dmp
memory/4524-83-0x0000000000400000-0x000000000072D000-memory.dmp
memory/4524-112-0x0000000000400000-0x000000000072D000-memory.dmp
memory/4524-115-0x0000000000400000-0x000000000072D000-memory.dmp
memory/4524-116-0x0000000000400000-0x000000000072D000-memory.dmp
memory/4524-119-0x0000000000400000-0x000000000072D000-memory.dmp
memory/4524-122-0x0000000000400000-0x000000000072D000-memory.dmp
memory/4524-125-0x0000000000400000-0x000000000072D000-memory.dmp
memory/4524-128-0x0000000000400000-0x000000000072D000-memory.dmp
memory/4524-132-0x0000000000400000-0x000000000072D000-memory.dmp
memory/4524-135-0x0000000000400000-0x000000000072D000-memory.dmp