Analysis
- max time kernel
142s - max time network
127s - platform
windows11-21h2_x64 - resource
win11-20240508-en - resource tags
- submitted
02/06/2024, 13:12
General
- Target 899e5915de1164265483145b9f187ab4d4e58178b88af20d6fc98c298a0fd3f7.exe
- Size 7.0MB
- Sample240602-qfpj6aea44
- SHA256 899e5915de1164265483145b9f187ab4d4e58178b88af20d6fc98c298a0fd3f7
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.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\899e5915de1164265483145b9f187ab4d4e58178b88af20d6fc98c298a0fd3f7.exe"C:\Users\Admin\AppData\Local\Temp\899e5915de1164265483145b9f187ab4d4e58178b88af20d6fc98c298a0fd3f7.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-FK0BA.tmp\899e5915de1164265483145b9f187ab4d4e58178b88af20d6fc98c298a0fd3f7.tmp"C:\Users\Admin\AppData\Local\Temp\is-FK0BA.tmp\899e5915de1164265483145b9f187ab4d4e58178b88af20d6fc98c298a0fd3f7.tmp" /SL5="$500DC,7039073,54272,C:\Users\Admin\AppData\Local\Temp\899e5915de1164265483145b9f187ab4d4e58178b88af20d6fc98c298a0fd3f7.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Voice Changer Emerald\voicechangeremerald32.exe"C:\Users\Admin\AppData\Local\Voice Changer Emerald\voicechangeremerald32.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Voice Changer Emerald\voicechangeremerald32.exe"C:\Users\Admin\AppData\Local\Voice Changer Emerald\voicechangeremerald32.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
_iscrypt.dll
_isdecmp.dll
899e5915de1164265483145b9f187ab4d4e58178b88af20d6fc98c298a0fd3f7.tmp
voicechangeremerald32.exe
memory/1368-7-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/1368-76-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/2172-75-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2172-2-0x0000000000401000-0x000000000040B000-memory.dmp
memory/2172-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3904-99-0x0000000000400000-0x00000000008C8000-memory.dmp
memory/3904-96-0x0000000000400000-0x00000000008C8000-memory.dmp
memory/3904-74-0x0000000000400000-0x00000000008C8000-memory.dmp
memory/3904-123-0x0000000000400000-0x00000000008C8000-memory.dmp
memory/3904-120-0x0000000000400000-0x00000000008C8000-memory.dmp
memory/3904-77-0x0000000000400000-0x00000000008C8000-memory.dmp
memory/3904-80-0x0000000000400000-0x00000000008C8000-memory.dmp
memory/3904-83-0x0000000000400000-0x00000000008C8000-memory.dmp
memory/3904-86-0x0000000000400000-0x00000000008C8000-memory.dmp
memory/3904-89-0x0000000000400000-0x00000000008C8000-memory.dmp
memory/3904-92-0x00000000026D0000-0x0000000002772000-memory.dmp
memory/3904-116-0x00000000026D0000-0x0000000002772000-memory.dmp
memory/3904-115-0x00000000026D0000-0x0000000002772000-memory.dmp
memory/3904-102-0x0000000000400000-0x00000000008C8000-memory.dmp
memory/3904-105-0x0000000000400000-0x00000000008C8000-memory.dmp
memory/3904-108-0x0000000000400000-0x00000000008C8000-memory.dmp
memory/3904-111-0x0000000000400000-0x00000000008C8000-memory.dmp
memory/3904-114-0x0000000000400000-0x00000000008C8000-memory.dmp
memory/5068-66-0x0000000000400000-0x00000000008C8000-memory.dmp
memory/5068-71-0x0000000000400000-0x00000000008C8000-memory.dmp
memory/5068-65-0x0000000000400000-0x00000000008C8000-memory.dmp
memory/5068-69-0x0000000000400000-0x00000000008C8000-memory.dmp