Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
02/06/2024, 06:03
General
- Target 26f087278fbc0f3465350e4a6adcf85dca0be62a2797bd20b26b76748f636b9b.exe
- Size 7.0MB
- Sample240602-gr18nadc3t
- SHA256 26f087278fbc0f3465350e4a6adcf85dca0be62a2797bd20b26b76748f636b9b
Malware Config
Signatures
- Detect Socks5Systemz Payload 1 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\26f087278fbc0f3465350e4a6adcf85dca0be62a2797bd20b26b76748f636b9b.exe"C:\Users\Admin\AppData\Local\Temp\26f087278fbc0f3465350e4a6adcf85dca0be62a2797bd20b26b76748f636b9b.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-BIRV3.tmp\26f087278fbc0f3465350e4a6adcf85dca0be62a2797bd20b26b76748f636b9b.tmp"C:\Users\Admin\AppData\Local\Temp\is-BIRV3.tmp\26f087278fbc0f3465350e4a6adcf85dca0be62a2797bd20b26b76748f636b9b.tmp" /SL5="$601DA,7089081,54272,C:\Users\Admin\AppData\Local\Temp\26f087278fbc0f3465350e4a6adcf85dca0be62a2797bd20b26b76748f636b9b.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Voice Changer Emerald\voicechangeremerald.exe"C:\Users\Admin\AppData\Local\Voice Changer Emerald\voicechangeremerald.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Voice Changer Emerald\voicechangeremerald.exe"C:\Users\Admin\AppData\Local\Voice Changer Emerald\voicechangeremerald.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
_iscrypt.dll
_isdecmp.dll
26f087278fbc0f3465350e4a6adcf85dca0be62a2797bd20b26b76748f636b9b.tmp
voicechangeremerald.exe
memory/1152-10-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/1152-75-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/2752-74-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2752-3-0x0000000000401000-0x000000000040B000-memory.dmp
memory/2752-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2892-101-0x0000000000400000-0x00000000008DC000-memory.dmp
memory/2892-89-0x0000000000A30000-0x0000000000AD2000-memory.dmp
memory/2892-120-0x0000000000400000-0x00000000008DC000-memory.dmp
memory/2892-117-0x0000000000400000-0x00000000008DC000-memory.dmp
memory/2892-76-0x0000000000400000-0x00000000008DC000-memory.dmp
memory/2892-79-0x0000000000400000-0x00000000008DC000-memory.dmp
memory/2892-82-0x0000000000400000-0x00000000008DC000-memory.dmp
memory/2892-85-0x0000000000400000-0x00000000008DC000-memory.dmp
memory/2892-88-0x0000000000400000-0x00000000008DC000-memory.dmp
memory/2892-73-0x0000000000400000-0x00000000008DC000-memory.dmp
memory/2892-93-0x0000000000400000-0x00000000008DC000-memory.dmp
memory/2892-98-0x0000000000400000-0x00000000008DC000-memory.dmp
memory/2892-113-0x0000000000400000-0x00000000008DC000-memory.dmp
memory/2892-104-0x0000000000400000-0x00000000008DC000-memory.dmp
memory/2892-107-0x0000000000400000-0x00000000008DC000-memory.dmp
memory/2892-110-0x0000000000400000-0x00000000008DC000-memory.dmp
memory/3904-65-0x0000000000400000-0x00000000008DC000-memory.dmp
memory/3904-66-0x0000000000400000-0x00000000008DC000-memory.dmp
memory/3904-70-0x0000000000400000-0x00000000008DC000-memory.dmp