Analysis
- max time kernel
298s - max time network
257s - platform
windows7_x64 - resource
win7-20240221-en - resource tags
- submitted
06/06/2024, 23:27
General
- Target 41f28d209b1a89fec77236983d64bbf13f0b5a7178205b9402766d74271128b3.exe
- Size 6.9MB
- Sample240606-3fsb9sdf2x
- SHA256 41f28d209b1a89fec77236983d64bbf13f0b5a7178205b9402766d74271128b3
Malware Config
Signatures
- Detect Socks5Systemz Payload 1 IoCs
- Socks5Systemz
Socks5Systemz is a botnet written in C++.
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 6 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 15 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\41f28d209b1a89fec77236983d64bbf13f0b5a7178205b9402766d74271128b3.exe"C:\Users\Admin\AppData\Local\Temp\41f28d209b1a89fec77236983d64bbf13f0b5a7178205b9402766d74271128b3.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-0OHVK.tmp\41f28d209b1a89fec77236983d64bbf13f0b5a7178205b9402766d74271128b3.tmp"C:\Users\Admin\AppData\Local\Temp\is-0OHVK.tmp\41f28d209b1a89fec77236983d64bbf13f0b5a7178205b9402766d74271128b3.tmp" /SL5="$40150,7015397,54272,C:\Users\Admin\AppData\Local\Temp\41f28d209b1a89fec77236983d64bbf13f0b5a7178205b9402766d74271128b3.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
41f28d209b1a89fec77236983d64bbf13f0b5a7178205b9402766d74271128b3.tmp
_iscrypt.dll
_isdecmp.dll
_shfoldr.dll
voicechangeremerald32.exe
memory/1288-2-0x0000000000401000-0x000000000040B000-memory.dmp
memory/1288-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1288-77-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2472-73-0x0000000000400000-0x00000000008AE000-memory.dmp
memory/2472-68-0x0000000000400000-0x00000000008AE000-memory.dmp
memory/2472-69-0x0000000000400000-0x00000000008AE000-memory.dmp
memory/2544-86-0x0000000000400000-0x00000000008AE000-memory.dmp
memory/2544-124-0x0000000000400000-0x00000000008AE000-memory.dmp
memory/2544-141-0x0000000000400000-0x00000000008AE000-memory.dmp
memory/2544-136-0x0000000000400000-0x00000000008AE000-memory.dmp
memory/2544-79-0x0000000000400000-0x00000000008AE000-memory.dmp
memory/2544-133-0x0000000000400000-0x00000000008AE000-memory.dmp
memory/2544-83-0x0000000000400000-0x00000000008AE000-memory.dmp
memory/2544-130-0x0000000000400000-0x00000000008AE000-memory.dmp
memory/2544-89-0x0000000000400000-0x00000000008AE000-memory.dmp
memory/2544-92-0x0000000000400000-0x00000000008AE000-memory.dmp
memory/2544-95-0x0000000000400000-0x00000000008AE000-memory.dmp
memory/2544-96-0x0000000002410000-0x00000000024B2000-memory.dmp
memory/2544-102-0x0000000000400000-0x00000000008AE000-memory.dmp
memory/2544-105-0x0000000000400000-0x00000000008AE000-memory.dmp
memory/2544-108-0x0000000000400000-0x00000000008AE000-memory.dmp
memory/2544-111-0x0000000000400000-0x00000000008AE000-memory.dmp
memory/2544-114-0x0000000000400000-0x00000000008AE000-memory.dmp
memory/2544-117-0x0000000000400000-0x00000000008AE000-memory.dmp
memory/2544-121-0x0000000000400000-0x00000000008AE000-memory.dmp
memory/2544-75-0x0000000000400000-0x00000000008AE000-memory.dmp
memory/2544-127-0x0000000000400000-0x00000000008AE000-memory.dmp
memory/2744-12-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/2744-82-0x0000000003100000-0x00000000035AE000-memory.dmp
memory/2744-78-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/2744-66-0x0000000003100000-0x00000000035AE000-memory.dmp