Analysis
- max time kernel
147s - max time network
151s - platform
windows11-21h2_x64 - resource
win11-20240508-en - resource tags
- submitted
24/06/2024, 23:56
General
- Target 334f135e2400b5864b510849e927bd45ef0864e0f6b0ad291f5e2c3347c9b15f.exe
- Size 4.8MB
- Sample240624-3y3kyssdpl
- SHA256 334f135e2400b5864b510849e927bd45ef0864e0f6b0ad291f5e2c3347c9b15f
Malware Config
Extracted
-
socks5systemz
-
ccjyjoo.net
Signatures
- Detect Socks5Systemz Payload 1 IoCs
- Socks5Systemz
Socks5Systemz is a botnet written in C++.
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 1 IoCs
- Unexpected DNS network traffic destination 3 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\334f135e2400b5864b510849e927bd45ef0864e0f6b0ad291f5e2c3347c9b15f.exe"C:\Users\Admin\AppData\Local\Temp\334f135e2400b5864b510849e927bd45ef0864e0f6b0ad291f5e2c3347c9b15f.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-7KGVT.tmp\334f135e2400b5864b510849e927bd45ef0864e0f6b0ad291f5e2c3347c9b15f.tmp"C:\Users\Admin\AppData\Local\Temp\is-7KGVT.tmp\334f135e2400b5864b510849e927bd45ef0864e0f6b0ad291f5e2c3347c9b15f.tmp" /SL5="$70232,4744462,54272,C:\Users\Admin\AppData\Local\Temp\334f135e2400b5864b510849e927bd45ef0864e0f6b0ad291f5e2c3347c9b15f.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Winypux\winypux32.exe"C:\Users\Admin\AppData\Local\Winypux\winypux32.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Winypux\winypux32.exe"C:\Users\Admin\AppData\Local\Winypux\winypux32.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
_iscrypt.dll
334f135e2400b5864b510849e927bd45ef0864e0f6b0ad291f5e2c3347c9b15f.tmp
winypux32.exe
memory/2628-16-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/2628-71-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/2944-59-0x0000000000400000-0x00000000006C8000-memory.dmp
memory/2944-60-0x0000000000400000-0x00000000006C8000-memory.dmp
memory/2944-65-0x0000000000400000-0x00000000006C8000-memory.dmp
memory/2944-63-0x0000000000400000-0x00000000006C8000-memory.dmp
memory/3004-70-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3004-2-0x0000000000401000-0x000000000040B000-memory.dmp
memory/3004-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3896-72-0x0000000000400000-0x00000000006C8000-memory.dmp
memory/3896-90-0x0000000000400000-0x00000000006C8000-memory.dmp
memory/3896-67-0x0000000000400000-0x00000000006C8000-memory.dmp
memory/3896-75-0x0000000000400000-0x00000000006C8000-memory.dmp
memory/3896-76-0x0000000000400000-0x00000000006C8000-memory.dmp
memory/3896-79-0x0000000000400000-0x00000000006C8000-memory.dmp
memory/3896-82-0x0000000000400000-0x00000000006C8000-memory.dmp
memory/3896-85-0x0000000000400000-0x00000000006C8000-memory.dmp
memory/3896-88-0x0000000000AC0000-0x0000000000B62000-memory.dmp
memory/3896-69-0x0000000000400000-0x00000000006C8000-memory.dmp
memory/3896-95-0x0000000000400000-0x00000000006C8000-memory.dmp
memory/3896-98-0x0000000000400000-0x00000000006C8000-memory.dmp
memory/3896-101-0x0000000000400000-0x00000000006C8000-memory.dmp
memory/3896-104-0x0000000000400000-0x00000000006C8000-memory.dmp
memory/3896-107-0x0000000000400000-0x00000000006C8000-memory.dmp
memory/3896-110-0x0000000000400000-0x00000000006C8000-memory.dmp
memory/3896-113-0x0000000000400000-0x00000000006C8000-memory.dmp
memory/3896-116-0x0000000000400000-0x00000000006C8000-memory.dmp