Analysis
- max time kernel
144s - max time network
159s - platform
windows11-21h2_x64 - resource
win11-20240221-en - resource tags
- submitted
31/03/2024, 14:18
General
- Target dbf8a7650dcc6f78b36a15a0d69fe793ae156b7e539fae5ece540dcc470c050a.exe
- Size 1.8MB
- Sample240331-rmrhrsdh38
- SHA256 dbf8a7650dcc6f78b36a15a0d69fe793ae156b7e539fae5ece540dcc470c050a
Malware Config
Extracted
-
socks5systemz
-
http://cexydnd.net/search/?q=67e28dd83e0ff228160df91f7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978f571ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe19c9eb9d9b3b
Signatures
- Detect Socks5Systemz Payload 2 IoCs
- Socks5Systemz
Socks5Systemz is a botnet written in C++.
- Executes dropped EXE 3 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).
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\dbf8a7650dcc6f78b36a15a0d69fe793ae156b7e539fae5ece540dcc470c050a.exe"C:\Users\Admin\AppData\Local\Temp\dbf8a7650dcc6f78b36a15a0d69fe793ae156b7e539fae5ece540dcc470c050a.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-2IUKK.tmp\dbf8a7650dcc6f78b36a15a0d69fe793ae156b7e539fae5ece540dcc470c050a.tmp"C:\Users\Admin\AppData\Local\Temp\is-2IUKK.tmp\dbf8a7650dcc6f78b36a15a0d69fe793ae156b7e539fae5ece540dcc470c050a.tmp" /SL5="$100040,1506682,54272,C:\Users\Admin\AppData\Local\Temp\dbf8a7650dcc6f78b36a15a0d69fe793ae156b7e539fae5ece540dcc470c050a.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Audio Record Plugin\audiorecordplugin.exe"C:\Users\Admin\AppData\Local\Audio Record Plugin\audiorecordplugin.exe" -i3⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Local\Audio Record Plugin\audiorecordplugin.exe"C:\Users\Admin\AppData\Local\Audio Record Plugin\audiorecordplugin.exe" -s3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
audiorecordplugin.exe
dbf8a7650dcc6f78b36a15a0d69fe793ae156b7e539fae5ece540dcc470c050a.tmp
_iscrypt.dll
memory/920-42-0x0000000000400000-0x00000000005BC000-memory.dmp
memory/920-43-0x0000000000400000-0x00000000005BC000-memory.dmp
memory/920-38-0x0000000000400000-0x00000000005BC000-memory.dmp
memory/920-39-0x0000000000400000-0x00000000005BC000-memory.dmp
memory/984-67-0x0000000000920000-0x00000000009C2000-memory.dmp
memory/984-60-0x0000000000400000-0x00000000005BC000-memory.dmp
memory/984-96-0x0000000000400000-0x00000000005BC000-memory.dmp
memory/984-46-0x0000000000400000-0x00000000005BC000-memory.dmp
memory/984-93-0x0000000000400000-0x00000000005BC000-memory.dmp
memory/984-89-0x0000000000400000-0x00000000005BC000-memory.dmp
memory/984-49-0x0000000000400000-0x00000000005BC000-memory.dmp
memory/984-86-0x0000000000400000-0x00000000005BC000-memory.dmp
memory/984-53-0x0000000000400000-0x00000000005BC000-memory.dmp
memory/984-54-0x0000000000400000-0x00000000005BC000-memory.dmp
memory/984-57-0x0000000000400000-0x00000000005BC000-memory.dmp
memory/984-83-0x0000000000400000-0x00000000005BC000-memory.dmp
memory/984-63-0x0000000000400000-0x00000000005BC000-memory.dmp
memory/984-66-0x0000000000400000-0x00000000005BC000-memory.dmp
memory/984-80-0x0000000000400000-0x00000000005BC000-memory.dmp
memory/984-73-0x0000000000400000-0x00000000005BC000-memory.dmp
memory/984-76-0x0000000000400000-0x00000000005BC000-memory.dmp
memory/984-77-0x0000000000920000-0x00000000009C2000-memory.dmp
memory/2220-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2220-47-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2220-2-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3976-7-0x0000000000760000-0x0000000000761000-memory.dmp
memory/3976-50-0x0000000000760000-0x0000000000761000-memory.dmp
memory/3976-48-0x0000000000400000-0x00000000004B8000-memory.dmp